The applet for loop binds the ID of each set of data and obtains the method of the value of an array within it by ID

<block wx:for= "{{nums}}" wx:for-index= ' key ' wx:for-item= ' item ' >  <view class= "Maxbox"  bindtap= " Imgchange "  id=" {{key}} ">    <text class=" nums ">{{item.num}}</text>  </view></ Block>

Page ({      data: {      nums:[        {num:11},        {num:22}      ]    },     imgchange:function (event) {      / /Gets the subscript ID of the current item  by currenttarget.id      var id = event.currentTarget.id;        Console.log (ID);      var nums = this.data.nums[id].num;      Console.log (nums);    })

The applet for loop binds the ID of each set of data and obtains the method of the value of an array within it by ID