golang 正则表达式去除字符串空格

golang中string操作是一个比较频繁的工作。其中去除空格、换行、空白符是经常需要的。

源码：

package main

import (
  "fmt"
  "regexp"
  "strings"
)

func compressStr(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("\\s+")
  return reg.ReplaceAllString(str, "")
}

func main() {
  str := "    8debdcc4362972bcb0872aec7493712c7b2bf95087436a0a90bbcbf3cd15c8ff"
  //str := "    8debdcc4362972bcb0872aec7493712c7b2bf95087436a0a90bbcbf3cd15c8ff"
  fmt.Printf("%s\n", str)

  str_s := strings.Replace(str, " ", "", -1)
  fmt.Printf("%s\n", str_s)

  // 利用正则表达式去除空白符
  str_z := compressStr(str)
  fmt.Printf("%s\n", str_z)
}

执行结果：

root@helmsman:~/hlm-miner/script/lotus/lotus-user# go run main.go 
    8debdcc4362972bcb0872aec7493712c7b2bf95087436a0a90bbcbf3cd15c8ff
    8debdcc4362972bcb0872aec7493712c7b2bf95087436a0a90bbcbf3cd15c8ff
8debdcc4362972bcb0872aec7493712c7b2bf95087436a0a90bbcbf3cd15c8ff
root@helmsman:~/hlm-miner/script/lotus/lotus-user#