github.com/PandaGoAdmin/utils@v0.0.0-20211208134815-d5461603a00f/docs/v0.1.7.md

# kgo

    import "github.com/PandaGoAdmin/utils"


## Usage

```go
const (
	// Version 版本号
	Version = "0.1.7"

	Unknown = "Unknown"

	//UINT_MAX 无符号整型uint最大值
	UINT_MAX = ^uint(0)

	//UINT8_MAX 无符号整型uint8最大值, 255
	UINT8_MAX = ^uint8(0)

	//UINT16_MAX 无符号整型uint16最大值, 65535
	UINT16_MAX = ^uint16(0)

	//UINT32_MAX 无符号整型uint32最大值, 4294967295
	UINT32_MAX = ^uint32(0)

	//UINT64_MAX 无符号整型uint64最大值, 18446744073709551615
	UINT64_MAX = ^uint64(0)

	//INT_MAX 有符号整型int最大值
	INT_MAX = int(^uint(0) >> 1)
	//INT_MIN 有符号整型int最小值
	INT_MIN = ^INT_MAX

	//INT32_MAX 有符号整型int32最大值, 2147483647
	INT32_MAX = int32(^uint32(0) >> 1)
	//INT32_MIN 有符号整型int32最小值, -2147483648
	INT32_MIN = ^INT32_MAX

	//INT64_MAX 有符号整型int64最大值, 9223372036854775807
	INT64_MAX = int64(^uint64(0) >> 1)
	//INT64_MIN 有符号整型int64最小值, -9223372036854775808
	INT64_MIN = ^INT64_MAX

	// FILE_COVER_ALLOW 文件覆盖,允许
	FILE_COVER_ALLOW LkkFileCover = 1
	// FILE_COVER_IGNORE 文件覆盖,忽略
	FILE_COVER_IGNORE LkkFileCover = 0
	// FILE_COVER_DENY 文件覆盖,禁止
	FILE_COVER_DENY LkkFileCover = -1

	// FILE_TYPE_ANY 文件类型-任意
	FILE_TYPE_ANY LkkFileType = 0
	// FILE_TYPE_LINK 文件类型-链接文件
	FILE_TYPE_LINK LkkFileType = 1
	// FILE_TYPE_REGULAR 文件类型-常规文件(不包括链接)
	FILE_TYPE_REGULAR LkkFileType = 2
	// FILE_TYPE_COMMON 文件类型-普通文件(包括常规和链接)
	FILE_TYPE_COMMON LkkFileType = 3

	// FILE_TREE_ALL 文件树,查找所有(包括目录和文件)
	FILE_TREE_ALL LkkFileTree = 3
	// FILE_TREE_DIR 文件树,仅查找目录
	FILE_TREE_DIR LkkFileTree = 2
	// FILE_TREE_FILE 文件树,仅查找文件
	FILE_TREE_FILE LkkFileTree = 1

	// RAND_STRING_ALPHA 随机字符串类型,字母
	RAND_STRING_ALPHA LkkRandString = 0
	// RAND_STRING_NUMERIC 随机字符串类型,数值
	RAND_STRING_NUMERIC LkkRandString = 1
	// RAND_STRING_ALPHANUM 随机字符串类型,字母+数值
	RAND_STRING_ALPHANUM LkkRandString = 2
	// RAND_STRING_SPECIAL 随机字符串类型,字母+数值+特殊字符
	RAND_STRING_SPECIAL LkkRandString = 3
	// RAND_STRING_CHINESE 随机字符串类型,仅中文
	RAND_STRING_CHINESE LkkRandString = 4

	// CASE_NONE 忽略大小写
	CASE_NONE LkkCaseSwitch = 0
	// CASE_LOWER 检查小写
	CASE_LOWER LkkCaseSwitch = 1
	// CASE_UPPER 检查大写
	CASE_UPPER LkkCaseSwitch = 2

	// PAD_LEFT 左侧填充
	PAD_LEFT LkkPadType = 0
	// PAD_RIGHT 右侧填充
	PAD_RIGHT LkkPadType = 1
	// PAD_BOTH 两侧填充
	PAD_BOTH LkkPadType = 2

	// PKCS_NONE 不进行填充
	PKCS_NONE LkkPKCSType = -1
	// PKCS_ZERO PKCS 0值填充
	PKCS_ZERO LkkPKCSType = 0
	// PKCS_SEVEN 即PKCS7
	PKCS_SEVEN LkkPKCSType = 7

	// COMPARE_ONLY_VALUE 仅比较值
	COMPARE_ONLY_VALUE LkkArrCompareType = 0
	// COMPARE_ONLY_KEY 仅比较键
	COMPARE_ONLY_KEY LkkArrCompareType = 1
	// COMPARE_BOTH_KEYVALUE 同时比较键和值
	COMPARE_BOTH_KEYVALUE LkkArrCompareType = 2

	//默认浮点数精确小数位数
	FLOAT_DECIMAL uint8 = 8

	//AuthCode 动态密钥长度,须<32
	DYNAMIC_KEY_LEN = 8

	//检查连接超时的时间
	CHECK_CONNECT_TIMEOUT = time.Second * 5

	// 正则模式-全中文
	PATTERN_CHINESE_ALL = "^[\u4e00-\u9fa5]+$"

	// 正则模式-中文名称
	PATTERN_CHINESE_NAME = "^[\u4e00-\u9fa5][.•·\u4e00-\u9fa5]{0,30}[\u4e00-\u9fa5]$"

	// 正则模式-多字节字符
	PATTERN_MULTIBYTE = "[^\x00-\x7F]"

	// 正则模式-ASCII字符
	PATTERN_ASCII = "^[\x00-\x7F]+$"

	// 正则模式-全角字符
	PATTERN_FULLWIDTH = "[^\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]"

	// 正则模式-半角字符
	PATTERN_HALFWIDTH = "[\u0020-\u007E\uFF61-\uFF9F\uFFA0-\uFFDC\uFFE8-\uFFEE0-9a-zA-Z]"

	// 正则模式-词语,不以下划线开头的中文、英文、数字、下划线
	PATTERN_WORD = "^[a-zA-Z0-9\u4e00-\u9fa5][a-zA-Z0-9_\u4e00-\u9fa5]+$"

	// 正则模式-浮点数
	PATTERN_FLOAT = `^(-?\d+)(\.\d+)`

	// 正则模式-邮箱
	PATTERN_EMAIL = "^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$"

	// 正则模式-用户名-英文
	PATTERN_USERNAMEEN = `^[a-zA-Z0-9_.]+$`

	// 正则模式-大陆手机号
	PATTERN_MOBILECN = `^1[3-9]\d{9}$`

	// 正则模式-固定电话
	PATTERN_TEL_FIX = `^(010|02\d{1}|0[3-9]\d{2})-\d{7,9}(-\d+)?$`

	// 正则模式-400或800
	PATTERN_TEL_4800 = `^[48]00\d?(-?\d{3,4}){2}$`

	// 正则模式-座机号(固定电话或400或800)
	PATTERN_TELEPHONE = `(` + PATTERN_TEL_FIX + `)|(` + PATTERN_TEL_4800 + `)`

	// 正则模式-电话(手机或固话)
	PATTERN_PHONE = `(` + PATTERN_MOBILECN + `)|(` + PATTERN_TEL_FIX + `)`

	// 正则模式-日期时间
	PATTERN_DATETIME = `^[0-9]{4}(|\-[0-9]{2}(|\-[0-9]{2}(|\s+[0-9]{2}(|:[0-9]{2}(|:[0-9]{2})))))$`

	// 正则模式-身份证号码,18位或15位
	PATTERN_CREDIT_NO = `(^[1-9]\d{5}(18|19|20)\d{2}((0[1-9])|(1[0-2]))(([0-2][1-9])|10|20|30|31)\d{3}[0-9Xx]$)|(^[1-9]\d{5}\d{2}((0[1-9])|(10|11|12))(([0-2][1-9])|10|20|30|31)\d{3}$)`

	// 正则模式-小写英文
	PATTERN_ALPHA_LOWER = `^[a-z]+$`

	// 正则模式-大写英文
	PATTERN_ALPHA_UPPER = `^[A-Z]+$`

	// 正则模式-字母或数字
	PATTERN_ALPHA_NUMERIC = `^[a-zA-Z0-9]+$`

	// 正则模式-十六进制颜色
	PATTERN_HEXCOLOR = `^#?([0-9a-fA-F]{3}|[0-9a-fA-F]{6})$`

	// 正则模式-RGB颜色
	PATTERN_RGBCOLOR = "^rgb\\(\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*,\\s*(0|[1-9]\\d?|1\\d\\d?|2[0-4]\\d|25[0-5])\\s*\\)$"

	// 正则模式-全空白字符
	PATTERN_WHITESPACE_ALL = "^[[:space:]]+$"

	// 正则模式-带空白字符
	PATTERN_WHITESPACE_HAS = ".*[[:space:]]"

	// 正则模式-连续空白符
	PATTERN_WHITESPACE_DUPLICATE = `[[:space:]]{2,}|[\s\p{Zs}]{2,}`

	// 正则模式-base64字符串
	PATTERN_BASE64 = "^(?:[A-Za-z0-9+\\/]{4})*(?:[A-Za-z0-9+\\/]{2}==|[A-Za-z0-9+\\/]{3}=|[A-Za-z0-9+\\/]{4})$"

	// 正则模式-base64编码图片
	PATTERN_BASE64_IMAGE = `^data:\s*(image|img)\/(\w+);base64`

	// 正则模式-html标签
	PATTERN_HTML_TAGS = `<(.|\n)*?>`

	// 正则模式-DNS名称
	PATTERN_DNSNAME = `^([a-zA-Z0-9_]{1}[a-zA-Z0-9_-]{0,62}){1}(\.[a-zA-Z0-9_]{1}[a-zA-Z0-9_-]{0,62})*[\._]?$`

	// 正则模式-MD5
	PATTERN_MD5 = `^(?i)([0-9a-h]{32})$`

	// 正则模式-SHA1
	PATTERN_SHA1 = `^(?i)([0-9a-h]{40})$`

	// 正则模式-SHA256
	PATTERN_SHA256 = `^(?i)([0-9a-h]{64})$`

	// 正则模式-SHA512
	PATTERN_SHA512 = `^(?i)([0-9a-h]{128})$`

	//正则模式-等式 x = y
	PATTERN_EQUATION = `['"]?([\w\-]+)['"]?[\s]*=[\s]*['"]?(.*)['"]?`

	// 正则模式-emoji表情符
	PATTERN_EMOJI = `[\x{1F3F4}](?:\x{E0067}\x{E0062}\x{E0077}\x{E006C}\x{E0073}\x{E007F})|[\x{1F3F4}](?:\x{E0067}\x{E0062}\x{E0073}\x{E0063}\x{E0074}\x{E007F})|[\x{1F3F4}](?:\x{E0067}\x{E0062}\x{E0065}\x{E006E}\x{E0067}\x{E007F})|[\x{1F3F4}](?:\x{200D}\x{2620}\x{FE0F})|[\x{1F3F3}](?:\x{FE0F}\x{200D}\x{1F308})|[\x{0023}\x{002A}\x{0030}\x{0031}\x{0032}\x{0033}\x{0034}\x{0035}\x{0036}\x{0037}\x{0038}\x{0039}](?:\x{FE0F}\x{20E3})|[\x{1F441}](?:\x{FE0F}\x{200D}\x{1F5E8}\x{FE0F})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F467}\x{200D}\x{1F467})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F467}\x{200D}\x{1F466})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F467})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F466}\x{200D}\x{1F466})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F466})|[\x{1F468}](?:\x{200D}\x{1F468}\x{200D}\x{1F467}\x{200D}\x{1F467})|[\x{1F468}](?:\x{200D}\x{1F468}\x{200D}\x{1F466}\x{200D}\x{1F466})|[\x{1F468}](?:\x{200D}\x{1F468}\x{200D}\x{1F467}\x{200D}\x{1F466})|[\x{1F468}](?:\x{200D}\x{1F468}\x{200D}\x{1F467})|[\x{1F468}](?:\x{200D}\x{1F468}\x{200D}\x{1F466})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F469}\x{200D}\x{1F467}\x{200D}\x{1F467})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F469}\x{200D}\x{1F466}\x{200D}\x{1F466})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F469}\x{200D}\x{1F467}\x{200D}\x{1F466})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F469}\x{200D}\x{1F467})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F469}\x{200D}\x{1F466})|[\x{1F469}](?:\x{200D}\x{2764}\x{FE0F}\x{200D}\x{1F469})|[\x{1F469}\x{1F468}](?:\x{200D}\x{2764}\x{FE0F}\x{200D}\x{1F468})|[\x{1F469}](?:\x{200D}\x{2764}\x{FE0F}\x{200D}\x{1F48B}\x{200D}\x{1F469})|[\x{1F469}\x{1F468}](?:\x{200D}\x{2764}\x{FE0F}\x{200D}\x{1F48B}\x{200D}\x{1F468})|[\x{1F468}\x{1F469}](?:\x{1F3FF}\x{200D}\x{1F9B3})|[\x{1F468}\x{1F469}](?:\x{1F3FE}\x{200D}\x{1F9B3})|[\x{1F468}\x{1F469}](?:\x{1F3FD}\x{200D}\x{1F9B3})|[\x{1F468}\x{1F469}](?:\x{1F3FC}\x{200D}\x{1F9B3})|[\x{1F468}\x{1F469}](?:\x{1F3FB}\x{200D}\x{1F9B3})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9B3})|[\x{1F468}\x{1F469}](?:\x{1F3FF}\x{200D}\x{1F9B2})|[\x{1F468}\x{1F469}](?:\x{1F3FE}\x{200D}\x{1F9B2})|[\x{1F468}\x{1F469}](?:\x{1F3FD}\x{200D}\x{1F9B2})|[\x{1F468}\x{1F469}](?:\x{1F3FC}\x{200D}\x{1F9B2})|[\x{1F468}\x{1F469}](?:\x{1F3FB}\x{200D}\x{1F9B2})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9B2})|[\x{1F468}\x{1F469}](?:\x{1F3FF}\x{200D}\x{1F9B1})|[\x{1F468}\x{1F469}](?:\x{1F3FE}\x{200D}\x{1F9B1})|[\x{1F468}\x{1F469}](?:\x{1F3FD}\x{200D}\x{1F9B1})|[\x{1F468}\x{1F469}](?:\x{1F3FC}\x{200D}\x{1F9B1})|[\x{1F468}\x{1F469}](?:\x{1F3FB}\x{200D}\x{1F9B1})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9B1})|[\x{1F468}\x{1F469}](?:\x{1F3FF}\x{200D}\x{1F9B0})|[\x{1F468}\x{1F469}](?:\x{1F3FE}\x{200D}\x{1F9B0})|[\x{1F468}\x{1F469}](?:\x{1F3FD}\x{200D}\x{1F9B0})|[\x{1F468}\x{1F469}](?:\x{1F3FC}\x{200D}\x{1F9B0})|[\x{1F468}\x{1F469}](?:\x{1F3FB}\x{200D}\x{1F9B0})|[\x{1F468}\x{1F469}](?:\x{200D}\x{1F9B0})|[\x{1F575}\x{1F3CC}\x{26F9}\x{1F3CB}](?:\x{FE0F}\x{200D}\x{2640}\x{FE0F})|[\x{1F575}\x{1F3CC}\x{26F9}\x{1F3CB}](?:\x{FE0F}\x{200D}\x{2642}\x{FE0F})|[\x{1F46E}\x{1F575}\x{1F482}\x{1F477}\x{1F473}\x{1F471}\x{1F9D9}\x{1F9DA}\x{1F9DB}\x{1F9DC}\x{1F9DD}\x{1F64D}\x{1F64E}\x{1F645}\x{1F646}\x{1F481}\x{1F64B}\x{1F647}\x{1F926}\x{1F937}\x{1F486}\x{1F487}\x{1F6B6}\x{1F3C3}\x{1F9D6}\x{1F9