哪位大佬知道这是怎么回事吗？我在startAcc里调用senddiedao方法，为啥就不行了，我试过了—this=this ，试过了this=that，试过了this.senddiedao()并且传值我都用了就是不行，下面这是源代码

onLoad() {

    this.getLocation();

    this.getjinjiinformation();

    this.getusersopenid();

    this.startAcc();

  },

  startAcc: function () {

    var _this=this

    wx.startAccelerometer({ 

      success: function () {

        wx.onAccelerometerChange(function (res) {

          // console.log("加速度",res)

          let resAcc1=res.x+res.y+res.z

          // console.log("加速度",resAcc1)

          if(resAcc1>1){

            console.log("超出敏感值",resAcc1)

            this.senddiedao()

   }

        })

      }

    })

  },

senddiedao:function(){

    console.log("调用成功")

      },