reader/pages/works/index.js

const app = getApp()
import {
  getBannerList
} from '~/api/global'
Page({
  data: {
    bannerList: []
  },
  onShow() {
    if (typeof this.getTabBar === 'function') {
      this.getTabBar().setData({
        selected: 2
      })
    }
    getApp().callBack = (res) => {
    }
  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom() {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage() {

  }
})