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02计算属性computed.html
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02计算属性computed.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>计算属性computed</title>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
<div id="app">
<h2>{{ message }}</h2>
<br />
<input v-model="message">
<br />
<input v-model="a">
<br />
<input v-model="obj.age">
<br />
<input v-model="sum">
<br />
<input v-model="c">
</div>
</body>
<script>
var app = new Vue({
el: '#app',
data: {
message: 'Hello Vue!',
a:1,
b:2,
obj:{
name:'gr',
age:18
}
},
// 计算属性
computed: {
sum:function(){
return +this.a+(+this.obj.age)
},
c:{
get(){
return +this.a+this.b
},
set() {
console.log(111);
}
}
},
})
</script>
</html>