<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Document</title>
</head>
<body>
<div id="app">
<!--使用v-bind将变量绑定数据，数据更改，变量也更改-->
<!--动态组件：使用is属性来绑定变量，控制变量的值使当前元素动态渲染不同的组件-->
<p>
<a href="#" @click.stop="which='home'">主页</a>
<a href="#" @click.stop="which='about'">介绍</a>
</p>
<div :is="which"></div>
</div>
<script src="js/vue.js"></script>
<script>
//const定义的变量不可以修改，而且必须初始化
//var定义的变量可以修改，如果不初始化会输出undefined，不会报错。
const Home = {
template:"<div><h1>主页</h1><p>主页内容。。。。</p></div>"
}
const About = {
template:"<div><h1>介绍</h1><p>介绍内容。。。。</p></div>"
}
var vm = new Vue({
el:"#app",
components:{
'home':Home,
'about':About
},
data:{
which:"home"
}
})
</script>
</body>
</html>
也可将template单独拿出来
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="X-UA-Compatible" content="ie=edge" />
<title>Document</title>
</head>
<body>
<div id="app">
<p>
<a href="#" @click="which='home'">主页</a>
<a href="#" @click="which='about'">介绍</a>
</p>
<div :is="which"></div>
</div>
<script src="js/vue.js"></script>
<script type="x-template" id="tit">
<div>
<h1>主页</h1>
<p>主页内容。。。。</p>
</div>
</script>
<script type="x-template" id="content">
<div>
<h1>介绍</h1>
<p>介绍内容。。。。</p>
</div>
</script>
<script>
const Home = {
template:"#tit"
}
const About = {
template:"#content"
}
var vm = new Vue({
el:"#app",
components:{
'home':Home,
'about':About
},
data:{
which:'home'
}
})
</script>
</body>
</html>