D7}\x{1F9D8}\x{1F3CC}\x{1F3C4}\x{1F6A3}\x{1F3CA}\x{26F9}\x{1F3CB}\x{1F6B4}\x{1F6B5}\x{1F938}\x{1F93D}\x{1F93E}\x{1F939}](?:\x{1F3FF}\x{200D}\x{2640}\x{FE0F})|[\x{1F46E}\x{1F575}\x{1F482}\x{1F477}\x{1F473}\x{1F471}\x{1F9D9}\x{1F9DA}\x{1F9DB}\x{1F9DC}\x{1F9DD}\x{1F64D}\x{1F64E}\x{1F645}\x{1F646}\x{1F481}\x{1F64B}\x{1F647}\x{1F926}\x{1F937}\x{1F486}\x{1F487}\x{1F6B6}\x{1F3C3}\x{1F9D6}\x{1F9D7}\x{1F9D8}\x{1F3CC}\x{1F3C4}\x{1F6A3}\x{1F3CA}\x{26F9}\x{1F3CB}\x{1F6B4}\x{1F6B5}\x{1F938}\x{1F93D}\x{1F93E}\x{1F939}](?:\x{1F3FE}\x{200D}\x{2640}\x{FE0F})|[\x{1F46E}\x{1F575}\x{1F482}\x{1F477}\x{1F473}\x{1F471}\x{1F9D9}\x{1F9DA}\x{1F9DB}\x{1F9DC}\x{1F9DD}\x{1F64D}\x{1F64E}\x{1F645}\x{1F646}\x{1F481}\x{1F64B}\x{1F647}\x{1F926}\x{1F937}\x{1F486}\x{1F487}\x{1F6B6}\x{1F3C3}\x{1F9D6}\x{1F9D7}\x{1F9D8}\x{1F3CC}\x{1F3C4}\x{1F6A3}\x{1F3CA}\x{26F9}\x{1F3CB}\x{1F6B4}\x{1F6B5}\x{1F938}\x{1F93D}\x{1F93E}\x{1F939}](?:\x{1F3FD}\x{200D}\x{2640}\x{FE0F})|[\x{1F46E}\x{1F575}\x{1F482}\x{1F477}\x{1F473}\x{1F471}\x{1F9D9}\x{1F9DA}\x{1F9DB}\x{1F9DC}\x{1F9DD}\x{1F64D}\x{1F64E}\x{1F645}\x{1F646}\x{1F481}\x{1F64B}\x{1F647}\x{1F926}\x{1F937}\x{1F486}\x{1F487}\x{1F6B6}\x{1F3C3}\x{1F9D6}\x{1F9D7}\x{1F9D8}\x{1F3CC}\x{1F3C4}\x{1F6A3}\x{1F3CA}\x{26F9}\x{1F3CB}\x{1F6B4}\x{1F6B5}\x{1F938}\x{1F93D}\x{1F93E}\x{1F939}](?:\x{1F3FC}\x{200D}\x{2640}\x{FE0F})|[\x{1F46E}\x{1F575}\x{1F482}\x{1F477}\x{1F473}\x{1F471}\x{1F9D9}\x{1F9DA}\x{1F9DB}\x{1F9DC}\x{1F9DD}\x{1F64D}\x{1F64E}\x{1F645}\x{1F646}\x{1F481}\x{1F64B}\x{1F647}\x{1F926}\x{1F937}\x{1F486}\x{1F487}\x{1F6B6}\x{1F3C3}\x{1F9D6}\x{1F9D7}\x{1F9D8}\x{1F3CC}\x{1F3C4}\x{1F6A3}\x{1F3CA}\x{26F9}\x{1F3CB}\x{1F6B4}\x{1F6B5}\x{1F938}\x{1F93D}\x{1F93E}\x{1F939}](?:\x{1F3FB}\x{200D}\x{2640}\x{FE0F})|[\x{1F46E}\x{1F9B8}\x{1F9B9}\x{1F482}\x{1F477}\x{1F473}\x{1F471}\x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1F1FB}\x{1F1FF}](?:\x{1F1E6})|[\x{00A9}\x{00AE}\x{203C}\x{2049}\x{2122}\x{2139}\x{2194}-\x{2199}\x{21A9}-\x{21AA}\x{231A}-\x{231B}\x{2328}\x{23CF}\x{23E9}-\x{23F3}\x{23F8}-\x{23FA}\x{24C2}\x{25AA}-\x{25AB}\x{25B6}\x{25C0}\x{25FB}-\x{25FE}\x{2600}-\x{2604}\x{260E}\x{2611}\x{2614}-\x{2615}\x{2618}\x{261D}\x{2620}\x{2622}-\x{2623}\x{2626}\x{262A}\x{262E}-\x{262F}\x{2638}-\x{263A}\x{2640}\x{2642}\x{2648}-\x{2653}\x{2660}\x{2663}\x{2665}-\x{2666}\x{2668}\x{267B}\x{267E}-\x{267F}\x{2692}-\x{2697}\x{2699}\x{269B}-\x{269C}\x{26A0}-\x{26A1}\x{26AA}-\x{26AB}\x{26B0}-\x{26B1}\x{26BD}-\x{26BE}\x{26C4}-\x{26C5}\x{26C8}\x{26CE}-\x{26CF}\x{26D1}\x{26D3}-\x{26D4}\x{26E9}-\x{26EA}\x{26F0}-\x{26F5}\x{26F7}-\x{26FA}\x{26FD}\x{2702}\x{2705}\x{2708}-\x{270D}\x{270F}\x{2712}\x{2714}\x{2716}\x{271D}\x{2721}\x{2728}\x{2733}-\x{2734}\x{2744}\x{2747}\x{274C}\x{274E}\x{2753}-\x{2755}\x{2757}\x{2763}-\x{2764}\x{2795}-\x{2797}\x{27A1}\x{27B0}\x{27BF}\x{2934}-\x{2935}\x{2B05}-\x{2B07}\x{2B1B}-\x{2B1C}\x{2B50}\x{2B55}\x{3030}\x{303D}\x{3297}\x{3299}\x{1F004}\x{1F0CF}\x{1F170}-\x{1F171}\x{1F17E}-\x{1F17F}\x{1F18E}\x{1F191}-\x{1F19A}\x{1F201}-\x{1F202}\x{1F21A}\x{1F22F}\x{1F232}-\x{1F23A}\x{1F250}-\x{1F251}\x{1F300}-\x{1F321}\x{1F324}-\x{1F393}\x{1F396}-\x{1F397}\x{1F399}-\x{1F39B}\x{1F39E}-\x{1F3F0}\x{1F3F3}-\x{1F3F5}\x{1F3F7}-\x{1F3FA}\x{1F400}-\x{1F4FD}\x{1F4FF}-\x{1F53D}\x{1F549}-\x{1F54E}\x{1F550}-\x{1F567}\x{1F56F}-\x{1F570}\x{1F573}-\x{1F57A}\x{1F587}\x{1F58A}-\x{1F58D}\x{1F590}\x{1F595}-\x{1F596}\x{1F5A4}-\x{1F5A5}\x{1F5A8}\x{1F5B1}-\x{1F5B2}\x{1F5BC}\x{1F5C2}-\x{1F5C4}\x{1F5D1}-\x{1F5D3}\x{1F5DC}-\x{1F5DE}\x{1F5E1}\x{1F5E3}\x{1F5E8}\x{1F5EF}\x{1F5F3}\x{1F5FA}-\x{1F64F}\x{1F680}-\x{1F6C5}\x{1F6CB}-\x{1F6D2}\x{1F6E0}-\x{1F6E5}\x{1F6E9}\x{1F6EB}-\x{1F6EC}\x{1F6F0}\x{1F6F3}-\x{1F6F9}\x{1F910}-\x{1F93A}\x{1F93C}-\x{1F93E}\x{1F940}-\x{1F945}\x{1F947}-\x{1F970}\x{1F973}-\x{1F976}\x{1F97A}\x{1F97C}-\x{1F9A2}\x{1F9B0}-\x{1F9B9}\x{1F9C0}-\x{1F9C2}\x{1F9D0}-\x{1F9FF}]`
)
```

```go
var (
	// Kuptime 当前服务启动时间
	Kuptime = time.Now()

	// KFile utilities
	KFile LkkFile

	// KStr utilities
	KStr LkkString

	// KNum utilities
	KNum LkkNumber

	// KArr utilities
	KArr LkkArray

	// KTime utilities
	KTime LkkTime

	// KConv utilities
	KConv LkkConvert

	// KOS utilities
	KOS LkkOS

	// KEncr utilities
	KEncr LkkEncrypt

	// KDbug utilities
	KDbug LkkDebug

	// KPrivCidrs 私有网段的CIDR数组
	KPrivCidrs []*net.IPNet

	// KDelimiter 本库自定义分隔符
	KDelimiter = "$@#KSYS#@$"

	// 身份证区域
	CreditArea = map[string]string{"11": "北京", "12": "天津", "13": "河北", "14": "山西", "15": "内蒙古", "21": "辽宁", "22": "吉林", "23": "黑龙江", " 31": "上海", "32": "江苏", "33": "浙江", "34": "安徽", "35": "福建", "36": "江西", "37": "山东", "41": "河南", "42": "湖北", "43": "湖南", "44": "广东", "45": "广西", "46": "海南", "50": "重庆", "51": "四川", "52": "贵州", "53": "云南", "54": "西藏", "61": "陕西", "62": "甘肃", "63": "青海", "64": "宁夏", "65": "新疆", "71": "台湾", "81": "香港", "82": "澳门", "91": "国外"}

	// 常用中文字符集
	CommonChinese = []rune("们以我到他会作时要动国产的一是工就年阶义发成部民可出能方进在了不和有大这主中人上为来分生对于学下级地个用同行面说种过命度革而多子后自社加小机也经力线本电高量长党得实家定深法表着水理化争现所二起政三好十战无农使性前等反体合斗路图把结第里正新开论之物从当两些还天资事队批点育重其思与间内去因件日利相由压员气业代全组数果期导平各基或月毛然如应形想制心样干都向变关问比展那它最及外没看治提五解系林者米群头意只明四道马认次文通但条较克又公孔领军流入接席位情运器并飞原油放立题质指建区验活众很教决特此常石强极土少已根共直团统式转别造切九你取西持总料连任志观调七么山程百报更见必真保热委手改管处己将修支识病象几先老光专什六型具示复安带每东增则完风回南广劳轮科北打积车计给节做务被整联步类集号列温装即毫知轴研单色坚据速防史拉世设达尔场织历花受求传口断况采精金界品判参层止边清至万确究书术状厂须离再目海交权且儿青才证低越际八试规斯近注办布门铁需走议县兵固除般引齿千胜细影济白格效置推空配刀叶率述今选养德话查差半敌始片施响收华觉备名红续均药标记难存测士身紧液派准斤角降维板许破述技消底床田势端感往神便贺村构照容非搞亚磨族火段算适讲按值美态黄易彪服早班麦削信排台声该击素张密害侯草何树肥继右属市严径螺检左页抗苏显苦英快称坏移约巴材省黑武培著河帝仅针怎植京助升王眼她抓含苗副杂普谈围食射源例致酸旧却充足短划剂宣环落首尺波承粉践府鱼随考刻靠够满夫失包住促枝局菌杆周护岩师举曲春元超负砂封换太模贫减阳扬江析亩木言球朝医校古呢稻宋听唯输滑站另卫字鼓刚写刘微略范供阿块某功套友限项余倒卷创律雨让骨远帮初皮播优占死毒圈伟季训控激找叫云互跟裂粮粒母练塞钢顶策双留误础吸阻故寸盾晚丝女散焊功株亲院冷彻弹错散商视艺灭版烈零室轻血倍缺厘泵察绝富城冲喷壤简否柱李望盘磁雄似困巩益洲脱投送奴侧润盖挥距触星松送获兴独官混纪依未突架宽冬章湿偏纹吃执阀矿寨责熟稳夺硬价努翻奇甲预职评读背协损棉侵灰虽矛厚罗泥辟告卵箱掌氧恩爱停曾溶营终纲孟钱待尽俄缩沙退陈讨奋械载胞幼哪剥迫旋征槽倒握担仍呀鲜吧卡粗介钻逐弱脚怕盐末阴丰雾冠丙街莱贝辐肠付吉渗瑞惊顿挤秒悬姆烂森糖圣凹陶词迟蚕亿矩康遵牧遭幅园腔订香肉弟屋敏恢忘编印蜂急拿扩伤飞露核缘游振操央伍域甚迅辉异序免纸夜乡久隶缸夹念兰映沟乙吗儒杀汽磷艰晶插埃燃欢铁补咱芽永瓦倾阵碳演威附牙芽永瓦斜灌欧献顺猪洋腐请透司危括脉宜笑若尾束壮暴企菜穗楚汉愈绿拖牛份染既秋遍锻玉夏疗尖殖井费州访吹荣铜沿替滚客召旱悟刺脑措贯藏敢令隙炉壳硫煤迎铸粘探临薄旬善福纵择礼愿伏残雷延烟句纯渐耕跑泽慢栽鲁赤繁境潮横掉锥希池败船假亮谓托伙哲怀割摆贡呈劲财仪沉炼麻罪祖息车穿货销齐鼠抽画饲龙库守筑房歌寒喜哥洗蚀废纳腹乎录镜妇恶脂庄擦险赞钟摇典柄辩竹谷卖乱虚桥奥伯赶垂途额壁网截野遗静谋弄挂课镇妄盛耐援扎虑键归符庆聚绕摩忙舞遇索顾胶羊湖钉仁音迹碎伸灯避泛亡答勇频皇柳哈揭甘诺概宪浓岛袭谁洪谢炮浇斑讯懂灵蛋闭孩释乳巨徒私银伊景坦累匀霉杜乐勒隔弯绩招绍胡呼痛峰零柴簧午跳居尚丁秦稍追梁折耗碱殊岗挖氏刃剧堆赫荷胸衡勤膜篇登驻案刊秧缓凸役剪川雪链渔啦脸户洛孢勃盟买杨宗焦赛旗滤硅炭股坐蒸凝竟陷枪黎救冒暗洞犯筒您宋弧爆谬涂味津臂障褐陆啊健尊豆拔莫抵桑坡缝警挑污冰柬嘴啥饭塑寄赵喊垫丹渡耳刨虎笔稀昆浪萨茶滴浅拥穴覆伦娘吨浸袖珠雌妈紫戏塔锤震岁貌洁剖牢锋疑霸闪埔猛诉刷狠忽灾闹乔唐漏闻沈熔氯荒茎男凡抢像浆旁玻亦忠唱蒙予纷捕锁尤乘乌智淡允叛畜俘摸锈扫毕璃宝芯爷鉴秘净蒋钙肩腾枯抛轨堂拌爸循诱祝励肯酒绳穷塘燥泡袋朗喂铝软渠颗惯贸粪综墙趋彼届墨碍启逆卸航衣孙龄岭骗休借")

	// html抽取文本要排除的标签
	TextHtmlExcludeTags = []string{"head", "title", "img", "form", "textarea", "input", "select", "button", "iframe", "script", "style", "option"}

	// 已编译的正则
	RegFormatDir             = regexp.MustCompile(`[\/]{2,}`) //连续的"//"或"\\"或"\/"或"/\"
	RegChineseAll            = regexp.MustCompile(PATTERN_CHINESE_ALL)
	RegChineseName           = regexp.MustCompile(PATTERN_CHINESE_NAME)
	RegWord                  = regexp.MustCompile(PATTERN_WORD)
	RegMultiByte             = regexp.MustCompile(PATTERN_MULTIBYTE)
	RegFullWidth             = regexp.MustCompile(PATTERN_FULLWIDTH)
	RegHalfWidth             = regexp.MustCompile(PATTERN_HALFWIDTH)
	RegFloat                 = regexp.MustCompile(PATTERN_FLOAT)
	RegEmail                 = regexp.MustCompile(PATTERN_EMAIL)
	RegMobilecn              = regexp.MustCompile(PATTERN_MOBILECN)
	RegTelephone             = regexp.MustCompile(PATTERN_TELEPHONE)
	RegPhone                 = regexp.MustCompile(PATTERN_PHONE)
	RegDatetime              = regexp.MustCompile(PATTERN_DATETIME)
	RegCreditno              = regexp.MustCompile(PATTERN_CREDIT_NO)
	RegAlphaLower            = regexp.MustCompile(PATTERN_ALPHA_LOWER)
	RegAlphaUpper            = regexp.MustCompile(PATTERN_ALPHA_UPPER)
	RegAlphaNumeric          = regexp.MustCompile(PATTERN_ALPHA_NUMERIC)
	RegHexcolor              = regexp.MustCompile(PATTERN_HEXCOLOR)
	RegRgbcolor              = regexp.MustCompile(PATTERN_RGBCOLOR)
	RegWhitespace            = regexp.MustCompile(`\s`)
	RegWhitespaceAll         = regexp.MustCompile(PATTERN_WHITESPACE_ALL)
	RegWhitespaceHas         = regexp.MustCompile(PATTERN_WHITESPACE_HAS)
	RegWhitespaceDuplicate   = regexp.MustCompile(PATTERN_WHITESPACE_DUPLICATE)
	RegBase64                = regexp.MustCompile(PATTERN_BASE64)
	RegBase64Image           = regexp.MustCompile(PATTERN_BASE64_IMAGE)
	RegHtmlTag               = regexp.MustCompile(PATTERN_HTML_TAGS)
	RegDNSname               = regexp.MustCompile(PATTERN_DNSNAME)
	RegUrlBackslashDuplicate = regexp.MustCompile(`([^:])[\/]{2,}`) //url中连续的"//"或"\\"或"\/"或"/\"
	RegMd5                   = regexp.MustCompile(PATTERN_MD5)
	RegSha1                  = regexp.MustCompile(PATTERN_SHA1)
	RegSha256                = regexp.MustCompile(PATTERN_SHA256)
	RegSha512                = regexp.MustCompile(PATTERN_SHA512)
	RegEmoji                 = regexp.MustCompile(PATTERN_EMOJI)
	RegUsernameen            = regexp.MustCompile(PATTERN_USERNAMEEN)
	RegEquation              = regexp.MustCompile(PATTERN_EQUATION)
)
```

#### func  CallFunc

```go
func CallFunc(f interface{}, args ...interface{}) (results []interface{}, err error)
```
CallFunc 动态调用函数.

