nd_wxapp/pages/index/index.js

//index.js

const util = require("../../utils/util")

//获取应用实例
const app = getApp()

Page({
  data: {
    buyModel:false,
    system: "",
    userInfo:{},
  },
  onLoad: function(){
    let that = this
    app.checkLogin(res=>{
      console.log("login", res)
    })
  },
  onPullDownRefresh() {
    if (!this.loading) {
      this.indexLoad( this.stopPullDownRefresh )
    }
  },
  onShareAppMessage: function(){
  }
})