macaoApplets_new/pages/index/index.js

// index.js
// 获取应用实例
const app = getApp();

Page({
  data: {
    type: 'map',
    navList:[{
      id:'list',
      name:'列表'
    },{
      id:'big-pic',
      name:'大图'
    },{
      id:'map',
      name:'地图'
    }]
  },
  onLoad() {
  },
  switchType(e) {
    let type = e.target.dataset && e.target.dataset.type || 'map';
    this.setData({
      type
    })
  }
})