#### func  GetFieldValue

```go
func GetFieldValue(arr interface{}, fieldName string) (res interface{}, err error)
```
GetFieldValue 获取(字典/结构体的)字段值;fieldName为字段名,大小写敏感.

#### func  GetVariatePointerAddr

```go
func GetVariatePointerAddr(val interface{}) int64
```
GetVariatePointerAddr 获取变量的指针地址.

#### func  GetVariateType

```go
func GetVariateType(v interface{}) string
```
GetVariateType 获取变量类型.

#### func  VerifyFunc

```go
func VerifyFunc(f interface{}, args ...interface{}) (vf reflect.Value, vargs []reflect.Value, err error)
```
VerifyFunc 验证是否函数,并且参数个数、类型是否正确. 返回有效的函数、有效的参数.

#### type BiosInfo

```go
type BiosInfo struct {
	Vendor  string `json:"vendor"`
	Version string `json:"version"`
	Date    string `json:"date"`
}
```

BiosInfo BIOS信息

#### type BoardInfo

```go
type BoardInfo struct {
	Name     string `json:"name"`
	Vendor   string `json:"vendor"`
	Version  string `json:"version"`
	Serial   string `json:"serial"`
	AssetTag string `json:"assettag"`
}
```

BoardInfo Board信息

#### type CallBack

```go
type CallBack func()
```

CallBack 回调执行函数,无参数且无返回值

#### type CpuInfo

```go
type CpuInfo struct {
	Vendor  string `json:"vendor"`
	Model   string `json:"model"`
	Speed   string `json:"speed"`   // CPU clock rate in MHz
	Cache   uint   `json:"cache"`   // CPU cache size in KB
	Cpus    uint   `json:"cpus"`    // number of physical CPUs
	Cores   uint   `json:"cores"`   // number of physical CPU cores
	Threads uint   `json:"threads"` // number of logical (HT) CPU cores
}
```

CpuInfo CPU信息

#### type FileFilter

```go
type FileFilter func(string) bool
```

FileFilter 文件过滤函数

#### type LkkArrCompareType

```go
type LkkArrCompareType uint8
```

LkkArrCompareType 枚举类型,数组比较方式

#### type LkkArray

```go
type LkkArray struct {
}
```

LkkArray is the receiver of array utilities

#### func (*LkkArray) ArrayChunk

```go
func (ka *LkkArray) ArrayChunk(arr interface{}, size int) [][]interface{}
```
ArrayChunk 将一个数组/切片分割成多个,size为每个子数组的长度.

#### func (*LkkArray) ArrayColumn

```go
func (ka *LkkArray) ArrayColumn(arr interface{}, columnKey string) []interface{}
```
ArrayColumn 返回数组(切片/字典/结构体)中元素指定的一列. arr的元素必须是字典; columnKey为元素的字段名; 该方法效率较低.

#### func (*LkkArray) ArrayDiff

```go
func (ka *LkkArray) ArrayDiff(arr1, arr2 interface{}, compareType LkkArrCompareType) map[interface{}]interface{}
```
ArrayDiff 计算数组(数组/切片/字典)的交集,返回在 arr1 中但不在 arr2 里的元素,注意会同时返回键.
compareType为两个数组的比较方式,枚举类型,有: COMPARE_ONLY_VALUE 根据元素值比较, 返回在 arr1 中但是不在arr2
里的值; COMPARE_ONLY_KEY 根据 arr1 中的键名和 arr2 进行比较,返回不同键名的项; COMPARE_BOTH_KEYVALUE
同时比较键和值.

#### func (*LkkArray) ArrayFlip

```go
func (ka *LkkArray) ArrayFlip(arr interface{}) map[interface{}]interface{}
```
ArrayFlip 交换数组(切片/字典)中的键和值.

#### func (*LkkArray) ArrayIntersect

```go
func (ka *LkkArray) ArrayIntersect(arr1, arr2 interface{}, compareType LkkArrCompareType) map[interface{}]interface{}
```
ArrayIntersect 计算数组(数组/切片/字典)的交集,返回在 arr1 中且在 arr2 里的元素,注意会同时返回键.
compareType为两个数组的比较方式,枚举类型,有: COMPARE_ONLY_VALUE 根据元素值比较, 返回在 arr1 中且在arr2 里的值;
COMPARE_ONLY_KEY 根据 arr1 中的键名和 arr2 进行比较,返回相同键名的项; COMPARE_BOTH_KEYVALUE
同时比较键和值.

#### func (*LkkArray) ArrayKeyExists

```go
func (ka *LkkArray) ArrayKeyExists(key interface{}, arr interface{}) bool
```
ArrayKeyExists 检查arr(数组/切片/字典/结构体)里是否有key指定的键名(索引/字段).

#### func (*LkkArray) ArrayKeys

```go
func (ka *LkkArray) ArrayKeys(arr interface{}) []interface{}
```
ArrayKeys 返回数组(切片/字典/结构体)中所有的键名;如果是结构体,只返回公开的字段.

#### func (*LkkArray) ArrayPad

```go
func (ka *LkkArray) ArrayPad(arr interface{}, size int, item interface{}) []interface{}
```
ArrayPad 以指定长度将一个值item填充进arr数组/切片. 若 size 为正，则填补到数组的右侧，如果为负则从左侧开始填补; 若 size
的绝对值小于或等于 arr 数组的长度则没有任何填补.

#### func (*LkkArray) ArrayRand

```go
func (ka *LkkArray) ArrayRand(arr interface{}, num int) []interface{}
```
ArrayRand 从数组(切片/字典)中随机取出num个元素.

#### func (*LkkArray) ArrayReverse

```go
func (ka *LkkArray) ArrayReverse(arr interface{}) []interface{}
```
ArrayReverse 返回单元顺序相反的数组(仅限数组和切片).

#### func (*LkkArray) ArraySearchItem

```go
func (ka *LkkArray) ArraySearchItem(arr interface{}, condition map[string]interface{}) (res interface{})
```
ArraySearchItem 从数组(切片/字典)中搜索对应元素(单个). arr为要查找的数组,元素必须为字典/结构体;condition为条件字典.

#### func (*LkkArray) ArraySearchMutil

```go
func (ka *LkkArray) ArraySearchMutil(arr interface{}, condition map[string]interface{}) (res []interface{})
```
ArraySearchMutil 从数组(切片/字典)中搜索对应元素(多个). arr为要查找的数组,元素必须为字典/结构体;condition为条件字典.

#### func (*LkkArray) ArrayShuffle

```go
func (ka *LkkArray) ArrayShuffle(arr interface{}) []interface{}
```
ArrayShuffle 打乱数组/切片排序.

#### func (*LkkArray) ArrayUnique

```go
func (ka *LkkArray) ArrayUnique(arr interface{}) map[interface{}]interface{}
```
ArrayUnique 移除数组(切片/字典)中重复的值,返回字典,保留键名.

#### func (*LkkArray) ArrayValues

```go
func (ka *LkkArray) ArrayValues(arr interface{}, filterZero bool) []interface{}
```
ArrayValues 返回arr(数组/切片/字典/结构体)中所有的值;如果是结构体,只返回公开字段的值. filterZero
是否过滤零值元素(nil,false,0,"",[]),true时排除零值元素,false时保留零值元素.

#### func (*LkkArray) CutSlice

```go
func (ka *LkkArray) CutSlice(arr interface{}, offset, size int) []interface{}
```
CutSlice 裁剪切片,返回根据offset(起始位置)和size(数量)参数所指定的arr(数组/切片)中的一段切片.

#### func (*LkkArray) DeleteSliceItems

```go
func (ka *LkkArray) DeleteSliceItems(val interface{}, ids ...int) (res []interface{}, del int)
```
DeleteSliceItems 删除数组/切片的元素,返回一个新切片. ids为多个元素的索引(0~len(val)-1); del为删除元素的数量.

#### func (*LkkArray) Implode

```go
func (ka *LkkArray) Implode(delimiter string, arr interface{}) string
```
Implode 用delimiter将数组(数组/切片/字典/结构体)的值连接为一个字符串.

#### func (*LkkArray) InArray

```go
func (ka *LkkArray) InArray(needle interface{}, haystack interface{}) bool
```
InArray 元素needle是否在数组haystack(切片/字典)内.

#### func (*LkkArray) InInt64Slice

```go
func (ka *LkkArray) InInt64Slice(i int64, list []int64) bool
```
InInt64Slice 是否在64位整型切片内.

#### func (*LkkArray) InIntSlice

```go
func (ka *LkkArray) InIntSlice(i int, list []int) bool
```
InIntSlice 是否在整型切片内.

#### func (*LkkArray) InStringSlice

```go
func (ka *LkkArray) InStringSlice(str string, list []string) bool
```
InStringSlice 是否在字符串切片内.

#### func (*LkkArray) IsArray

```go
func (ka *LkkArray) IsArray(val interface{}) bool
```
IsArray 变量是否数组.

#### func (*LkkArray) IsArrayOrSlice

```go
func (ka *LkkArray) IsArrayOrSlice(val interface{}) bool
```
IsArrayOrSlice 变量是否数组或切片.

#### func (*LkkArray) IsEqualArray

```go
func (ka *LkkArray) IsEqualArray(arr1, arr2 interface{}) bool
```
IsEqualArray 两个数组/切片是否相同(不管元素顺序),且不会检查元素类型; arr1, arr2 是要比较的数组/切片.

#### func (*LkkArray) IsEqualMap

```go
func (ka *LkkArray) IsEqualMap(arr1, arr2 interface{}) bool
```
IsEqualMap 两个字典是否相同(不管键顺序),且不会严格检查元素类型; arr1, arr2 是要比较的字典.

#### func (*LkkArray) IsMap

```go
func (ka *LkkArray) IsMap(val interface{}) bool
```
IsMap 变量是否字典.

#### func (*LkkArray) IsSlice

```go
func (ka *LkkArray) IsSlice(val interface{}) bool
```
IsSlice 变量是否切片.

#### func (*LkkArray) IsStruct

```go
func (ka *LkkArray) IsStruct(val interface{}) bool
```
IsStruct 变量是否结构体.

#### func (*LkkArray) JoinInts

```go
func (ka *LkkArray) JoinInts(delimiter string, ints []int) (res string)
```
JoinInts 使用分隔符delimiter连接整数切片.

#### func (*LkkArray) JoinStrings

```go
func (ka *LkkArray) JoinStrings(delimiter string, strs []string) (res string)
```
JoinStrings 使用分隔符delimiter连接字符串切片strs.效率比Implode高.

#### func (*LkkArray) Length

```go
func (ka *LkkArray) Length(val interface{}) int
```
Length 获取数组/切片的长度;结果为-1表示变量不是数组或切片.

#### func (*LkkArray) MergeMap

```go
func (ka *LkkArray) MergeMap(ss ...interface{}) map[interface{}]interface{}
```
MergeMap 合并字典,相同的键名时,后面的值将覆盖前一个值. ss是元素为字典的切片.

#### func (*LkkArray) MergeSlice

```go
func (ka *LkkArray) MergeSlice(filterZero bool, ss ...interface{}) []interface{}
```
MergeSlice 合并一个或多个数组/切片. filterZero
是否过滤零值元素(nil,false,0,'',[]),true时排除零值元素,false时保留零值元素. ss是元素为数组/切片的切片.

#### func (*LkkArray) NewStrMapItf

```go
func (ka *LkkArray) NewStrMapItf() map[string]interface{}
```
NewStrMapItf 新建[字符-接口]字典.

#### func (*LkkArray) NewStrMapStr

```go
func (ka *LkkArray) NewStrMapStr() map[string]string
```
NewStrMapStr 新建[字符-字符]字典.

#### func (*LkkArray) SliceFill

```go
func (ka *LkkArray) SliceFill(val interface{}, num int) []interface{}
```
SliceFill 用给定的值val填充切片,num为插入元素的数量.

#### func (*LkkArray) SlicePop

```go
func (ka *LkkArray) SlicePop(s *[]interface{}) interface{}
```
SlicePop 弹出切片最后一个元素(出栈),并返回该元素.

#### func (*LkkArray) SlicePush

```go
func (ka *LkkArray) SlicePush(s *[]interface{}, elements ...interface{}) int
```
SlicePush 将一个或多个元素压入切片的末尾(入栈),返回处理之后切片的元素个数.

#### func (*LkkArray) SliceShift

```go
func (ka *LkkArray) SliceShift(s *[]interface{}) interface{}
```
SliceShift 将切片开头的元素移出,并返回该元素.

#### func (*LkkArray) SliceUnshift

```go
func (ka *LkkArray) SliceUnshift(s *[]interface{}, elements ...interface{}) int
```
SliceUnshift 在切片开头插入一个或多个元素,返回处理之后切片的元素个数.

#### func (*LkkArray) Unique64Ints

```go
func (ka *LkkArray) Unique64Ints(ints []int64) (res []int64)
```
Unique64Ints 移除64位整数切片中的重复值.

#### func (*LkkArray) UniqueInts

```go
func (ka *LkkArray) UniqueInts(ints []int) (res []int)
```
UniqueInts 移除整数切片中的重复值.

#### func (*LkkArray) UniqueStrings

```go
func (ka *LkkArray) UniqueStrings(strs []string) (res []string)
```
UniqueStrings 移除字符串切片中的重复值.

#### type LkkCaseSwitch

```go
type LkkCaseSwitch uint8
```

LkkCaseSwitch 枚举类型,大小写开关

#### type LkkConvert

```go
type LkkConvert struct {
}
```

LkkConvert is the receiver of convert utilities

#### func (*LkkConvert) BaseConvert

```go
func (kc *LkkConvert) BaseConvert(num string, frombase, tobase int) (string, error)
```
BaseConvert 进制转换,在任意进制之间转换数字. num为输入数值,frombase为原进制,tobase为结果进制.

#### func (*LkkConvert) Bin2Dec

```go
func (kc *LkkConvert) Bin2Dec(str string) (int64, error)
```
Bin2Dec 将二进制字符串转换为十进制.

#### func (*LkkConvert) Bin2Hex

```go
func (kc *LkkConvert) Bin2Hex(str string) (string, error)
```
Bin2Hex 将二进制字符串转换为十六进制字符串.

#### func (*LkkConvert) Bool2Int

```go
func (kc *LkkConvert) Bool2Int(val bool) int
```
Bool2Int 将布尔值转换为整型.

#### func (*LkkConvert) Bool2Str

```go
func (kc *LkkConvert) Bool2Str(val bool) string
```
Bool2Str 将布尔值转换为字符串.

#### func (*LkkConvert) Byte2Float64

```go
func (kc *LkkConvert) Byte2Float64(bytes []byte) float64
```
Byte2Float64 字节切片转64位浮点数.

#### func (*LkkConvert) Byte2Hex

```go
func (kc *LkkConvert) Byte2Hex(val []byte) string
```
Byte2Hex 字节切片转16进制字符串.

#### func (*LkkConvert) Byte2Hexs

```go
func (kc *LkkConvert) Byte2Hexs(val []byte) []byte
```
Byte2Hexs 字节切片转16进制切片.

#### func (*LkkConvert) Byte2Int64

```go
func (kc *LkkConvert) Byte2Int64(val []byte) int64
```
Byte2Int64 字节切片转64位整型.

#### func (*LkkConvert) Bytes2Str

```go
func (kc *LkkConvert) Bytes2Str(val []byte) string
```
Bytes2Str 将字节切片转换为字符串.

#### func (*LkkConvert) Bytes2StrUnsafe

```go
func (kc *LkkConvert) Bytes2StrUnsafe(val []byte) string
```
Bytes2StrUnsafe (非安全的)将字节切片转换为字符串.
零拷贝,不安全.效率是string([]byte{})的百倍以上,且转换量越大效率优势越明显.

#### func (*LkkConvert) Dec2Bin

```go
func (kc *LkkConvert) Dec2Bin(num int64) string
```
Dec2Bin 将十进制转换为二进制字符串.

#### func (*LkkConvert) Dec2Hex

```go
func (kc *LkkConvert) Dec2Hex(num int64) string
```
Dec2Hex 将十进制转换为十六进制.

#### func (*LkkConvert) Dec2Oct

```go
func (kc *LkkConvert) Dec2Oct(num int64) string
```
Dec2Oct 将十进制转换为八进制.

#### func (*LkkConvert) Float2Str

```go
func (kc *LkkConvert) Float2Str(val interface{}, decimal int) string
```
Float2Str 将浮点数转换为字符串,decimal为小数位数.

