LeetCode，Go算法实现有效的括号

func isValid(s string) bool {
    m := map[byte]byte{'{':'}','[':']','(':')'}
 var stack []byte
 for i := 0; i < len(s); i++ {
  if _, ok := m[s[i]]; ok {
   stack = append(stack,s[i])
  }else{
   if len(stack)>0 && m[stack[len(stack)-1]] ==s[i]{
    stack = stack[:len(stack)-1]
   }else{
    return false
   }
  }
 }
 return len(stack) == 0
}

import (
 "fmt"
 "strings"
)

func main() {
 re := isValid("([]])")
 fmt.Println(re)
}
func isValid(s string) bool {
 for {
  find1 := strings.Contains(s, "()")
  find2 := strings.Contains(s, "[]")
  find3 := strings.Contains(s, "{}")
  if find1 || find2 || find3 {
   s = strings.Replace(s,"()","",-1)
   s = strings.Replace(s,"[]","",-1)
   s = strings.Replace(s,"{}","",-1)
  }else{
   break
  }
 }
 return len(s)==0
}