代码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=<device-width>, initial-scale=1.0">
<script crossorigin="anonymous" integrity="sha512-BKbSR+cfyxLdMAsE0naLReFSLg8/pjbgfxHh/k/kUC82Hy7r6HtR5hLhobaln2gcTvzkyyehrdREdjpsQwy2Jw==" src="https://lib.baomitu.com/vue/2.6.12/vue.min.js"></script>
<title>Document</title>
</head>
<body>
<!-- view -->
<div id="app">
<h1>{{f1()}}</h1>
<h1>{{f2}}</h1>
</div>
<!-- viewmodel -->
<script>
var vm = new Vue({
el:"#app",
data: {
message:"lbwnb"
},
methods: {
f1:function(){
return "f1的时间是："+Date.now();
}
},
computed: {
f2:function(){
this.message;
return "f2的时间是："+Date.now();
}
}
});
</script>
</body>
</html>