Data refresh and reset after uni-app returns to the previous page

1. After the page jumps back to the previous page, the data is reset and all refreshed.
This is a headache. I did something from page a to page b. When I returned to page a, the previous data was gone. What should I do if the page is reset?

把路由页面跳转时用的
uni.navigateTo({})             
改用
uni.navigateBack()

 /* 跳转详情页 */
 todetail(e) {
		var pages = getCurrentPages();// 获取当前页面栈的实例，以数组形式按栈的顺序给出，第一个元素为首页，最后一个元素为当前页面。
		var prevPage = pages[pages.length - 2];  //上一个页面
		//prevPage.route获取上一页面的页面路径
		//条件编译
		console.log(1)
		//#ifdef H5 
		prevPage._data.aa= e.aa//h5中的修改方法
		prevPage._data.bb= e.bb//h5中的修改方法
		//#endif
		// #ifndef H5
		prevPage.$vm._data.aa= e.aa//小程序中的修改方法
		prevPage.$vm._data.bb= e.bb//小程序中的修改方法
		//#endif
		uni.navigateBack()//返回上一页面
     }

This perfectly solves the problem of automatic page refresh, and is a return method that comes with it;

2. The problem of the page not refreshing.
This is simple. When your data changes, if the page view does not change, you only need to addthis.$forceUpdate()强制刷新页面

//请求接口返回后，强制刷新界面
  const result = await this.$request.baseRequest(opts, param);
   if (result.status == "000") {
		uni.hideLoading()
		this.dynamic = this.dynamic.concat(info)
		this.$forceUpdate()
	} else {
		uni.hideLoading()
         uni.showModal({
            content: result.msg,
            showCancel: false
      });
 }
},