pageScrollTo在开发工具中没问题，在苹果真机中却没有效果，这是为啥？

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pageScrollTo在开发工具中没问题，在苹果真机中却没有效果，这是为啥？pageScrollTo is fine in the development tool, but it has no effect in the real Apple machine. Why?

onReady:function(){    let that = this;    var _id = that.data.commentId;    if(_id > 0){      console.log("pageScrollTo");      wx.pageScrollTo({        selector:'#Comment_'+_id,        duration: 100,        success: res => {          console.log(res)        },        complete: res => {          console.log(res)         }      });    }  } 在开发工具中执行没有问题，在iPhone7P的真机上没有滑动效果，且在真机上发现没有pageScrollTo方法返回，十分无奈，有能提供帮助的同学吗

onReady:function (){    let that = this;    var _ id =  that.data.commentId ;    if(_ id > 0){       console.log ("pageScrollTo");       wx.pageScrollTo ({        selector:'#Comment_ + + id,        duration: 100,        success: res => {           console.log (res)        },        complete: res => {           console.log (res)         }      }); There is no problem in the implementation of the development tool, there is no sliding effect on the iPhone 7p real machine, and there is no pagescrollto method return on the real machine, which is very helpless. Is there any student who can help

回答：

  onReady: function () {    let that = this;    var _id = that.data.commentId;    if (_id > 0) {      console.log("pageScrollTo");      setTimeout(() => {        wx.pageScrollTo({          selector: "#Comment_" + _id,          duration: 100,          success: (res) => {            console.log(res);          },          complete: (res) => {            console.log(res);          },        });      }, 500);    }  },