vue强制更新$forceUpdate() 异步赋值后 dom 没有更新的时候用
<template> <div> Hello,{{message}} </div> </template> <script> export default { name: "Home", data () { return { message: '' }; }, updated(){ console.log("更新了"); }, mounted(){ var that = this; setTimeout(funcion(){ that.message = 'forceUpdate'; that.$forceUpdate(); },1000); } } </script>