<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.js"></script>
</head>
<body>
<div id = "app">
姓:<input type="text" v-model="firstName">
名:<input type="text" v-model="lastName">
<p>{{name()}} 这是methods方法</p>
<p>{{fullname}} 这是computed</p>
</div>
<script>
let vm = new Vue({
el:"#app",
data:{
firstName:"",
lastName:""
},
methods:{
name(){
return this.firstName +this.lastName
}
},
computed:{
fullname:{
get:function(){
return this.firstName + this.lastName
},
}
}
})
</script>
</body>
</html>
原文：https://www.cnblogs.com/mengtong/p/10706577.html