github.com/PandaGoAdmin/utils@v0.0.0-20211208134815-d5461603a00f/docs/v0.1.4.md

# kgo

    import "github.com/PandaGoAdmin/utils"


## Usage

```go
const (
	// Version 版本号
	Version = "0.1.4"

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

	//UINT64_MAX 无符号整型uint64最大值, 18446744073709551615
	UINT64_MAX = ^uint64(0)
	//UINT64_MIN 无符号整型uint64最小值
	UINT64_MIN 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

	//INT64_MAX 有符号整型int64最大值, 9223372036854775807
	INT64_MAX = int64(^uint(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 = 10

	//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-字母和数字
	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-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"}

	// 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)
)
```

#### func  CallFunc

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

#### func  ValidFunc

```go
func ValidFunc(f interface{}, args ...interface{}) (vf reflect.Value, vargs []reflect.Value, err error)
```
ValidFunc 检查是否函数,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 byte
```

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)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) ArrayFill

```go
func (ka *LkkArray) ArrayFill(value interface{}, num int) []interface{}
```
ArrayFill 用给定的值value填充数组,num为插入元素的数量.

#### 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 检查数组里是否有指定的键名或索引.

#### func (*LkkArray) ArrayKeys

```go
func (ka *LkkArray) ArrayKeys(arr interface{}) []interface{}
```
ArrayKeys 返回数组(切片/字典)中所有的键名.

#### 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) ArrayPop

```go
func (ka *LkkArray) ArrayPop(s *[]interface{}) interface{}
```
ArrayPop 弹出数组最后一个元素(出栈),并返回该元素.

#### func (*LkkArray) ArrayPush

```go
func (ka *LkkArray) ArrayPush(s *[]interface{}, elements ...interface{}) int
```
ArrayPush 将一个或多个元素压入数组的末尾(入栈),返回处理之后数组的元素个数.

#### func (*LkkArray) ArrayRand

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

#### 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 从数组中搜索对应元素(单个). arr为要查找的数组,元素必须为字典;condition为条件字典.

#### func (*LkkArray) ArraySearchMutil

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

#### func (*LkkArray) ArrayShift

```go
func (ka *LkkArray) ArrayShift(s *[]interface{}) interface{}
```
ArrayShift 将数组开头的元素移出数组,并返回该元素.

#### func (*LkkArray) ArraySlice

```go
func (ka *LkkArray) ArraySlice(arr interface{}, offset, size int) []interface{}
```
ArraySlice 返回根据 offset 和 size 参数所指定的 arr 数组/切片中的一段切片.

#### func (*LkkArray) ArrayUnique

```go
func (ka *LkkArray) ArrayUnique(arr interface{}) []interface{}
```
ArrayUnique 移除数组中重复的值.

#### func (*LkkArray) ArrayUnshift

```go
func (ka *LkkArray) ArrayUnshift(s *[]interface{}, elements ...interface{}) int
```
ArrayUnshift 在数组开头插入一个或多个元素,返回处理之后数组的元素个数.

#### func (*LkkArray) ArrayValues

```go
func (ka *LkkArray) ArrayValues(arr interface{}, filterNil bool) []interface{}
```
ArrayValues 返回数组(切片/字典)中所有的值. filterNil是否过滤空元素(nil,''),true时排除空元素,false时保留空元素.

#### 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)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位整型数组/切片内.

#### func (*LkkArray) InIntSlice

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

#### func (*LkkArray) InStringSlice

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

#### func (*LkkArray) IsArrayOrSlice

```go
func (ka *LkkArray) IsArrayOrSlice(val interface{}, chkType uint8) int
```
IsArrayOrSlice 检查变量是否数组或切片. chkType检查类型,枚举值有(1仅数组,2仅切片,3数组或切片);结果为-1表示非,>=0表示是

#### func (*LkkArray) IsEqualArray

```go
func (ka *LkkArray) IsEqualArray(expected, actual interface{}) bool
```
IsEqualArray 两个数组/切片是否相同(不管元素顺序). expected, actual 是要比较的数组/切片.

#### func (*LkkArray) IsMap

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

#### func (*LkkArray) JoinInts

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

#### func (*LkkArray) JoinStrings

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

#### func (*LkkArray) MergeMap

```go
func (ka *LkkArray) MergeMap(key2Str bool, 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;key2Str是否将键转换为字符串;ss是元素为字典的数组.

#### func (*LkkArray) MergeSlice

```go
func (ka *LkkArray) MergeSlice(filterNil bool, ss ...interface{}) []interface{}
```
MergeSlice 合并一个或多个数组/切片.
filterNil是否过滤空元素(nil,''),true时排除空元素,false时保留空元素;ss是元素为数组/切片的数组.

