1.pages.json里面开启下拉刷新

 配置的页面里面写onPullDownRefresh方法实现下拉刷新

2.引入onPullDownRefresh

import { onPullDownRefresh } from '@dcloudio/uni-app';

注意：onPullDownRefresh与onMounted平级

编写代码：

onPullDownRefresh(() => {

代码片段.....

uni.stopPullDownRefresh() //停止刷新

})