// app.js
App({
 onLaunch(){
   var that =this
  wx.getSystemInfo({
    success(res) {
        //获取屏幕的宽成功
        that.globalData.screenWidth =res.screenWidth
        that.globalData.screenHeight=res.screenHeight
    }})
  let user_storage=wx.getStorageSync("user_storage") || null
  let userInfo=wx.getStorageSync("userInfo") || null
  if(user_storage){
  let token =user_storage.token
  let uid = user_storage.uid
    this.globalData.token=token
    this.globalData.uid=uid
    this.globalData.userInfo=userInfo
  }

 },
  
  globalData: {
    userInfo: null,token: null, uid: null
  }
})