#### func (*LkkArray) Unique64Ints

```go
func (ka *LkkArray) Unique64Ints(ints []int64) (res []int64)
```
Unique64Ints 移除64位整数数组中的重复值.

#### func (*LkkArray) UniqueInts

```go
func (ka *LkkArray) UniqueInts(ints []int) (res []int)
```
UniqueInts 移除整数数组中的重复值.

#### func (*LkkArray) UniqueStrings

```go
func (ka *LkkArray) UniqueStrings(strs []string) (res []string)
```
UniqueStrings 移除字符串数组中的重复值.

#### type LkkCaseSwitch

```go
type LkkCaseSwitch uint8
```

LkkCaseSwitch 枚举类型,大小写开关

#### type LkkConvert

```go
type LkkConvert byte
```

LkkConvert is the receiver of convert utilities

#### func (*LkkConvert) BaseConvert

```go
func (kc *LkkConvert) BaseConvert(number string, frombase, tobase int) (string, error)
```
BaseConvert 进制转换,在任意进制之间转换数字. number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. 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(number int64) string
```
Dec2Bin 将十进制转换为二进制.

#### func (*LkkConvert) Dec2Hex

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

#### func (*LkkConvert) Dec2Oct

```go
func (kc *LkkConvert) Dec2Oct(number 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) GetPointerAddrInt

```go
func (kc *LkkConvert) GetPointerAddrInt(variable interface{}) int64
```
GetPointerAddrInt 获取变量指针地址整型值.variable为变量.

#### func (*LkkConvert) Gettype

```go
func (kc *LkkConvert) Gettype(v interface{}) string
```
Gettype 获取变量类型.

#### func (*LkkConvert) Hex2Bin

```go
func (kc *LkkConvert) Hex2Bin(data 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 检查变量是否为空.

#### 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 检查变量是否空值.

#### 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) 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) (res 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. 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:=String2bytes("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.

#### func (*LkkConvert) Str2Float64

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

#### func (*LkkConvert) Str2FloatStrict

```go
func (kc *LkkConvert) Str2FloatStrict(val string, bitSize int, strict bool) float64
```
Str2FloatStrict 严格将字符串转换为浮点型. bitSize为类型位数,strict为是否严格检查.

#### func (*LkkConvert) Str2Int

```go
func (kc *LkkConvert) Str2Int(val string) (res int)
```
Str2Int 将字符串转换为int.其中"true", "TRUE", "True"为1.

#### 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) Str2IntStrict

```go
func (kc *LkkConvert) Str2IntStrict(val string, bitSize int, strict bool) int64
```
Str2IntStrict 严格将字符串转换为有符号整型. bitSize为类型位数,strict为是否严格检查.

#### func (*LkkConvert) Str2Uint

```go
func (kc *LkkConvert) Str2Uint(val string) uint
```
Str2Uint 将字符串转换为uint.

#### 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) Str2UintStrict

```go
func (kc *LkkConvert) Str2UintStrict(val string, bitSize int, strict bool) uint64
```
Str2UintStrict 严格将字符串转换为无符号整型,bitSize为类型位数,strict为是否严格检查

#### func (*LkkConvert) ToBool

```go
func (kc *LkkConvert) ToBool(val interface{}) bool
```
ToBool 强制将变量转换为布尔值.

#### func (*LkkConvert) ToFloat

```go
func (kc *LkkConvert) ToFloat(val interface{}) (res float64)
```
ToFloat 强制将变量转换为浮点型;其中true或"true"为1.0 .

#### func (*LkkConvert) ToInt

```go
func (kc *LkkConvert) ToInt(val interface{}) int
```
ToInt 强制将变量转换为整型;其中true或"true"为1.

#### 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 byte
```

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) DumpStacks

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

#### func (*LkkDebug) GetFuncDir

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

#### func (*LkkDebug) GetFuncFile

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

#### func (*LkkDebug) GetFuncLine

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

#### func (*LkkDebug) GetFuncName

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

#### func (*LkkDebug) GetFuncPackage

```go
func (kd *LkkDebug) GetFuncPackage(funcFile ...string) string
```
GetFuncPackage 获取调用方法或源文件的包名.funcFile为源文件路径.

#### func (*LkkDebug) GetMethod

```go
func (kd *LkkDebug) GetMethod(t interface{}, method string) interface{}
```
GetMethod 获取对象中的方法. 注意:返回的该方法中的第一个参数是接收者. 所以,调用该方法时,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 检查对象是否具有某方法.

