let API_HOST = "http://xxx.com/xxx";
let DEBUG = true;//切换数据入口
var Mock = require(\'mock.js\')
function ajax(data = \'\', fn, method = "get", header = {}) {
    if (!DEBUG) {
        wx.request({
            url: config.API_HOST + data,
            method: method ? method : \'get\',
            data: {},
            header: header ? header : { "Content-Type": "application/json" },
            success: function (res) {
                fn(res);
            }
        });
    } else {
        // 模拟数据
        var res = Mock.mock({
            \'error_code\': \'\',
            \'error_msg\': \'\',
            \'data|10\': [{
                \'id|+1\': 1,
                \'img\': "@image(\'200x100\', \'#4A7BF7\',\'#fff\',\'pic\')",
                \'title\': \'@ctitle(3,8)\',
                \'city\': "@county(true)",
                \'stock_num\': \'@integer(0,100)\',//库存数量  
                \'marketing_start\': \'@datetime()\',
                \'marketing_stop\': \'@now()\',
                \'price\': \'@integer(100,2000)\',//现价，单位：分  
                \'original_price\': \'@integer(100,3000)\'
            }]  
        })
        // 输出结果
       // console.log(JSON.stringify(res, null, 2))
        fn(res);
    }
}
module.exports = {
    ajax: ajax
}

//index.js
//获取应用实例
var app = getApp()
var API = require(\'../../utils/api.js\')
Page({
    data: {
    },
    onLoad: function () {
        console.log(\'onLoad\')
        var that = this
        // 使用 Mock
        API.ajax(\'\', function (res) {
            //这里既可以获取模拟的res
            console.log(res)
            that.setData({
                list:res.data
            })
        });

        console.log(this.data.list)
    }
})

<!--index.wxml-->
<block wx:for="{{list}}" wx:key="name">
  <view>{{item.title}}</view>
  <text>{{item.city}}</text>
  <view>
    <text>{{item.marketing_start}}</text>
  </view>
  <image src=\'{{item.img}}\'></image>
</block>