#### func (*LkkConvert) Float64ToByte

```go
func (kc *LkkConvert) Float64ToByte(val float64) []byte
```
Float64ToByte 64位浮点数转字节切片.

#### func (*LkkConvert) Hex2Bin

```go
func (kc *LkkConvert) Hex2Bin(str string) (string, error)
```
Hex2Bin 将十六进制字符串转换为二进制字符串.

#### func (*LkkConvert) Hex2Byte

```go
func (kc *LkkConvert) Hex2Byte(str string) []byte
```
Hex2Byte 16进制字符串转字节切片.

#### func (*LkkConvert) Hex2Dec

```go
func (kc *LkkConvert) Hex2Dec(str string) (int64, error)
```
Hex2Dec 将十六进制转换为十进制.

#### func (*LkkConvert) Hexs2Byte

```go
func (kc *LkkConvert) Hexs2Byte(val []byte) []byte
```
Hexs2Byte 16进制切片转byte切片.

#### func (*LkkConvert) Int2Str

```go
func (kc *LkkConvert) Int2Str(val interface{}) string
```
Int2Str 将整数转换为字符串.

#### func (*LkkConvert) Int64ToByte

```go
func (kc *LkkConvert) Int64ToByte(val int64) []byte
```
Int64ToByte 64位整型转字节切片.

#### func (*LkkConvert) Ip2Long

```go
func (kc *LkkConvert) Ip2Long(ipAddress string) uint32
```
Ip2Long 将 IPV4 的字符串互联网协议转换成长整型数字.

#### func (*LkkConvert) IsBinary

```go
func (kc *LkkConvert) IsBinary(s string) bool
```
IsBinary 字符串是否二进制.

#### func (*LkkConvert) IsBool

```go
func (kc *LkkConvert) IsBool(val interface{}) bool
```
IsBool 是否布尔值.

#### func (*LkkConvert) IsByte

```go
func (kc *LkkConvert) IsByte(val interface{}) bool
```
IsByte 变量是否字节切片.

#### func (*LkkConvert) IsEmpty

```go
func (kc *LkkConvert) IsEmpty(val interface{}) bool
```
IsEmpty 变量是否为空.

#### func (*LkkConvert) IsFloat

```go
func (kc *LkkConvert) IsFloat(val interface{}) bool
```
IsFloat 变量是否浮点数值.

#### func (*LkkConvert) IsHex

```go
func (kc *LkkConvert) IsHex(str string) bool
```
IsHex 是否十六进制字符串.

#### func (*LkkConvert) IsInt

```go
func (kc *LkkConvert) IsInt(val interface{}) bool
```
IsInt 变量是否整型数值.

#### func (*LkkConvert) IsInterface

```go
func (kc *LkkConvert) IsInterface(val interface{}) bool
```
IsInterface 变量是否接口.

#### func (*LkkConvert) IsNil

```go
func (kc *LkkConvert) IsNil(val interface{}) bool
```
IsNil 变量是否nil.

#### func (*LkkConvert) IsNumeric

```go
func (kc *LkkConvert) IsNumeric(val interface{}) bool
```
IsNumeric 变量是否数值(不包含复数和科学计数法).

#### func (*LkkConvert) IsPort

```go
func (kc *LkkConvert) IsPort(val interface{}) bool
```
IsPort 变量值是否端口号(1~65535).

#### func (*LkkConvert) IsString

```go
func (kc *LkkConvert) IsString(val interface{}) bool
```
IsString 变量是否字符串.

#### func (*LkkConvert) IsStruct

```go
func (kc *LkkConvert) IsStruct(val interface{}) bool
```
IsStruct 变量是否结构体.

#### func (*LkkConvert) Long2Ip

```go
func (kc *LkkConvert) Long2Ip(properAddress uint32) string
```
Long2Ip 将长整型转化为字符串形式带点的互联网标准格式地址(IPV4).

#### func (*LkkConvert) Oct2Dec

```go
func (kc *LkkConvert) Oct2Dec(str string) (int64, error)
```
Oct2Dec 将八进制转换为十进制.

#### func (*LkkConvert) Runes2Bytes

```go
func (kc *LkkConvert) Runes2Bytes(rs []rune) []byte
```
Runes2Bytes 将[]rune转为[]byte.

#### func (*LkkConvert) Str2Bool

```go
func (kc *LkkConvert) Str2Bool(val string) bool
```
Str2Bool 将字符串转换为布尔值. 1, t, T, TRUE, true, True 等字符串为真; 0, f, F, FALSE, false,
False 等字符串为假.

#### func (*LkkConvert) Str2Bytes

```go
func (kc *LkkConvert) Str2Bytes(val string) []byte
```
Str2Bytes 将字符串转换为字节切片.

#### func (*LkkConvert) Str2BytesUnsafe

```go
func (kc *LkkConvert) Str2BytesUnsafe(val string) []byte
```
Str2BytesUnsafe (非安全的)将字符串转换为字节切片. 该方法零拷贝,但不安全.它直接转换底层指针,两者指向的相同的内存,改一个另外一个也会变.
仅当临时需将长字符串转换且不长时间保存时可以使用. 转换之后若没做其他操作直接改变里面的字符,则程序会崩溃. 如
b:=Str2BytesUnsafe("xxx"); b[1]='d'; 程序将panic.

#### func (*LkkConvert) Str2Float32

```go
func (kc *LkkConvert) Str2Float32(val string) float32
```
Str2Float32 将字符串转换为float32;其中"true", "TRUE", "True"为1.0 .

#### func (*LkkConvert) Str2Float64

```go
func (kc *LkkConvert) Str2Float64(val string) float64
```
Str2Float64 将字符串转换为float64;其中"true", "TRUE", "True"为1.0 .

#### func (*LkkConvert) Str2Int

```go
func (kc *LkkConvert) Str2Int(val string) int
```
Str2Int 将字符串转换为int.其中"true", "TRUE", "True"为1;若为浮点字符串,则取整数部分.

#### func (*LkkConvert) Str2Int16

```go
func (kc *LkkConvert) Str2Int16(val string) int16
```
Str2Int16 将字符串转换为int16.

#### func (*LkkConvert) Str2Int32

```go
func (kc *LkkConvert) Str2Int32(val string) int32
```
Str2Int32 将字符串转换为int32.

#### func (*LkkConvert) Str2Int64

```go
func (kc *LkkConvert) Str2Int64(val string) int64
```
Str2Int64 将字符串转换为int64.

#### func (*LkkConvert) Str2Int8

```go
func (kc *LkkConvert) Str2Int8(val string) int8
```
Str2Int8 将字符串转换为int8.

#### func (*LkkConvert) Str2Uint

```go
func (kc *LkkConvert) Str2Uint(val string) uint
```
Str2Uint 将字符串转换为uint.其中"true", "TRUE", "True"为1;若为浮点字符串,则取整数部分;若为负值则取0.

#### func (*LkkConvert) Str2Uint16

```go
func (kc *LkkConvert) Str2Uint16(val string) uint16
```
Str2Uint16 将字符串转换为uint16.

#### func (*LkkConvert) Str2Uint32

```go
func (kc *LkkConvert) Str2Uint32(val string) uint32
```
Str2Uint32 将字符串转换为uint32.

#### func (*LkkConvert) Str2Uint64

```go
func (kc *LkkConvert) Str2Uint64(val string) uint64
```
Str2Uint64 将字符串转换为uint64.

#### func (*LkkConvert) Str2Uint8

```go
func (kc *LkkConvert) Str2Uint8(val string) uint8
```
Str2Uint8 将字符串转换为uint8.

#### func (*LkkConvert) Struct2Map

```go
func (kc *LkkConvert) Struct2Map(obj interface{}, tagName string) (map[string]interface{}, error)
```
Struct2Map 结构体转为字典;tagName为要导出的标签名,可以为空,为空时将导出所有字段.

#### func (*LkkConvert) ToBool

```go
func (kc *LkkConvert) ToBool(val interface{}) bool
```
ToBool 强制将变量转换为布尔值. 数值类型将检查值是否>0; 字符串将使用Str2Bool; 数组、切片、字典、通道类型将检查它们的长度是否>0;
指针、结构体类型为true,其他为false.

#### func (*LkkConvert) ToFloat

```go
func (kc *LkkConvert) ToFloat(val interface{}) (res float64)
```
ToFloat 强制将变量转换为浮点型. 数值类型将转为浮点型; 字符串将使用Str2Float64; 布尔型的true为1.0,false为0;
数组、切片、字典、通道类型将取它们的长度; 指针、结构体类型为1.0,其他为0.

#### func (*LkkConvert) ToInt

```go
func (kc *LkkConvert) ToInt(val interface{}) int
```
ToInt 强制将变量转换为整型. 数值类型将转为整型; 字符串类型将使用Str2Int; 布尔型的true为1,false为0;
数组、切片、字典、通道类型将取它们的长度; 指针、结构体类型为1,其他为0.

#### func (*LkkConvert) ToStr

```go
func (kc *LkkConvert) ToStr(val interface{}) string
```
ToStr 强制将变量转换为字符串.

#### type LkkDebug

```go
type LkkDebug struct {
}
```

LkkDebug is the receiver of debug utilities

#### func (*LkkDebug) CallMethod

```go
func (kd *LkkDebug) CallMethod(t interface{}, method string, args ...interface{}) ([]interface{}, error)
```
CallMethod 调用对象的方法. 若执行成功,则结果是该方法的返回结果; 否则返回(nil, error).

#### func (*LkkDebug) DumpPrint

```go
func (ks *LkkDebug) DumpPrint(vs ...interface{})
```
DumpPrint 打印调试变量.

#### func (*LkkDebug) DumpStacks

```go
func (kd *LkkDebug) DumpStacks()
```
DumpStacks 打印堆栈信息.

#### func (*LkkDebug) GetCallDir

```go
func (kd *LkkDebug) GetCallDir() string
```
GetCallDir 获取调用方法的文件目录.

#### func (*LkkDebug) GetCallFile

```go
func (kd *LkkDebug) GetCallFile() string
```
GetCallFile 获取调用方法的文件路径.

#### func (*LkkDebug) GetCallLine

```go
func (kd *LkkDebug) GetCallLine() int
```
GetCallLine 获取调用方法的行号.

#### func (*LkkDebug) GetCallName

```go
func (kd *LkkDebug) GetCallName(f interface{}, onlyFun bool) string
```
GetCallName 获取调用的方法名称;f为目标方法;onlyFun为true时仅返回方法,不包括包名.

#### func (*LkkDebug) GetCallPackage

```go
func (kd *LkkDebug) GetCallPackage(callFile ...string) string
```
GetCallPackage 获取调用方法或调用文件的包名.callFile为调用文件路径.

#### func (*LkkDebug) GetFuncNames

```go
func (kd *LkkDebug) GetFuncNames(obj interface{}) (res []string)
```
GetFuncNames 获取变量的所有(公开的)函数名.

#### func (*LkkDebug) GetMethod

```go
func (kd *LkkDebug) GetMethod(t interface{}, method string) interface{}
```
GetMethod 获取对象t中的method方法. 注意:返回的方法中的第一个参数是接收者. 所以,调用返回的方法时,必须将接收者作为第一个参数传递.

#### func (*LkkDebug) HasMethod

```go
func (kd *LkkDebug) HasMethod(t interface{}, method string) bool
```
HasMethod 检查对象t是否具有method方法.

#### type LkkEncrypt

```go
type LkkEncrypt struct {
}
```

LkkEncrypt is the receiver of encrypt utilities

#### func (*LkkEncrypt) AesCBCDecrypt

```go
func (ke *LkkEncrypt) AesCBCDecrypt(cipherText, key []byte, paddingType ...LkkPKCSType) ([]byte, error)
```
AesCBCDecrypt AES-CBC密码分组链接(Cipher-block chaining)模式解密.
cipherText为密文;key为密钥,长16/24/32;paddingType为填充方式,枚举(PKCS_NONE,PKCS_ZERO,PKCS_SEVEN),默认PKCS_SEVEN.

#### func (*LkkEncrypt) AesCBCEncrypt

```go
func (ke *LkkEncrypt) AesCBCEncrypt(clearText, key []byte, paddingType ...LkkPKCSType) ([]byte, error)
```
AesCBCEncrypt AES-CBC密码分组链接(Cipher-block chaining)模式加密.加密无法并行,不适合对流数据加密.
clearText为明文;key为密钥,长16/24/32;paddingType为填充方式,枚举(PKCS_ZERO,PKCS_SEVEN),默认PKCS_SEVEN.

#### func (*LkkEncrypt) AesCFBDecrypt

```go
func (ke *LkkEncrypt) AesCFBDecrypt(cipherText, key []byte) ([]byte, error)
```
AesCFBDecrypt AES-CFB密文反馈(Cipher feedback)模式解密. cipherText为密文;key为密钥,长16/24/32.

#### func (*LkkEncrypt) AesCFBEncrypt

```go
func (ke *LkkEncrypt) AesCFBEncrypt(clearText, key []byte) ([]byte, error)
```
AesCFBEncrypt AES-CFB密文反馈(Cipher feedback)模式加密.适合对流数据加密.
clearText为明文;key为密钥,长16/24/32.

#### func (*LkkEncrypt) AesCTRDecrypt

```go
func (ke *LkkEncrypt) AesCTRDecrypt(cipherText, key []byte) ([]byte, error)
```
AesCTRDecrypt AES-CTR计算器(Counter)模式解密. cipherText为密文;key为密钥,长16/24/32.

#### func (*LkkEncrypt) AesCTREncrypt

```go
func (ke *LkkEncrypt) AesCTREncrypt(clearText, key []byte) ([]byte, error)
```
AesCTREncrypt AES-CTR计算器(Counter)模式加密. clearText为明文;key为密钥,长16/24/32.

#### func (*LkkEncrypt) AesOFBDecrypt

```go
func (ke *LkkEncrypt) AesOFBDecrypt(cipherText, key []byte) ([]byte, error)
```
AesOFBDecrypt AES-OFB输出反馈(Output feedback)模式解密. cipherText为密文;key为密钥,长16/24/32.

#### func (*LkkEncrypt) AesOFBEncrypt

```go
func (ke *LkkEncrypt) AesOFBEncrypt(clearText, key []byte) ([]byte, error)
```
AesOFBEncrypt AES-OFB输出反馈(Output feedback)模式加密.适合对流数据加密.
clearText为明文;key为密钥,长16/24/32.

#### func (*LkkEncrypt) AuthCode

```go
func (ke *LkkEncrypt) AuthCode(str, key []byte, encode bool, expiry int64) ([]byte, int64)
```
AuthCode 授权码编码或解码;encode为true时编码,为false解码;expiry为有效期,秒;返回结果为加密/解密的字符串和有效期时间戳.

#### func (*LkkEncrypt) Base64Decode

```go
func (ke *LkkEncrypt) Base64Decode(str []byte) ([]byte, error)
```
Base64Decode 对使用 MIME base64 编码的数据进行解码.

#### func (*LkkEncrypt) Base64Encode

```go
func (ke *LkkEncrypt) Base64Encode(str []byte) []byte
```
Base64Encode 使用 MIME base64 对数据进行编码.

#### func (*LkkEncrypt) Base64UrlDecode

```go
func (ke *LkkEncrypt) Base64UrlDecode(str []byte) ([]byte, error)
```
Base64UrlDecode url安全的Base64Decode.

#### func (*LkkEncrypt) Base64UrlEncode

```go
func (ke *LkkEncrypt) Base64UrlEncode(str []byte) []byte
```
Base64UrlSafeEncode url安全的Base64Encode,没有'/'和'+'及结尾的'=' .

#### func (*LkkEncrypt) EasyDecrypt

```go
func (ke *LkkEncrypt) EasyDecrypt(val, key []byte) []byte
```
EasyDecrypt 简单解密. val为待解密的字符串,key为密钥.

#### func (*LkkEncrypt) EasyEncrypt

```go
func (ke *LkkEncrypt) EasyEncrypt(data, key []byte) []byte
```
EasyEncrypt 简单加密. data为要加密的原字符串,key为密钥.

#### func (*LkkEncrypt) GenerateRsaKeys

```go
func (ke *LkkEncrypt) GenerateRsaKeys(bits int) (private []byte, public []byte, err error)
```
GenerateRsaKeys 生成RSA密钥对.bits为密钥位数,通常为1024或2048.

#### func (*LkkEncrypt) HmacShaX

```go
func (ke *LkkEncrypt) HmacShaX(data, secret []byte, x uint16) []byte
```
HmacShaX HmacSHA-x加密,x为1/256/512 .

#### func (*LkkEncrypt) PasswordHash

```go
func (ke *LkkEncrypt) PasswordHash(password []byte, costs ...int) ([]byte, error)
```
PasswordHash 创建密码的散列值;costs为算法的cost,范围4~31,默认10;注意:值越大越耗时.

#### func (*LkkEncrypt) PasswordVerify

```go
func (ke *LkkEncrypt) PasswordVerify(password, hash []byte) bool
```
PasswordVerify 验证密码是否和散列值匹配.

