onLoad: function (e) {
  var that=this;
  var sy=that.data.sy;
  wx.request({
    url: 'http://47.93.189.32/parkingstateapi.php',
    success:function(res){
      var nsy=Number(res.data[0].hourUsagerate);
      that.setData({
        sy:nsy
      }),
      console.log(nsy);
      console.log(sy);
      console.log(typeof nsy);
      console.log(typeof sy);
    }
  })
    
   
},