微信小程序中验证码获取倒计时效果的实现方式

var interval = null //倒计时函数

Page({

 data: {

 date:'请选择日期',

 fun_id:2,

 time: '获取验证码', //倒计时

 currentTime:61

 },

 getCode: function (options){

 var that = this;

 var currentTime = that.data.currentTime

 interval = setInterval(function () {

  currentTime--;

  that.setData({

  time: currentTime+'秒'

  })

  if (currentTime <= 0) {

  clearInterval(interval)

  that.setData({

   time: '重新发送',

   currentTime:61,

   disabled: false

  })

  }

 }, 100)

 },

 getVerificationCode(){

 this.getCode();

 var that = this

 that.setData({

  disabled:true

 })

 },

})