#### func (*LkkEncrypt) RsaPrivateDecrypt

```go
func (ke *LkkEncrypt) RsaPrivateDecrypt(cipherText, privateKey []byte) ([]byte, error)
```
RsaPrivateDecrypt RSA私钥解密.比加密耗时. cipherText为密文,privateKey为私钥.

#### func (*LkkEncrypt) RsaPrivateEncrypt

```go
func (ke *LkkEncrypt) RsaPrivateEncrypt(clearText, privateKey []byte) ([]byte, error)
```
RsaPrivateEncrypt RSA私钥加密.比解密耗时. clearText为明文,privateKey为私钥.

#### func (*LkkEncrypt) RsaPublicDecrypt

```go
func (ke *LkkEncrypt) RsaPublicDecrypt(cipherText, publicKey []byte) ([]byte, error)
```
RsaPublicDecrypt RSA公钥解密. cipherText为密文,publicKey为公钥.

#### func (*LkkEncrypt) RsaPublicEncrypt

```go
func (ke *LkkEncrypt) RsaPublicEncrypt(clearText, publicKey []byte) ([]byte, error)
```
RsaPublicEncrypt RSA公钥加密. clearText为明文,publicKey为公钥.

#### type LkkFile

```go
type LkkFile struct {
}
```

LkkFile is the receiver of file utilities

#### func (*LkkFile) AbsPath

```go
func (kf *LkkFile) AbsPath(fpath string) string
```
AbsPath 获取绝对路径,path可允许不存在.

#### func (*LkkFile) AppendFile

```go
func (kf *LkkFile) AppendFile(fpath string, data []byte) error
```
AppendFile 插入文件内容.

#### func (*LkkFile) Basename

```go
func (kf *LkkFile) Basename(fpath string) string
```
Basename 返回路径中的文件名部分(包括后缀),空路径时返回".".

#### func (*LkkFile) ChmodBatch

```go
func (kf *LkkFile) ChmodBatch(fpath string, filemode, dirmode os.FileMode) (res bool)
```
ChmodBatch 批量改变路径权限模式(包括子目录和所属文件). filemode为文件权限模式,dirmode为目录权限模式.

#### func (*LkkFile) CopyDir

```go
func (kf *LkkFile) CopyDir(source string, dest string, cover LkkFileCover) (int64, error)
```
CopyDir 拷贝源目录到目标目录,cover为枚举(FILE_COVER_ALLOW、FILE_COVER_IGNORE、FILE_COVER_DENY).

#### func (*LkkFile) CopyFile

```go
func (kf *LkkFile) CopyFile(source string, dest string, cover LkkFileCover) (int64, error)
```
CopyFile
拷贝源文件到目标文件,cover为枚举(FILE_COVER_ALLOW、FILE_COVER_IGNORE、FILE_COVER_DENY).

#### func (*LkkFile) CopyLink

```go
func (kf *LkkFile) CopyLink(source string, dest string) error
```
CopyLink 拷贝链接.

#### func (*LkkFile) CountLines

```go
func (kf *LkkFile) CountLines(fpath string, buffLength int) (int, error)
```
CountLines 统计文件行数.buffLength为缓冲长度,kb.

#### func (*LkkFile) DelDir

```go
func (kf *LkkFile) DelDir(dir string, delete bool) error
```
DelDir 删除目录.delete为true时连该目录一起删除;为false时只清空该目录.

#### func (*LkkFile) DirSize

```go
func (kf *LkkFile) DirSize(fpath string) int64
```
DirSize 获取目录大小(bytes字节).

#### func (*LkkFile) Dirname

```go
func (kf *LkkFile) Dirname(fpath string) string
```
Dirname 返回路径中的目录部分,注意空路径或无目录的返回".".

#### func (*LkkFile) FastCopy

```go
func (kf *LkkFile) FastCopy(source string, dest string) (int64, error)
```
FastCopy 快速拷贝源文件到目标文件,不做安全检查.

#### func (*LkkFile) FileSize

```go
func (kf *LkkFile) FileSize(fpath string) int64
```
FileSize 获取文件大小(bytes字节);注意:文件不存在或无法访问时返回-1 .

#### func (*LkkFile) FileTree

```go
func (kf *LkkFile) FileTree(fpath string, ftype LkkFileTree, recursive bool, filters ...FileFilter) []string
```
FileTree 获取目录的文件树列表. ftype为枚举(FILE_TREE_ALL、FILE_TREE_DIR、FILE_TREE_FILE);
recursive为是否递归; filters为一个或多个文件过滤器函数,FileFilter类型.

#### func (*LkkFile) FormatDir

```go
func (kf *LkkFile) FormatDir(fpath string) string
```
FormatDir 格式化目录,将"\","//"替换为"/",且以"/"结尾.

#### func (*LkkFile) FormatPath

```go
func (kf *LkkFile) FormatPath(fpath string) string
```
FormatPath 格式化路径.

#### func (*LkkFile) GetExt

```go
func (kf *LkkFile) GetExt(fpath string) string
```
GetExt 获取文件的小写扩展名,不包括点"." .

#### func (*LkkFile) GetFileMode

```go
func (kf *LkkFile) GetFileMode(fpath string) (os.FileMode, error)
```
GetFileMode 获取路径的权限模式.

#### func (*LkkFile) GetMime

```go
func (kf *LkkFile) GetMime(fpath string, fast bool) string
```
GetMime 获取文件mime类型;fast为true时根据后缀快速获取;为false时读取文件头获取.

#### func (*LkkFile) GetModTime

```go
func (kf *LkkFile) GetModTime(fpath string) (res int64)
```
GetModTime 获取文件的修改时间戳,秒.

#### func (*LkkFile) Glob

```go
func (kf *LkkFile) Glob(pattern string) ([]string, error)
```
Glob 寻找与模式匹配的文件路径.

#### func (*LkkFile) Img2Base64

```go
func (kf *LkkFile) Img2Base64(fpath string) (string, error)
```
Img2Base64 读取图片文件,并转换为base64字符串.

#### func (*LkkFile) IsBinary

```go
func (kf *LkkFile) IsBinary(fpath string) bool
```
IsBinary 是否二进制文件(且存在).

#### func (*LkkFile) IsDir

```go
func (kf *LkkFile) IsDir(fpath string) bool
```
IsDir 是否目录(且存在).

#### func (*LkkFile) IsExecutable

```go
func (kf *LkkFile) IsExecutable(fpath string) bool
```
IsExecutable 是否可执行文件.

#### func (*LkkFile) IsExist

```go
func (kf *LkkFile) IsExist(fpath string) bool
```
IsExist 路径(文件/目录)是否存在.

#### func (*LkkFile) IsFile

```go
func (kf *LkkFile) IsFile(fpath string, ftype ...LkkFileType) (res bool)
```
IsFile 是否(某类型)文件,且存在.
ftype为枚举(FILE_TYPE_ANY、FILE_TYPE_LINK、FILE_TYPE_REGULAR、FILE_TYPE_COMMON),默认FILE_TYPE_ANY;

#### func (*LkkFile) IsImg

```go
func (kf *LkkFile) IsImg(fpath string) bool
```
IsImg 是否图片文件(仅检查后缀).

#### func (*LkkFile) IsLink

```go
func (kf *LkkFile) IsLink(fpath string) bool
```
IsLink 是否链接文件(软链接,且存在).

#### func (*LkkFile) IsReadable

```go
func (kf *LkkFile) IsReadable(fpath string) bool
```
IsReadable 路径是否可读.

#### func (*LkkFile) IsWritable

```go
func (kf *LkkFile) IsWritable(fpath string) bool
```
IsWritable 路径是否可写.

#### func (*LkkFile) IsZip

```go
func (kf *LkkFile) IsZip(fpath string) bool
```
IsZip 是否zip文件.

#### func (*LkkFile) Md5

```go
func (kf *LkkFile) Md5(fpath string, length uint8) (string, error)
```
Md5 获取文件md5值,length指定结果长度32/16.

#### func (*LkkFile) Mkdir

```go
func (kf *LkkFile) Mkdir(fpath string, mode os.FileMode) error
```
Mkdir 创建目录,允许多级.

#### func (*LkkFile) Pathinfo

```go
func (kf *LkkFile) Pathinfo(fpath string, option int) map[string]string
```
Pathinfo 获取文件路径的信息. option为要返回的信息,枚举值如下: -1: all; 1: dirname; 2: basename; 4:
extension; 8: filename; 若要查看某几项,则为它们之间的和.

#### func (*LkkFile) ReadFile

```go
func (kf *LkkFile) ReadFile(fpath string) ([]byte, error)
```
ReadFile 读取文件内容.

#### func (*LkkFile) ReadFirstLine

```go
func (kf *LkkFile) ReadFirstLine(fpath string) []byte
```
ReadFirstLine 读取文件首行.

#### func (*LkkFile) ReadInArray

```go
func (kf *LkkFile) ReadInArray(fpath string) ([]string, error)
```
ReadInArray 把整个文件读入一个数组中,每行作为一个元素.

#### func (*LkkFile) ReadLastLine

```go
func (kf *LkkFile) ReadLastLine(fpath string) []byte
```
ReadLastLine 读取文件末行.

#### func (*LkkFile) RealPath

```go
func (kf *LkkFile) RealPath(fpath string) string
```
RealPath 返回规范化的真实绝对路径名.path必须存在,若路径不存在则返回空字符串.

#### func (*LkkFile) Rename

```go
func (kf *LkkFile) Rename(oldname, newname string) error
```
Rename 重命名(或移动)文件/目录.

#### func (*LkkFile) SafeFileName

```go
func (kf *LkkFile) SafeFileName(str string) string
```
SafeFileName 将文件名转换为安全可用的字符串.

#### func (*LkkFile) ShaX

```go
func (kf *LkkFile) ShaX(fpath string, x uint16) (string, error)
```
ShaX 计算文件的 shaX 散列值,x为1/256/512.

#### func (*LkkFile) TarGz

```go
func (kf *LkkFile) TarGz(src string, dstTar string, ignorePatterns ...string) (bool, error)
```
TarGz 打包压缩tar.gz. src为源文件或目录,dstTar为打包的路径名,ignorePatterns为要忽略的文件正则.

#### func (*LkkFile) Touch

```go
func (kf *LkkFile) Touch(fpath string, size int64) bool
```
Touch 快速创建指定大小的文件,size为字节.

#### func (*LkkFile) UnTarGz

```go
func (kf *LkkFile) UnTarGz(srcTar, dstDir string) (bool, error)
```
UnTarGz 将tar.gz文件解压缩. srcTar为压缩包,dstDir为解压目录.

#### func (*LkkFile) UnZip

```go
func (kf *LkkFile) UnZip(srcZip, dstDir string) (bool, error)
```
UnZip 解压zip文件.srcZip为zip文件路径,dstDir为解压目录.

#### func (*LkkFile) Unlink

```go
func (kf *LkkFile) Unlink(fpath string) error
```
Unlink 删除文件.

#### func (*LkkFile) WriteFile

```go
func (kf *LkkFile) WriteFile(fpath string, data []byte, perm ...os.FileMode) error
```
WriteFile 将内容写入文件. fpath为文件路径;data为内容;perm为权限,默认为0655.

#### func (*LkkFile) Zip

```go
func (kf *LkkFile) Zip(dst string, fpaths ...string) (bool, error)
```
Zip 将文件或目录进行zip打包.fpaths为源文件或目录的路径.

#### type LkkFileCover

```go
type LkkFileCover int8
```

LkkFileCover 枚举类型,文件是否覆盖

#### type LkkFileTree

```go
type LkkFileTree uint8
```

LkkFileTree 枚举类型,文件树查找类型

#### type LkkFileType

```go
type LkkFileType uint8
```

LkkFileType 枚举类型,文件类型

#### type LkkNumber

```go
type LkkNumber struct {
}
```

LkkNumber is the receiver of number utilities

#### func (*LkkNumber) AbsFloat

```go
func (kn *LkkNumber) AbsFloat(number float64) float64
```
AbsFloat 浮点型取绝对值.

#### func (*LkkNumber) AbsInt

```go
func (kn *LkkNumber) AbsInt(number int64) int64
```
AbsInt 整型取绝对值.

#### func (*LkkNumber) Average

```go
func (kn *LkkNumber) Average(nums ...interface{}) (res float64)
```
Average 对任意类型序列中的数值类型求平均值,忽略非数值的.

#### func (*LkkNumber) AverageFloat64

```go
func (kn *LkkNumber) AverageFloat64(nums ...float64) (res float64)
```
AverageFloat64 对浮点数序列求平均值.

#### func (*LkkNumber) AverageInt

```go
func (kn *LkkNumber) AverageInt(nums ...int) (res float64)
```
AverageInt 对整数序列求平均值.

#### func (*LkkNumber) ByteFormat

```go
func (kn *LkkNumber) ByteFormat(size float64, decimal uint8, delimiter string) string
```
ByteFormat 格式化文件比特大小. size为文件大小,decimal为要保留的小数位数,delimiter为数字和单位间的分隔符.

#### func (*LkkNumber) Ceil

```go
func (kn *LkkNumber) Ceil(value float64) float64
```
Ceil 向上取整.

#### func (*LkkNumber) Exp

```go
func (kn *LkkNumber) Exp(x float64) float64
```
Exp 计算 e 的指数.

#### func (*LkkNumber) Expm1

```go
func (kn *LkkNumber) Expm1(x float64) float64
```
Expm1 返回 exp(x) - 1.

#### func (*LkkNumber) FloatEqual

```go
func (kn *LkkNumber) FloatEqual(f1 float64, f2 float64, decimal ...uint8) (res bool)
```
FloatEqual 比较两个浮点数是否相等.decimal为小数精确位数,默认为 FLOAT_DECIMAL .
有效数值是长度(包括小数点)为17位之内的数值,最后一位会四舍五入.

#### func (*LkkNumber) Floor

```go
func (kn *LkkNumber) Floor(value float64) float64
```
Floor 向下取整.

#### func (*LkkNumber) GeoDistance

```go
func (kn *LkkNumber) GeoDistance(lng1, lat1, lng2, lat2 float64) float64
```
GeoDistance 获取地理距离/米. 参数分别为两点的经度和纬度:lat:-90~90,lng:-180~180.

#### func (*LkkNumber) InRange

```go
func (kn *LkkNumber) InRange(value interface{}, left interface{}, right interface{}) bool
```
InRange 数值是否在某个范围内,将自动转换类型再比较.

#### func (*LkkNumber) InRangeFloat32

```go
func (kn *LkkNumber) InRangeFloat32(value, left, right float32) bool
```
InRangeFloat32 数值是否在2个32位浮点数范围内.

#### func (*LkkNumber) InRangeFloat64

```go
func (kn *LkkNumber) InRangeFloat64(value, left, right float64) bool
```
InRangeFloat64 数值是否在2个64位浮点数范围内.

#### func (*LkkNumber) InRangeInt

```go
func (kn *LkkNumber) InRangeInt(value, left, right int) bool
```
InRangeInt 数值是否在2个整数范围内.

#### func (*LkkNumber) IsEven

```go
func (kn *LkkNumber) IsEven(val int) bool
```
IsEven 变量是否偶数.

#### func (*LkkNumber) IsNan

```go
func (kn *LkkNumber) IsNan(val interface{}) bool
```
IsNan 是否为“非数值”.注意,这里复数也算“非数值”.

#### func (*LkkNumber) IsNatural

```go
func (kn *LkkNumber) IsNatural(value float64) bool
```
IsNatural 数值是否为自然数(包括0).

#### func (*LkkNumber) IsNaturalRange

```go
func (kn *LkkNumber) IsNaturalRange(arr []int, strict bool) (res bool)
```
IsNaturalRange 是否连续的自然数数组/切片,如[0,1,2,3...],其中不能有间断. strict为是否严格检查元素的顺序.

#### func (*LkkNumber) IsNegative

```go
func (kn *LkkNumber) IsNegative(value float64) bool
```
IsNegative 数值是否为负数.

#### func (*LkkNumber) IsNonNegative

```go
func (kn *LkkNumber) IsNonNegative(value float64) bool
```
IsNonNegative 数值是否为非负数.

#### func (*LkkNumber) IsNonPositive

```go
func (kn *LkkNumber) IsNonPositive(value float64) bool
```
IsNonPositive 数值是否为非正数.

#### func (*LkkNumber) IsOdd

```go
func (kn *LkkNumber) IsOdd(val int) bool
```
IsOdd 变量是否奇数.

#### func (*LkkNumber) IsPositive

```go
func (kn *LkkNumber) IsPositive(value float64) bool
```
IsPositive 数值是否为正数.

#### func (*LkkNumber) IsWhole

```go
func (kn *LkkNumber) IsWhole(value float64) bool
```
IsWhole 数值是否为整数.

#### func (*LkkNumber) Log

```go
func (kn *LkkNumber) Log(x, y float64) float64
```
Log 对数表达式,求以y为底x的对数.

#### func (*LkkNumber) Max

```go
func (kn *LkkNumber) Max(nums ...interface{}) (res float64)
```
Max 取出任意类型中数值类型的最大值,无数值类型则为0.

