package pingo
import (
"fmt"
"math/rand"
"strings"
)
type meta string //定义 自定义数据类型
//输出包含自身在内的参数字符串
func (h meta) output(key, val string) { fmt.Printf("%s: %s: %s
", string(h), key, val)}
func (h meta) parse(line string) (key, val string) { if line == "" { return
}
if len(line) < len(string(h)) { return
}
if line[0:len(string(h))] != string(h) {//比较当前字符串和参数字符串是否是以当前字符串开始的 return
}
line = line[len(string(h))+2:] //当前字符串字符长度+2 截取字符串 到末尾
end := strings.IndexByte(line, ':') //line中是否包含：字符
if end < 0 { return
}
return line[0:end], line[end+2:]
}
var _letters = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_-") //字rune符集合//随机产生n个字符串返回
func randstr(n int) string { b := make([]rune, n)
l := len(_letters)
for i := range b { b[i] = _letters[rand.Intn(l)]
}
return string(b)
}