golang中的正则匹配&判断元素是否在slice里或者数组里

1、正则匹配

package main

import (
	"fmt"
	"regexp"
)

func main() {

    //pattern := "\d+"     //反斜杠要转义
	pattern := "[a-zA-Z]"   //匹配字母
	str := "a1.22.35.4"
	result, _ := regexp.MatchString(pattern, str)
	fmt.Println(result)   //true
}package main

import (
	"fmt