#### func (*LkkNumber) MaxFloat64

```go
func (kn *LkkNumber) MaxFloat64(nums ...float64) (res float64)
```
MaxFloat64 64位浮点数序列求最大值.

#### func (*LkkNumber) MaxInt

```go
func (kn *LkkNumber) MaxInt(nums ...int) (res int)
```
MaxInt 整数序列求最大值.

#### func (*LkkNumber) Min

```go
func (kn *LkkNumber) Min(nums ...interface{}) (res float64)
```
Min 取出任意类型中数值类型的最小值,无数值类型则为0.

#### func (*LkkNumber) MinFloat64

```go
func (kn *LkkNumber) MinFloat64(nums ...float64) (res float64)
```
MinFloat64 64位浮点数序列求最小值.

#### func (*LkkNumber) MinInt

```go
func (kn *LkkNumber) MinInt(nums ...int) (res int)
```
MinInt 整数序列求最小值.

#### func (*LkkNumber) NearLogarithm

```go
func (kn *LkkNumber) NearLogarithm(num, base int, left bool) int
```
NearLogarithm 求以 base 为底 num 的对数临近值. num为自然数,base为正整数,left是否向左取整.

#### func (*LkkNumber) NumSign

```go
func (kn *LkkNumber) NumSign(value float64) (res int8)
```
NumSign 返回数值的符号.值>0为1,<0为-1,其他为0.

#### func (*LkkNumber) NumberFormat

```go
func (kn *LkkNumber) NumberFormat(number float64, decimal uint8, point, thousand string) string
```
NumberFormat 以千位分隔符方式格式化一个数字.
decimal为要保留的小数位数,point为小数点显示的字符,thousand为千位分隔符显示的字符.
有效数值是长度(包括小数点)为17位之内的数值,最后一位会四舍五入.

#### func (*LkkNumber) Percent

```go
func (kn *LkkNumber) Percent(val, total interface{}) float64
```
Percent 返回百分比((val/total) *100).

#### func (*LkkNumber) Pow

```go
func (kn *LkkNumber) Pow(x, y float64) float64
```
Pow 指数表达式,求x的y次方.

#### func (*LkkNumber) Rand

```go
func (kn *LkkNumber) Rand(min, max int) int
```
Rand RandInt的别名.

#### func (*LkkNumber) RandFloat64

```go
func (kn *LkkNumber) RandFloat64(min, max float64) float64
```
RandFloat64 生成一个min~max范围内的随机float64浮点数.

#### func (*LkkNumber) RandInt

```go
func (kn *LkkNumber) RandInt(min, max int) int
```
RandInt 生成一个min~max范围内的随机int整数.

#### func (*LkkNumber) RandInt64

```go
func (kn *LkkNumber) RandInt64(min, max int64) int64
```
RandInt64 生成一个min~max范围内的随机int64整数.

#### func (*LkkNumber) Range

```go
func (kn *LkkNumber) Range(start, end int) []int
```
Range 根据范围创建数组,包含指定的元素.
start为起始元素值,end为末尾元素值.若start<end,返回升序的数组;若start>end,返回降序的数组.

#### func (*LkkNumber) Round

```go
func (kn *LkkNumber) Round(value float64) float64
```
Round 对浮点数(的整数)进行四舍五入.

#### func (*LkkNumber) RoundPlus

```go
func (kn *LkkNumber) RoundPlus(value float64, precision uint8) float64
```
RoundPlus 对指定的小数位进行四舍五入. precision为小数位数.

#### func (*LkkNumber) SplitNaturalNum

```go
func (kn *LkkNumber) SplitNaturalNum(num, base int) []int
```
SplitNaturalNum 将自然数 num 按底数 base 进行拆解.

#### func (*LkkNumber) Sum

```go
func (kn *LkkNumber) Sum(nums ...interface{}) (res float64)
```
Sum 对任意类型序列中的数值类型求和,忽略非数值的.

#### func (*LkkNumber) SumFloat64

```go
func (kn *LkkNumber) SumFloat64(nums ...float64) float64
```
SumFloat64 浮点数求和.

#### func (*LkkNumber) SumInt

```go
func (kn *LkkNumber) SumInt(nums ...int) int
```
SumInt 整数求和.

#### type LkkOS

```go
type LkkOS struct {
}
```

LkkOS is the receiver of OS utilities

#### func (*LkkOS) Chdir

```go
func (ko *LkkOS) Chdir(dir string) error
```
Chdir 改变/进入新的工作目录.

#### func (*LkkOS) Chmod

```go
func (ko *LkkOS) Chmod(filename string, mode os.FileMode) bool
```
Chmod 改变文件模式.

#### func (*LkkOS) Chown

```go
func (ko *LkkOS) Chown(filename string, uid, gid int) bool
```
Chown 改变文件的所有者.

#### func (*LkkOS) ClientIp

```go
func (ko *LkkOS) ClientIp(req *http.Request) string
```
ClientIp 获取客户端真实IP,req为http请求.

#### func (*LkkOS) CpuUsage

```go
func (ko *LkkOS) CpuUsage() (user, idle, total uint64)
```
CpuUsage 获取CPU使用率(darwin系统必须使用cgo),单位jiffies(节拍数). user为用户态(用户进程)的运行时间,
idle为空闲时间, total为累计时间.

#### func (*LkkOS) DiskUsage

```go
func (ko *LkkOS) DiskUsage(path string) (used, free, total uint64)
```
DiskUsage 获取磁盘(目录)使用情况,单位字节.参数path为路径. used为已用, free为空闲, total为总数.

#### func (*LkkOS) Exec

```go
func (ko *LkkOS) Exec(command string) (retInt int, outStr, errStr []byte)
```
Exec 执行一个外部命令. retInt为1时失败,为0时成功;outStr为执行命令的输出;errStr为错误输出. 命令如 "ls -a"
"/bin/bash -c \"ls -a\""

#### func (*LkkOS) ForceGC

```go
func (ko *LkkOS) ForceGC()
```
ForceGC 强制手动GC垃圾回收(阻塞).

#### func (*LkkOS) GetBiosInfo

```go
func (ko *LkkOS) GetBiosInfo() *BiosInfo
```
GetBiosInfo 获取BIOS信息. 注意:Mac机器没有BIOS信息,它使用EFI.

#### func (*LkkOS) GetBoardInfo

```go
func (ko *LkkOS) GetBoardInfo() *BoardInfo
```
GetBoardInfo 获取Board信息.

#### func (*LkkOS) GetCpuInfo

```go
func (ko *LkkOS) GetCpuInfo() *CpuInfo
```
GetCpuInfo 获取CPU信息.

#### func (*LkkOS) GetEndian

```go
func (ko *LkkOS) GetEndian() binary.ByteOrder
```
GetEndian 获取系统字节序类型,小端返回binary.LittleEndian,大端返回binary.BigEndian .

#### func (*LkkOS) GetHostByIp

```go
func (ko *LkkOS) GetHostByIp(ipAddress string) (string, error)
```
GetHostByIp 获取指定的IP地址对应的主机名.

#### func (*LkkOS) GetIPs

```go
func (ko *LkkOS) GetIPs() (ips []string)
```
GetIPs 获取本机的IP列表.

#### func (*LkkOS) GetIpByHostname

```go
func (ko *LkkOS) GetIpByHostname(hostname string) (string, error)
```
GetIpByHostname 返回主机名对应的 IPv4地址.

#### func (*LkkOS) GetIpsByDomain

```go
func (ko *LkkOS) GetIpsByDomain(domain string) ([]string, error)
```
GetIpsByHost 获取互联网域名/主机名对应的 IPv4 地址列表.

#### func (*LkkOS) GetMacAddrs

```go
func (ko *LkkOS) GetMacAddrs() (macAddrs []string)
```
GetMacAddrs 获取本机的Mac网卡地址列表.

#### func (*LkkOS) GetPidByPort

```go
func (ko *LkkOS) GetPidByPort(port int) (pid int)
```
GetPidByPort 根据端口号获取监听的进程PID. linux可能要求root权限; darwin依赖lsof; windows依赖netstat.

#### func (*LkkOS) GetProcessExecPath

```go
func (ko *LkkOS) GetProcessExecPath(pid int) string
```
GetProcessExecPath 根据PID获取进程的执行路径.

#### func (*LkkOS) GetSystemInfo

```go
func (ko *LkkOS) GetSystemInfo() *SystemInfo
```
GetSystemInfo 获取系统运行信息.

#### func (*LkkOS) GetTempDir

```go
func (ko *LkkOS) GetTempDir() string
```
GetTempDir 返回用于临时文件的目录.

#### func (*LkkOS) Getcwd

```go
func (ko *LkkOS) Getcwd() (string, error)
```
Getcwd 取得当前工作目录(程序可能在任务中进行多次目录切换).

#### func (*LkkOS) Getenv

```go
func (ko *LkkOS) Getenv(varname string, defvalue ...string) string
```
Getenv 获取一个环境变量的值.defvalue为默认值.

#### func (*LkkOS) GoMemory

```go
func (ko *LkkOS) GoMemory() uint64
```
MemoryGetUsage 获取当前go程序的内存使用,返回字节数.

#### func (*LkkOS) HomeDir

```go
func (ko *LkkOS) HomeDir() (string, error)
```
HomeDir 获取当前用户的主目录.

#### func (*LkkOS) Hostname

```go
func (ko *LkkOS) Hostname() (string, error)
```
Hostname 获取主机名.

#### func (*LkkOS) IsLinux

```go
func (ko *LkkOS) IsLinux() bool
```
IsLinux 当前操作系统是否Linux.

#### func (*LkkOS) IsLittleEndian

```go
func (ko *LkkOS) IsLittleEndian() bool
```
IsLittleEndian 系统字节序类型是否小端存储.

#### func (*LkkOS) IsMac

```go
func (ko *LkkOS) IsMac() bool
```
IsMac 当前操作系统是否Mac OS/X.

#### func (*LkkOS) IsPortOpen

```go
func (ko *LkkOS) IsPortOpen(host string, port interface{}, protocols ...string) bool
```
IsPortOpen 检查主机端口是否开放. host为主机名;port为(整型/字符串)端口号;protocols为协议名称,可选,默认tcp.

#### func (*LkkOS) IsPrivateIp

```go
func (ko *LkkOS) IsPrivateIp(str string) (bool, error)
```
IsPrivateIp 是否私有IP地址(ipv4/ipv6).

#### func (*LkkOS) IsProcessExists

```go
func (ko *LkkOS) IsProcessExists(pid int) (res bool)
```
IsProcessExists 进程是否存在.

#### func (*LkkOS) IsPublicIP

```go
func (ko *LkkOS) IsPublicIP(str string) (bool, error)
```
IsPublicIP 是否公网IPv4.

#### func (*LkkOS) IsWindows

```go
func (ko *LkkOS) IsWindows() bool
```
IsWindows 当前操作系统是否Windows.

#### func (*LkkOS) LocalIP

```go
func (ko *LkkOS) LocalIP() (string, error)
```
LocalIP 获取本机第一个NIC's IP.

#### func (*LkkOS) MemoryUsage

```go
func (ko *LkkOS) MemoryUsage(virtual bool) (used, free, total uint64)
```
MemoryUsage 获取内存使用率,单位字节. 参数 virtual(仅支持linux),是否取虚拟内存. used为已用, free为空闲,
total为总数.

#### func (*LkkOS) OutboundIP

```go
func (ko *LkkOS) OutboundIP() (string, error)
```
OutboundIP 获取本机的出口IP.

#### func (*LkkOS) PrivateCIDR

```go
func (ko *LkkOS) PrivateCIDR() []*net.IPNet
```
PrivateCIDR 获取私有网段的CIDR(无类别域间路由).

#### func (*LkkOS) Pwd

```go
func (ko *LkkOS) Pwd() string
```
Pwd 获取当前程序运行所在的路径,注意和Getwd有所不同. 若当前执行的是链接文件,则会指向真实二进制程序的所在目录.

#### func (*LkkOS) Setenv

```go
func (ko *LkkOS) Setenv(varname, data string) error
```
Setenv 设置一个环境变量的值.

#### func (*LkkOS) System

```go
func (ko *LkkOS) System(command string) (retInt int, outStr, errStr []byte)
```
System 与Exec相同,但会同时打印标准输出和标准错误.

#### func (*LkkOS) TriggerGC

```go
func (ko *LkkOS) TriggerGC()
```
TriggerGC 触发GC(非阻塞).

#### func (*LkkOS) Unsetenv

```go
func (ko *LkkOS) Unsetenv(varname string) error
```
Unsetenv 删除一个环境变量.

#### func (*LkkOS) Uptime

```go
func (ko *LkkOS) Uptime() (uint64, error)
```
Uptime 获取系统运行时间,秒.

#### type LkkPKCSType

```go
type LkkPKCSType int8
```

LkkPKCSType 枚举类型,PKCS填充类型

#### type LkkPadType

```go
type LkkPadType uint8
```

LkkPadType 枚举类型,字符串填充类型

#### type LkkRandString

```go
type LkkRandString uint8
```

LkkRandString 枚举类型,随机字符串类型

#### type LkkString

```go
type LkkString struct {
}
```

LkkString is the receiver of string utilities

#### func (*LkkString) Addslashes

```go
func (ks *LkkString) Addslashes(str string) string
```
Addslashes 使用反斜线引用字符串.

#### func (*LkkString) AtWho

```go
func (ks *LkkString) AtWho(text string, minLen ...int) []string
```
AtWho 查找被@的用户名.minLen为用户名最小长度,默认5.

#### func (*LkkString) Big5ToUtf8

```go
func (ks *LkkString) Big5ToUtf8(s []byte) ([]byte, error)
```
Big5ToUtf8 BIG5转UTF-8编码.

#### func (*LkkString) Br2nl

```go
func (ks *LkkString) Br2nl(str string) string
```
Br2nl 将br标签转换为换行符.

#### func (*LkkString) Chr

```go
func (ks *LkkString) Chr(chr uint) string
```
Chr 返回相对应于 ASCII 所指定的单个字符.

#### func (*LkkString) ChunkSplit

```go
func (ks *LkkString) ChunkSplit(str string, chunklen uint, end string) string
```
ChunkSplit 将字符串分割成小块.str为要分割的字符,chunklen为分割的尺寸,end为行尾序列符号.

#### func (*LkkString) ClearUrlPrefix

```go
func (ks *LkkString) ClearUrlPrefix(str string, prefix ...string) string
```
ClearUrlPrefix 清除URL的前缀; str为URL字符串,prefix为前缀,默认"/".

#### func (*LkkString) ClearUrlSuffix

```go
func (ks *LkkString) ClearUrlSuffix(str string, suffix ...string) string
```
ClearUrlSuffix 清除URL的后缀; str为URL字符串,suffix为后缀,默认"/".

#### func (*LkkString) ClosestWord

```go
func (ks *LkkString) ClosestWord(word string, searchs []string) (string, int)
```
ClosestWord 获取与原字符串相似度最高的字符串,以及它们的编辑距离. word为原字符串,searchs为待查找的字符串数组.

#### func (*LkkString) CountBase64Byte

```go
func (ks *LkkString) CountBase64Byte(str string) (res int)
```
CountBase64Byte 粗略统计base64字符串大小,字节.

#### func (*LkkString) CountWords

```go
func (ks *LkkString) CountWords(str string) (int, map[string]int)
```
CountWords 统计字符串中单词的使用情况. 返回结果:单词总数;和一个字典,包含每个单词的单独统计. 因为没有分词,对中文尚未很好支持.

#### func (*LkkString) Crc32

```go
func (ks *LkkString) Crc32(str string) uint32
```
Crc32 计算一个字符串的 crc32 多项式.

#### func (*LkkString) DBC2SBC

```go
func (ks *LkkString) DBC2SBC(s string) string
```
DBC2SBC 半角转全角.

#### func (*LkkString) DetectEncoding

```go
func (ks *LkkString) DetectEncoding(str string) (res string)
```
DetectEncoding 匹配字符编码,TODO.

#### func (*LkkString) Dstrpos

```go
func (ks *LkkString) Dstrpos(str string, arr []string, chkCase bool) (bool, string)
```
Dstrpos 检查字符串str是否包含数组arr的元素之一,返回检查结果和匹配的字符串. chkCase为是否检查大小写.

#### func (*LkkString) EndsWith

```go
func (ks *LkkString) EndsWith(str, sub string, ignoreCase bool) bool
```
EndsWith 字符串str是否以sub结尾.

#### func (*LkkString) EndsWiths

```go
func (ks *LkkString) EndsWiths(str string, subs []string, ignoreCase bool) (res bool)
```
EndsWiths 字符串str是否以subs其中之一为结尾.

