读取json选项卡：

index.wxml

<!--index.wxml-->
<view class="top" wx:for="{{oneList}}" wx:for-item="i" wx:for-index="id" data-id="{{i.id-1}}" wx:key="id" bindtap="add">
      {{id}}   
</view>

<view class="bottom">
     {{id}}:{{oneList[id].name}}
</view>

index.wxss

/**index.wxss**/
.top{width:23%;float:left;line-height:100rpx;background:#f60;text-align: center;color:#fff;margin:0 1%;}
.bottom{width:100%;height:400rpx;background:#f90}

index.js

//index.js
//获取应用实例
var app = getApp()
Page({
 
  data: {
    motto: ‘Hello World‘,
    userInfo: {},
    oneList:[{
   	 		id:1,
   	 		name:‘周杰伦‘
   	 },{
   	 		id:2,
   	 		name:‘彭于晏‘
   	 },{
   	 		id:3,
   	 		name:‘蔡依林‘
   	 },{
   	 		id:4,
   	 		name:‘林俊杰‘
   	 }],
  },
 
  onl oad: function () {	
    console.log("onLoad");
    this.setData({
       id: 0 
      });
	},
  add: function (e) {	
    console.log(e.target.dataset.id);
    this.setData({
        id: e.target.dataset.id
      });
	},

})

最近开发小程序写的demo