简单实现vue验证码60秒倒计时功能

<span v-show="show" @click="getCode">获取验证码</span>
<span v-show="!show" class="count">{{count}} s</span>

 data(){
 return {
 show: true,
 count: '',
 timer: null,
 }
 },
 methods:{
 getCode(){
  const TIME_COUNT = 60;
  if (!this.timer) {
  this.count = TIME_COUNT;
  this.show = false;
  this.timer = setInterval(() => {
  if (this.count > 0 && this.count <= TIME_COUNT) {
   this.count--;
   } else {
   this.show = true;
   clearInterval(this.timer);
   this.timer = null;
   }
  }, 1000)
  }
 } 
 }