#### func (*LkkString) Explode

```go
func (ks *LkkString) Explode(str string, delimiters ...string) (res []string)
```
Explode 字符串分割.delimiters为分隔符,可选,支持多个.

#### func (*LkkString) FirstLetter

```go
func (ks *LkkString) FirstLetter(str string) string
```
FirstLetter 获取字符串首字母.

#### func (*LkkString) FormatUrl

```go
func (ks *LkkString) FormatUrl(str string) string
```
FormatUrl 格式化URL.

#### func (*LkkString) GbkToUtf8

```go
func (ks *LkkString) GbkToUtf8(s []byte) ([]byte, error)
```
GbkToUtf8 GBK转UTF-8编码.

#### func (*LkkString) GetDomain

```go
func (ks *LkkString) GetDomain(str string, isMain ...bool) string
```
GetDomain 从URL字符串中获取域名.
可选参数isMain,默认为false,取完整域名;为true时,取主域名(如abc.test.com取test.com).

#### func (*LkkString) GetEquationValue

```go
func (ks *LkkString) GetEquationValue(str, name string) (res string)
```
GetEquationValue 获取等式str中变量name的值.

#### func (*LkkString) Gravatar

```go
func (ks *LkkString) Gravatar(email string, size uint16) string
```
Gravatar 获取Gravatar头像地址. email为邮箱;size为头像尺寸像素.

#### func (*LkkString) HasChinese

```go
func (ks *LkkString) HasChinese(str string) bool
```
HasChinese 字符串是否含有中文.

#### func (*LkkString) HasEmoji

```go
func (ks *LkkString) HasEmoji(str string) bool
```
HasEmoji 字符串是否含有表情符.

#### func (*LkkString) HasEnglish

```go
func (ks *LkkString) HasEnglish(str string) bool
```
HasEnglish 是否含有英文字符,HasLetter的别名.

#### func (*LkkString) HasFullWidth

```go
func (ks *LkkString) HasFullWidth(str string) bool
```
HasFullWidth 是否含有全角字符.

#### func (*LkkString) HasHalfWidth

```go
func (ks *LkkString) HasHalfWidth(str string) bool
```
HasHalfWidth 是否含有半角字符.

#### func (*LkkString) HasLetter

```go
func (ks *LkkString) HasLetter(str string) bool
```
HasLetter 字符串是否含有(英文)字母.

#### func (*LkkString) HasSpecialChar

```go
func (ks *LkkString) HasSpecialChar(str string) bool
```
HasSpecialChar 字符串是否含有特殊字符.

#### func (*LkkString) HasWhitespace

```go
func (ks *LkkString) HasWhitespace(str string) bool
```
HasWhitespace 是否带有空白字符.

#### func (*LkkString) HideCard

```go
func (ks *LkkString) HideCard(card string) string
```
HideCard 隐藏证件号码.

#### func (*LkkString) HideMobile

```go
func (ks *LkkString) HideMobile(mobile string) string
```
HideMobile 隐藏手机号.

#### func (*LkkString) HideTrueName

```go
func (ks *LkkString) HideTrueName(name string) string
```
HideTrueName 隐藏真实名称(如姓名、账号、公司等).

#### func (*LkkString) Html2Text

```go
func (ks *LkkString) Html2Text(str string) string
```
Html2Text 将html转换为纯文本.

#### func (*LkkString) Htmlentities

```go
func (ks *LkkString) Htmlentities(str string) string
```
Htmlentities 将字符转换为 HTML 转义字符.

#### func (*LkkString) HtmlentityDecode

```go
func (ks *LkkString) HtmlentityDecode(str string) string
```
HtmlentityDecode 将HTML实体转换为它们对应的字符.

#### func (*LkkString) HttpBuildQuery

```go
func (ks *LkkString) HttpBuildQuery(queryData url.Values) string
```
HttpBuildQuery 根据参数生成 URL-encode 之后的请求字符串.

#### func (*LkkString) Img2Base64

```go
func (ks *LkkString) Img2Base64(content []byte, ext ...string) string
```
Img2Base64 将图片字节转换为base64字符串.ext为图片扩展名,默认jpg.

#### func (*LkkString) Index

```go
func (ks *LkkString) Index(str, sub string, ignoreCase bool) int
```
Index 查找子串sub在字符串str中第一次出现的位置,不存在则返回-1; ignoreCase为是否忽略大小写.

#### func (*LkkString) IsASCII

```go
func (ks *LkkString) IsASCII(str string) bool
```
IsASCII 是否ASCII字符串.

#### func (*LkkString) IsAlphaNumeric

```go
func (ks *LkkString) IsAlphaNumeric(str string) bool
```
IsAlphaNumeric 是否字母或数字.

#### func (*LkkString) IsBase64

```go
func (ks *LkkString) IsBase64(str string) bool
```
IsBase64 是否base64字符串.

#### func (*LkkString) IsBase64Image

```go
func (ks *LkkString) IsBase64Image(str string) bool
```
IsBase64Image 是否base64编码的图片.

#### func (*LkkString) IsBlank

```go
func (ks *LkkString) IsBlank(str string) bool
```
IsBlank 是否空(空白)字符串.

#### func (*LkkString) IsChinese

```go
func (ks *LkkString) IsChinese(str string) bool
```
IsChinese 字符串是否全部中文.

#### func (*LkkString) IsChineseName

```go
func (ks *LkkString) IsChineseName(str string) bool
```
IsChineseName 字符串是否中文名称.

#### func (*LkkString) IsCreditNo

```go
func (ks *LkkString) IsCreditNo(str string) (bool, string)
```
IsCreditNo 检查是否(15或18位)身份证号码,并返回经校验的号码.

#### func (*LkkString) IsDNSName

```go
func (ks *LkkString) IsDNSName(str string) bool
```
IsDNSName 是否DNS名称.

#### func (*LkkString) IsDialAddr

```go
func (ks *LkkString) IsDialAddr(str string) bool
```
IsDialAddr 是否网络拨号地址(形如127.0.0.1:80),用于net.Dial()检查.

#### func (*LkkString) IsEmail

```go
func (ks *LkkString) IsEmail(email string, validateHost bool) (bool, error)
```
IsEmail 检查字符串是否邮箱.参数validateTrue,是否验证邮箱主机的真实性.

#### func (*LkkString) IsEmpty

```go
func (ks *LkkString) IsEmpty(str string) bool
```
IsEmpty 字符串是否为空(包括空格).

#### func (*LkkString) IsEnglish

```go
func (ks *LkkString) IsEnglish(str string, letterCase LkkCaseSwitch) bool
```
IsEnglish 字符串是否纯英文.letterCase是否检查大小写,枚举值(CASE_NONE,CASE_LOWER,CASE_UPPER).

#### func (*LkkString) IsGbk

```go
func (ks *LkkString) IsGbk(s []byte) (res bool)
```
IsGbk 字符串是否GBK编码.

#### func (*LkkString) IsHexcolor

```go
func (ks *LkkString) IsHexcolor(str string) (bool, string)
```
IsHexcolor 检查是否十六进制颜色,并返回带"#"的修正值.

#### func (*LkkString) IsHost

```go
func (ks *LkkString) IsHost(str string) bool
```
IsHost 字符串是否主机名(IP或DNS名称).

#### func (*LkkString) IsIP

```go
func (ks *LkkString) IsIP(str string) bool
```
IsIP 检查字符串是否IP地址.

#### func (*LkkString) IsIPv4

```go
func (ks *LkkString) IsIPv4(str string) bool
```
IsIPv4 检查字符串是否IPv4地址.

#### func (*LkkString) IsIPv6

```go
func (ks *LkkString) IsIPv6(str string) bool
```
IsIPv6 检查字符串是否IPv6地址.

#### func (*LkkString) IsJSON

```go
func (ks *LkkString) IsJSON(str string) bool
```
IsJSON 字符串是否合法的json格式.

#### func (*LkkString) IsLetters

```go
func (ks *LkkString) IsLetters(str string) bool
```
IsLetters 字符串是否全(英文)字母组成.

#### func (*LkkString) IsLower

```go
func (ks *LkkString) IsLower(str string) bool
```
IsLower 字符串是否全部小写.

#### func (*LkkString) IsMACAddr

```go
func (ks *LkkString) IsMACAddr(str string) bool
```
IsMACAddr 是否MAC物理网卡地址.

#### func (*LkkString) IsMd5

```go
func (ks *LkkString) IsMd5(str string) bool
```
IsMd5 是否md5值.

#### func (*LkkString) IsMobilecn

```go
func (ks *LkkString) IsMobilecn(str string) bool
```
IsMobilecn 检查字符串是否中国大陆手机号.

#### func (*LkkString) IsMultibyte

```go
func (ks *LkkString) IsMultibyte(str string) bool
```
IsMultibyte 字符串是否含有多字节字符.

#### func (*LkkString) IsNumeric

```go
func (ks *LkkString) IsNumeric(str string) bool
```
IsNumeric 字符串是否数值(不包含复数和科学计数法).

#### func (*LkkString) IsPhone

```go
func (ks *LkkString) IsPhone(str string) bool
```
IsPhone 是否电话号码(手机或固话).

#### func (*LkkString) IsRGBcolor

```go
func (ks *LkkString) IsRGBcolor(str string) bool
```
IsRGBcolor 检查字符串是否RGB颜色格式.

#### func (*LkkString) IsRsaPublicKey

```go
func (ks *LkkString) IsRsaPublicKey(str string, keylen uint16) bool
```
IsRsaPublicKey 检查字符串是否RSA的公钥,keylen为密钥长度.

#### func (*LkkString) IsSha1

```go
func (ks *LkkString) IsSha1(str string) bool
```
IsSha1 是否Sha1值.

#### func (*LkkString) IsSha256

```go
func (ks *LkkString) IsSha256(str string) bool
```
IsSha256 是否Sha256值.

#### func (*LkkString) IsSha512

```go
func (ks *LkkString) IsSha512(str string) bool
```
IsSha512 是否Sha512值.

#### func (*LkkString) IsTel

```go
func (ks *LkkString) IsTel(str string) bool
```
IsTel 是否固定电话或400/800电话.

#### func (*LkkString) IsUpper

```go
func (ks *LkkString) IsUpper(str string) bool
```
IsUpper 字符串是否全部大写.

#### func (*LkkString) IsUrl

```go
func (ks *LkkString) IsUrl(str string) bool
```
IsUrl 检查字符串是否URL.

#### func (*LkkString) IsUrlExists

```go
func (ks *LkkString) IsUrlExists(str string) bool
```
IsUrlExists 检查URL是否存在.

#### func (*LkkString) IsUtf8

```go
func (ks *LkkString) IsUtf8(s []byte) bool
```
IsUtf8 字符串是否UTF-8编码.

#### func (*LkkString) IsWhitespaces

```go
func (ks *LkkString) IsWhitespaces(str string) bool
```
IsWhitespaces 是否全部空白字符,不包括空字符串.

#### func (*LkkString) IsWord

```go
func (ks *LkkString) IsWord(str string) bool
```
IsWord 是否词语(不以下划线开头的中文、英文、数字、下划线).

#### func (*LkkString) JsonDecode

```go
func (ks *LkkString) JsonDecode(str []byte, res interface{}) error
```
JsonDecode 对 JSON 格式的str字符串进行解码,注意res使用指针. 依赖库github.com/json-iterator/go.

#### func (*LkkString) JsonEncode

```go
func (ks *LkkString) JsonEncode(val interface{}) ([]byte, error)
```
JsonEncode 对val变量进行 JSON 编码. 依赖库github.com/json-iterator/go.

#### func (*LkkString) Jsonp2Json

```go
func (ks *LkkString) Jsonp2Json(str string) (string, error)
```
Jsonp2Json 将jsonp转为json串. Example: forbar({a:"1",b:2}) to {"a":"1","b":2}

#### func (*LkkString) LastIndex

```go
func (ks *LkkString) LastIndex(str, sub string, ignoreCase bool) int
```
LastIndex 查找子串sub在字符串str中最后一次出现的位置,不存在则返回-1; ignoreCase为是否忽略大小写.

#### func (*LkkString) Lcfirst

```go
func (ks *LkkString) Lcfirst(str string) string
```
Lcfirst 将字符串的第一个字符转换为小写.

#### func (*LkkString) Lcwords

```go
func (ks *LkkString) Lcwords(str string) string
```
Lcwords 将字符串中每个词的首字母转换为小写.

#### func (*LkkString) Levenshtein

```go
func (ks *LkkString) Levenshtein(a, b string) int
```
Levenshtein 计算两个字符串之间的编辑距离,返回值越小字符串越相似. 注意字符串最大长度为255.

#### func (*LkkString) Ltrim

```go
func (ks *LkkString) Ltrim(str string, characterMask ...string) string
```
Ltrim 删除字符串开头的空白字符（或其他字符）. characterMask为要修剪的字符.

#### func (*LkkString) MatchEquations

```go
func (ks *LkkString) MatchEquations(str string) (res []string)
```
MatchEquations 匹配字符串中所有的等式.

#### func (*LkkString) MbStrlen

```go
func (ks *LkkString) MbStrlen(str string) int
```
MbStrlen 获取宽字符串的长度,多字节的字符被计为 1.

#### func (*LkkString) MbSubstr

```go
func (ks *LkkString) MbSubstr(str string, start int, length ...int) string
```
MbSubstr 返回(宽字符)字符串str的子串. start 为起始位置.若值是负数,返回的结果将从 str 结尾处向前数第 abs(start)
个字符开始. length 为截取的长度.若值时负数, str 末尾处的 abs(length) 个字符将会被省略.
start/length的绝对值必须<=原字符串长度.

#### func (*LkkString) Md5

```go
func (ks *LkkString) Md5(str string, length ...uint8) string
```
Md5 获取字符串md5值. length指定结果长度,默认32.

#### func (*LkkString) Md5Byte

```go
func (ks *LkkString) Md5Byte(str []byte, length ...uint8) []byte
```
Md5 获取字节切片md5值. length指定结果长度,默认32.

#### func (*LkkString) Nl2br

```go
func (ks *LkkString) Nl2br(str string) string
```
Nl2br 将换行符转换为br标签.

#### func (*LkkString) Ord

```go
func (ks *LkkString) Ord(char string) rune
```
Ord 将首字符转换为rune(ASCII值). 注意:当字符串为空时返回65533.

#### func (*LkkString) ParseStr

```go
func (ks *LkkString) ParseStr(encodedString string, result map[string]interface{}) error
```
ParseStr 将URI查询字符串转换为字典.

#### func (*LkkString) ParseUrl

```go
func (ks *LkkString) ParseUrl(str string, component int16) (map[string]string, error)
```
ParseUrl 解析URL,返回其组成部分. component为需要返回的组成; -1: all; 1: scheme; 2: host; 4: port;
8: user; 16: pass; 32: path; 64: query; 128: fragment .

#### func (*LkkString) Quotemeta

```go
func (ks *LkkString) Quotemeta(str string) string
```
Quotemeta 转义元字符集,包括 . \ + * ? [ ^ ] ( $ )等.

#### func (*LkkString) Random

```go
func (ks *LkkString) Random(length uint8, rtype LkkRandString) string
```
Random 生成随机字符串. length为长度,rtype为枚举: RAND_STRING_ALPHA 字母; RAND_STRING_NUMERIC
数值; RAND_STRING_ALPHANUM 字母+数值; RAND_STRING_SPECIAL 字母+数值+特殊字符;
RAND_STRING_CHINESE 仅中文.

#### func (*LkkString) RawUrlDecode

```go
func (ks *LkkString) RawUrlDecode(str string) (string, error)
```
RawUrlDecode 对已编码的 URL 字符串进行解码.

#### func (*LkkString) RawUrlEncode

```go
func (ks *LkkString) RawUrlEncode(str string) string
```
RawUrlEncode 按照 RFC 3986 对 URL 进行编码.

#### func (*LkkString) RemoveAfter

```go
func (ks *LkkString) RemoveAfter(str, after string, include, ignoreCase bool) string
```
RemoveAfter 移除after之后的字符串; include为是否移除包括after本身; ignoreCase为是否忽略大小写.

#### func (*LkkString) RemoveBefore

```go
func (ks *LkkString) RemoveBefore(str, before string, include, ignoreCase bool) string
```
RemoveBefore 移除before之前的字符串; include为是否移除包括before本身; ignoreCase为是否忽略大小写.

#### func (*LkkString) RemoveEmoji

```go
func (ks *LkkString) RemoveEmoji(str string) string
```
RemoveEmoji 移除字符串中的表情符(使用正则,效率较低).

#### func (*LkkString) RemoveSpace

```go
func (ks *LkkString) RemoveSpace(str string, all bool) string
```
RemoveSpace 移除字符串中的空白字符. all为true时移除全部空白,为false时只替换连续的空白字符为一个空格.

#### func (*LkkString) Reverse

```go
func (ks *LkkString) Reverse(str string) string
```
Reverse 反转字符串.

#### func (*LkkString) Rtrim

```go
func (ks *LkkString) Rtrim(str string, characterMask ...string) string
```
Rtrim 删除字符串末端的空白字符（或者其他字符）. characterMask为要修剪的字符.

