github.com/gogf/gf@v1.16.9/.example/util/guid/guid_length.go (about) 1 package main 2 3 import ( 4 "fmt" 5 "math" 6 "strconv" 7 ) 8 9 func main() { 10 // 36*36^2+36*36+36 11 var s string 12 fmt.Println(strconv.ParseUint("zzz", 36, 3)) 13 fmt.Println(1 << 1) 14 // MaxInt64 15 s = strconv.FormatUint(math.MaxUint64, 16) 16 fmt.Println(s, len(s)) 17 // PID 18 s = strconv.FormatInt(1000000, 36) 19 fmt.Println(s, len(s)) 20 }