getdata(){
    let that=this
    wx.cloud.callFunction({
      name:"callback",
     success(res){console.log("request success",res);
    that.setData({
      datalist:res.result.data
    })
    },
     fail(res){console.log("request success",res)}
    })
console.log(datalist)
 
    },




代码console.log(datalist)提示ReferenceError: datalist is not defined
success(res){console.log("request success",res);这个执行成功了