#### func (*LkkString) SBC2DBC

```go
func (ks *LkkString) SBC2DBC(s string) string
```
SBC2DBC 全角转半角.

#### func (*LkkString) Serialize

```go
func (ks *LkkString) Serialize(val interface{}) ([]byte, error)
```
Serialize 对变量进行序列化.

#### func (*LkkString) ShaX

```go
func (ks *LkkString) ShaX(str string, x uint16) string
```
ShaX 计算字符串的 shaX 散列值,x为1/256/512 .

#### func (*LkkString) ShaXByte

```go
func (ks *LkkString) ShaXByte(str []byte, x uint16) []byte
```
ShaXByte 计算字节切片的 shaX 散列值,x为1/256/512 .

#### func (*LkkString) Shuffle

```go
func (ks *LkkString) Shuffle(str string) string
```
Shuffle 随机打乱字符串.

#### func (*LkkString) SimilarText

```go
func (ks *LkkString) SimilarText(first, second string) (res int, percent float64)
```
SimilarText 计算两个字符串的相似度;返回在两个字符串中匹配字符的数目,以及相似程度百分数.

#### func (*LkkString) StartsWith

```go
func (ks *LkkString) StartsWith(str, sub string, ignoreCase bool) bool
```
StartsWith 字符串str是否以sub开头.

#### func (*LkkString) StartsWiths

```go
func (ks *LkkString) StartsWiths(str string, subs []string, ignoreCase bool) (res bool)
```
StartsWiths 字符串str是否以subs其中之一为开头.

#### func (*LkkString) StripTags

```go
func (ks *LkkString) StripTags(str string) string
```
StripTags 过滤html标签.

#### func (*LkkString) Stripos

```go
func (ks *LkkString) Stripos(haystack, needle string, offset int) int
```
Stripos 查找字符串首次出现的位置（不区分大小写）,找不到时返回-1. haystack在该字符串中进行查找,needle要查找的字符串;
offset起始位置,为负数时时,搜索会从字符串结尾指定字符数开始.

#### func (*LkkString) Stripslashes

```go
func (ks *LkkString) Stripslashes(str string) string
```
Stripslashes 反引用一个引用字符串.

#### func (*LkkString) Strlen

```go
func (ks *LkkString) Strlen(str string) int
```
Strlen 获取字符串长度.

#### func (*LkkString) Strpad

```go
func (ks *LkkString) Strpad(str string, fill string, max int, ptype LkkPadType) string
```
Strpad 使用fill填充str字符串到指定长度max. ptype为填充类型,枚举值(PAD_LEFT,PAD_RIGHT,PAD_BOTH).

#### func (*LkkString) StrpadBoth

```go
func (ks *LkkString) StrpadBoth(str string, fill string, max int) string
```
StrpadBoth 字符串两侧填充,请参考Strpad.

#### func (*LkkString) StrpadLeft

```go
func (ks *LkkString) StrpadLeft(str string, fill string, max int) string
```
StrpadLeft 字符串左侧填充,请参考Strpad.

#### func (*LkkString) StrpadRight

```go
func (ks *LkkString) StrpadRight(str string, fill string, max int) string
```
StrpadRight 字符串右侧填充,请参考Strpad.

#### func (*LkkString) Strpos

```go
func (ks *LkkString) Strpos(haystack, needle string, offset int) int
```
Strpos 查找字符串首次出现的位置,找不到时返回-1. haystack在该字符串中进行查找,needle要查找的字符串;
offset起始位置,为负数时时,搜索会从字符串结尾指定字符数开始.

#### func (*LkkString) Strripos

```go
func (ks *LkkString) Strripos(haystack, needle string, offset int) int
```
Strripos 查找指定字符串在目标字符串中最后一次出现的位置（不区分大小写）.

#### func (*LkkString) Strrpos

```go
func (ks *LkkString) Strrpos(haystack, needle string, offset int) int
```
Strrpos 查找指定字符串在目标字符串中最后一次出现的位置.

#### func (*LkkString) Substr

```go
func (ks *LkkString) Substr(str string, start int, length ...int) string
```
Substr 截取字符串str的子串. start 为起始位置.若值是负数,返回的结果将从 str 结尾处向前数第 abs(start) 个字符开始.
length 为截取的长度.若值时负数, str 末尾处的 abs(length) 个字符将会被省略. start/length的绝对值必须<=原字符串长度.

#### func (*LkkString) SubstrCount

```go
func (ks *LkkString) SubstrCount(str, substr string) int
```
SubstrCount 计算子串substr在字符串str中出现的次数,区分大小写.

#### func (*LkkString) SubstriCount

```go
func (ks *LkkString) SubstriCount(str, substr string) int
```
SubstriCount 计算子串substr在字符串str中出现的次数,忽略大小写.

#### func (*LkkString) ToCamelCase

```go
func (ks *LkkString) ToCamelCase(str string) string
```
ToCamelCase 转为驼峰写法. 去掉包括下划线"_"和横杠"-".

#### func (*LkkString) ToKebabCase

```go
func (ks *LkkString) ToKebabCase(str string) string
```
ToSnakeCase 转为串形写法. 使用横杠"-"连接.

#### func (*LkkString) ToSnakeCase

```go
func (ks *LkkString) ToSnakeCase(str string) string
```
ToSnakeCase 转为蛇形写法. 使用下划线"_"连接.

#### func (*LkkString) Trim

```go
func (ks *LkkString) Trim(str string, characterMask ...string) string
```
Trim 去除字符串首尾处的空白字符（或者其他字符）. characterMask为要修剪的字符.

#### func (*LkkString) TrimBOM

```go
func (ks *LkkString) TrimBOM(str []byte) []byte
```
TrimBOM 移除字符串中的BOM

#### func (*LkkString) Ucfirst

```go
func (ks *LkkString) Ucfirst(str string) string
```
Ucfirst 将字符串的第一个字符转换为大写.

#### func (*LkkString) Ucwords

```go
func (ks *LkkString) Ucwords(str string) string
```
Ucwords 将字符串中每个词的首字母转换为大写.

#### func (*LkkString) UnSerialize

```go
func (ks *LkkString) UnSerialize(data []byte, register ...interface{}) (val interface{}, err error)
```
UnSerialize 对字符串进行反序列化. 其中register注册对象,其类型必须和Serialize的一致.

#### func (*LkkString) Uniqid

```go
func (ks *LkkString) Uniqid(prefix string) string
```
Uniqid 获取一个带前缀的唯一ID(24位). prefix 为前缀字符串.

#### func (*LkkString) UrlDecode

```go
func (ks *LkkString) UrlDecode(str string) (string, error)
```
UrlDecode 解码已编码的 URL 字符串.

#### func (*LkkString) UrlEncode

```go
func (ks *LkkString) UrlEncode(str string) string
```
UrlEncode 编码 URL 字符串.

#### func (*LkkString) Utf8ToBig5

```go
func (ks *LkkString) Utf8ToBig5(s []byte) ([]byte, error)
```
Utf8ToBig5 UTF-8转BIG5编码.

#### func (*LkkString) Utf8ToGbk

```go
func (ks *LkkString) Utf8ToGbk(s []byte) ([]byte, error)
```
Utf8ToGbk UTF-8转GBK编码.

#### func (*LkkString) UuidV4

```go
func (ks *LkkString) UuidV4() (string, error)
```
UuidV4 获取36位UUID(Version4).

#### func (*LkkString) VersionCompare

```go
func (ks *LkkString) VersionCompare(version1, version2, operator string) (bool, error)
```
VersionCompare 对比两个版本号字符串. operator允许的操作符有: <, lt, <=, le, >, gt, >=, ge, ==, =,
eq, !=, <>, ne . 特定的版本字符串，将会用以下顺序处理： 无 < dev < alpha = a < beta = b < RC = rc <
# < pl = p < ga < release = r 用法: VersionCompare("1.2.3-alpha", "1.2.3RC7",
'>=') ; VersionCompare("1.2.3-beta", "1.2.3pl", 'lt') ;
VersionCompare("1.1_dev", "1.2any", 'eq') .

#### type LkkTime

```go
type LkkTime struct {
}
```

LkkTime is the receiver of time utilities

#### func (*LkkTime) CheckDate

```go
func (kt *LkkTime) CheckDate(year, month, day int) bool
```
CheckDate 检查是否正常的日期.

#### func (*LkkTime) Date

```go
func (kt *LkkTime) Date(format string, ts ...interface{}) string
```
Date 格式化时间. format 格式,如"Y-m-d H:i:s". ts为int/int64类型时间戳或time.Time类型.

#### func (*LkkTime) Day

```go
func (kt *LkkTime) Day(t ...time.Time) int
```
Day 获取日份.

#### func (*LkkTime) DaysBetween

```go
func (kt *LkkTime) DaysBetween(fromDate, toDate time.Time) int
```
DaysBetween 获取两个日期的间隔天数. fromDate 为开始时间,toDate 为终点时间.

#### func (*LkkTime) EndOfDay

```go
func (kt *LkkTime) EndOfDay(date time.Time) time.Time
```
EndOfDay 获取日期中当天的结束时间.

#### func (*LkkTime) EndOfMonth

```go
func (kt *LkkTime) EndOfMonth(date time.Time) time.Time
```
EndOfMonth 获取日期中当月的结束时间.

#### func (*LkkTime) EndOfWeek

```go
func (kt *LkkTime) EndOfWeek(date time.Time, weekStartDay ...time.Weekday) time.Time
```
EndOfWeek 获取日期中当周的结束时间; weekStartDay 周几作为周的第一天,本库默认周一.

#### func (*LkkTime) EndOfYear

```go
func (kt *LkkTime) EndOfYear(date time.Time) time.Time
```
EndOfYear 获取日期中当年的结束时间.

#### func (*LkkTime) GetMonthDays

```go
func (kt *LkkTime) GetMonthDays(month int, year ...int) (days int)
```
GetMonthDays 获取指定月份的天数.year年份,可选,默认当前年份.

#### func (*LkkTime) Hour

```go
func (kt *LkkTime) Hour(t ...time.Time) int
```
Hour 获取小时.

#### func (*LkkTime) IsDate2time

```go
func (kt *LkkTime) IsDate2time(str string) (bool, int64)
```
IsDate2time 检查字符串是否日期格式,并转换为时间戳.注意,时间戳可能为负数(小于1970年时). 匹配如:

    0000
    0000-00
    0000/00
    0000-00-00
    0000/00/00
    0000-00-00 00
    0000/00/00 00
    0000-00-00 00:00
    0000/00/00 00:00
    0000-00-00 00:00:00
    0000/00/00 00:00:00

等日期格式.

#### func (*LkkTime) MicroTime

```go
func (kt *LkkTime) MicroTime() int64
```
MicroTime 获取当前Unix时间戳(微秒,16位).

#### func (*LkkTime) MilliTime

```go
func (kt *LkkTime) MilliTime() int64
```
MilliTime 获取当前Unix时间戳(毫秒,13位).

#### func (*LkkTime) Minute

```go
func (kt *LkkTime) Minute(t ...time.Time) int
```
Minute 获取分钟.

#### func (*LkkTime) Month

```go
func (kt *LkkTime) Month(t ...time.Time) int
```
Month 获取月份.

#### func (*LkkTime) Second

```go
func (kt *LkkTime) Second(t ...time.Time) int
```
Second 获取秒数.

#### func (*LkkTime) ServiceStartime

```go
func (kt *LkkTime) ServiceStartime() int64
```
ServiceStartime 获取当前服务启动时间戳,秒.

#### func (*LkkTime) ServiceUptime

```go
func (kt *LkkTime) ServiceUptime() time.Duration
```
ServiceUptime 获取当前服务运行时间,纳秒int64.

#### func (*LkkTime) Sleep

```go
func (kt *LkkTime) Sleep(t int64)
```
Sleep 延缓执行,秒.

#### func (*LkkTime) StartOfDay

```go
func (kt *LkkTime) StartOfDay(date time.Time) time.Time
```
StartOfDay 获取日期中当天的开始时间.

#### func (*LkkTime) StartOfMonth

```go
func (kt *LkkTime) StartOfMonth(date time.Time) time.Time
```
StartOfMonth 获取日期中当月的开始时间.

#### func (*LkkTime) StartOfWeek

```go
func (kt *LkkTime) StartOfWeek(date time.Time, weekStartDay ...time.Weekday) time.Time
```
StartOfWeek 获取日期中当周的开始时间; weekStartDay 周几作为周的第一天,本库默认周一.

#### func (*LkkTime) StartOfYear

```go
func (kt *LkkTime) StartOfYear(date time.Time) time.Time
```
StartOfYear 获取日期中当年的开始时间.

#### func (*LkkTime) Str2Timestamp

```go
func (kt *LkkTime) Str2Timestamp(str string, format ...string) (int64, error)
```
Str2Timestamp 将字符串转换为时间戳,秒. str 为要转换的字符串; format 为该字符串的格式,默认为"2006-01-02
15:04:05" .

#### func (*LkkTime) Str2Timestruct

```go
func (kt *LkkTime) Str2Timestruct(str string, format ...string) (time.Time, error)
```
Str2Time 将字符串转换为时间结构. str 为要转换的字符串; format 为该字符串的格式,默认为"2006-01-02 15:04:05" .

#### func (*LkkTime) UnixTime

```go
func (kt *LkkTime) UnixTime() int64
```
Time 获取当前Unix时间戳(秒,10位).

#### func (*LkkTime) Usleep

```go
func (kt *LkkTime) Usleep(t int64)
```
Usleep 以指定的微秒数延迟执行.

#### func (*LkkTime) Year

```go
func (kt *LkkTime) Year(t ...time.Time) int
```
Year 获取年份.

#### type SystemInfo

```go
type SystemInfo struct {
	ServerName   string  `json:"server_name"`    //服务器名称
	SystemOs     string  `json:"system_os"`      //操作系统名称
	Runtime      uint64  `json:"run_time"`       //服务运行时间,纳秒
	Uptime       uint64  `json:"up_time"`        //操作系统运行时间,秒
	GoroutineNum int     `json:"goroutine_num"`  //goroutine数量
	CpuNum       int     `json:"cpu_num"`        //cpu核数
	CpuUser      float64 `json:"cpu_user"`       //cpu用户态比率
	CpuFree      float64 `json:"cpu_free"`       //cpu空闲比率
	DiskUsed     uint64  `json:"disk_used"`      //已用磁盘空间,字节数
	DiskFree     uint64  `json:"disk_free"`      //可用磁盘空间,字节数
	DiskTotal    uint64  `json:"disk_total"`     //总磁盘空间,字节数
	MemUsed      uint64  `json:"mem_used"`       //已用内存,字节数
	MemSys       uint64  `json:"mem_sys"`        //系统内存占用量,字节数
	MemFree      uint64  `json:"mem_free"`       //剩余内存,字节数
	MemTotal     uint64  `json:"mem_total"`      //总内存,字节数
	AllocGolang  uint64  `json:"alloc_golang"`   //golang内存使用量,字节数
	AllocTotal   uint64  `json:"alloc_total"`    //总分配的内存,字节数
	Lookups      uint64  `json:"lookups"`        //指针查找次数
	Mallocs      uint64  `json:"mallocs"`        //内存分配次数
	Frees        uint64  `json:"frees"`          //内存释放次数
	LastGCTime   uint64  `json:"last_gc_time"`   //上次GC时间,纳秒
	NextGC       uint64  `json:"next_gc"`        //下次GC内存回收量,字节数
	PauseTotalNs uint64  `json:"pause_total_ns"` //GC暂停时间总量,纳秒
	PauseNs      uint64  `json:"pause_ns"`       //上次GC暂停时间,纳秒
}
```

SystemInfo 系统信息

#### type Win32_Process

```go
type Win32_Process struct {
	Name                  string
	ExecutablePath        *string
	CommandLine           *string
	Priority              uint32
	CreationDate          *time.Time
	ProcessId             uint32
	ThreadCount           uint32
	Status                *string
	ReadOperationCount    uint64
	ReadTransferCount     uint64
	WriteOperationCount   uint64
	WriteTransferCount    uint64
	CSCreationClassName   string
	CSName                string
	Caption               *string
	CreationClassName     string
	Description           *string
	ExecutionState        *uint16
	HandleCount           uint32
	KernelModeTime        uint64
	MaximumWorkingSetSize *uint32
	MinimumWorkingSetSize *uint32
	OSCreationClassName   string
	OSName                string
	OtherOperationCount   uint64
	OtherTransferCount    uint64
	PageFaults            uint32
	PageFileUsage         uint32
	ParentProcessID       uint32
	PeakPageFileUsage     uint32
	PeakVirtualSize       uint64
	PeakWorkingSetSize    uint32
	PrivatePageCount      uint64
	TerminationDate       *time.Time
	UserModeTime          uint64
	WorkingSetSize        uint64
}
```