const app =getApp();

App({
  eduOS:{
    token:''
  },
  ...
})

app.eduOS.token = Value;

wx.setStorage({
            key: 'educookie',
            data: {
              xh: that.data.xh,
              pwd: that.data.pwd
            }
          })

 var that = this;
 wx.getStorage({
      key: 'educookie',
      success: function(res) {
        that.setData({xh:res.data.xh,pwd:res.data.pwd});
      },
    })

{
 ad1:'imgurl1',
 ad2:'imgurl2',
 ad3:'imgurl3'
}

wx.request({
 url:'XXX',
 data:{},
 success(res){
  that.setData({
   adList:res.data
  })
 }
})

wx.navigatorTo({
 url:'../index/index?param1=value1&param2=value2'
})

//在index頁面獲取
onLoad(options){
 console.log(options.param1);//value1
}

wx.setStorge({
  key:'xxx',
  data:mydata
})
//獲取
wx.getStorgeSync('')

wx.removeStorage({
  key: 'xxx',
  success(res) {
    console.log(res)
  }
})

const app = getApp();
page({
 app.globalData.isBackvalue = ture;//確定是返回的值
 app.globalData.tmpData = value;//你要傳遞的值,也可以設(shè)置緩存
})

const app = getApp();
...
onShow(){
  if(app.globalData.isBackValue){
   this.setData({
    XXX:app.globalData.tmpData
   })
   //或者是通過獲取緩存的方法進(jìn)行賦值
  }
}

var allpages = getCurrentPages();//獲取全部頁面數(shù)據(jù)
//棧的下標(biāo)從 0 開始,進(jìn)入頁面第一個(gè)加載的頁面數(shù)據(jù)是 allpages[0],當(dāng)前頁面是allpages[allpages.length - 1], 上一個(gè)頁面是allpages[allpages.length - 2]
var prepagedata = allpages[allpages.length - 2].data;//獲取上一頁面的數(shù)據(jù)。
var prepage = allpages[allpages.length - 2];//獲取上一頁面，包括數(shù)據(jù)和方法

//設(shè)置數(shù)據(jù)方法
prepage.setData({
 XXX:value //XXX 是上個(gè)頁面data中的參數(shù)，value是要設(shè)置的值
})
//調(diào)用函數(shù)方法,prepage中必須定義callfunction函數(shù)才可以調(diào)用
prepage.callfunction();

wx.navigateTo({
      url: 'B頁面',
      success:res=>{
        res.eventChannel.emit('channeldata', {name:'kindear'})
      }
})

  onLoad: function (options) {
    let eventChannel = this.getOpenerEventChannel();
    eventChannel.on('channeldata', data => {
      console.log(data)
        //打印成功 {name:'kindear'}
    })
  }