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WeChat applet verification code to obtain countdown effect code sharing

小云云
小云云Original
2018-05-11 14:12:222799browse

This article mainly introduces to you in detail the countdown effect of WeChat applet to obtain verification code. It has certain reference value. Interested friends can refer to it. I hope it can help everyone.

wxml

<button disabled=&#39;{{disabled}}&#39; data-id="2" bindtap="getVerificationCode">
{{time}}
</button>

js

var interval = null //倒计时函数
Page({
 data: {
 date:&#39;请选择日期&#39;,
 fun_id:2,
 time: &#39;获取验证码&#39;, //倒计时 
 currentTime:61
 }, 
 getCode: function (options){
 var that = this;
 var currentTime = that.data.currentTime
 interval = setInterval(function () {
  currentTime--;
  that.setData({
  time: currentTime+&#39;秒&#39;
  })
  if (currentTime <= 0) {
  clearInterval(interval)
  that.setData({
   time: &#39;重新发送&#39;,
   currentTime:61,
   disabled: false 
  })
  }
 }, 100) 
 },
 getVerificationCode(){
 this.getCode();
 var that = this
 that.setData({
  disabled:true
 })
 },

})

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