miads/adslib/utils/string.go

package utils

import (
	"hash/crc32"
	"regexp"
)

func Rstrip(str string) string {
	if str == "" {
		return ""
	}
	//匹配一个或多个空白符的正则表达式
	reg := regexp.MustCompile("\\0+$")
	return reg.ReplaceAllString(str, "")
}

func Hash(s string) int {
	v := int(crc32.ChecksumIEEE([]byte(s)))
	if v >= 0 {
		return v
	}
	if -v >= 0 {
		return -v
	}
	// v == MinInt
	return 0
}