#### type LkkEncrypt

```go
type LkkEncrypt byte
```

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)
```
AesECBDecrypt 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)
```
AesECBEncrypt 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(data []byte) ([]byte, error)
```
Base64UrlDecode url安全的Base64Decode.

#### func (*LkkEncrypt) Base64UrlEncode

```go
func (ke *LkkEncrypt) Base64UrlEncode(source []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 byte
```

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.

#### 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, delRoot bool) error
```
DelDir 删除目录;delRoot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(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 新建目录,允许多级目录.

#### func (*LkkFile) Pathinfo

```go
func (kf *LkkFile) Pathinfo(fpath string, options int) map[string]string
```
Pathinfo 获取文件路径的信息,options的值为-1: all; 1: dirname; 2: basename; 4: extension; 8:
filename.

#### 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) string
```
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) string
```
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 重命名文件或目录.

#### 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.

#### func (*LkkFile) Zip

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

#### 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 byte
```

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(number) - 1，甚至当 number 的值接近零也能计算出准确结果.

#### func (*LkkNumber) FloatEqual

```go
func (kn *LkkNumber) FloatEqual(f1 float64, f2 float64, decimal ...int) bool
```
FloatEqual 比较两个浮点数是否相等.decimal为小数精确位数.

#### 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”.

#### func (*LkkNumber) IsNatural

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

#### 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) 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.

#### func (*LkkNumber) Percent

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

#### func (*LkkNumber) Pi

```go
func (kn *LkkNumber) Pi() float64
```
Pi 得到圆周率值.

#### 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 生产一个随机float64整数.

#### func (*LkkNumber) RandInt

```go
func (kn *LkkNumber) RandInt(min, max int) int
```
RandInt 产生一个随机int整数.

#### func (*LkkNumber) RandInt64

```go
func (kn *LkkNumber) RandInt64(min, max int64) int64
```
RandInt64 生产一个随机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 int8) float64
```
RoundPlus 对指定的小数位进行四舍五入. precision为小数位数.

#### 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 byte
```

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(仅支持linux),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为目录. 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.

#### 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.

#### 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, def ...string) string
```
Getenv 获取一个环境变量的值.def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(仅支持Unix-like system).

#### 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.protocols为协议名称,可选,默认tcp.

#### func (*LkkOS) IsPrivateIp

```go
func (ko *LkkOS) IsPrivateIp(address 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(ip net.IP) bool
```
IsPublicIP 是否公网IP.

#### 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(仅支持linux),单位字节. 参数 virtual,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).

#### 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 byte
```

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 int) 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 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) 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) 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, isMains ...bool) string
```
GetDomain 从URL字符串中获取域名.
可选参数isMains,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) Gravatar

```go
func (ks *LkkString) Gravatar(email string, size uint16) string
```
Gravatar 获取Gravatar头像地址.

#### func (*LkkString) HasChinese

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

#### 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) (res 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 将字符串转换为base64图片.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IsASCII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.

#### 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) IsDialString

```go
func (ks *LkkString) IsDialString(str string) bool
```
IsDialString 是否网络拨号字符串(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) 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) IsPhone

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

#### func (*LkkString) IsPort

```go
func (ks *LkkString) IsPort(val interface{}) bool
```
IsPort 字符串或数字是否端口号.

#### 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 int) 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(str string) 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(data []byte, val interface{}) error
```
JsonDecode 对 JSON 格式的字符串进行解码,注意val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.

#### 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）.

#### 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32/16 .

#### 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32/16 .

#### func (*LkkString) Nl2br

```go
func (ks *LkkString) Nl2br(html 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.

#### func (*LkkString) ParseStr

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

#### func (*LkkString) ParseUrl

```go
func (ks *LkkString) ParseUrl(str string, component int) (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 . \ + * ? [ ^ ] ( $ ).

#### 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）.

#### 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
```
ShaX 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, percent *float64) int
```
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;percent为相似程度百分数.

#### 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) StripTags

```go
func (ks *LkkString) StripTags(str string) string
```
StripTags 过滤html和php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 计算字符串出现的次数.

#### 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）.

#### 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, registers ...interface{}) (val interface{}, err error)
```
UnSerialize 对字符串进行反序列化;其中registers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、基于当前时间微秒数的唯一ID.

#### 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UUID(Version4).

#### func (*LkkString) VersionCompare

```go
func (ks *LkkString) VersionCompare(version1, version2, operator string) bool
```
VersionCompare 对比两个版本号字符串. 在第一个版本低于第二个时,version_compare() 返回 -1;如果两者相等,返回
0;第二个版本更低时则返回 1. 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： 未找到的任意字符串 < dev < alpha = a < beta = b < RC = rc <
# < pl = p 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 byte
```

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.

#### 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, years ...int) (days int)
```
GetMonthDays 获取指定月份的天数.years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).

#### func (*LkkTime) MilliTime

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

#### 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).

#### 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      int64   `json:"run_time"`       //服务运行时间,纳秒
	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