有时候想同时（同级）展示多个视图，而不是嵌套展示，例如创建一个布局，有 sidebar（侧导航） 和 main（主内容） 两个视图，这个时候命名视图就派上用场了。你可以在界面中拥有多个单独命名的视图，而不是只有一个单独的出口。如果 router-view 没有设置名字，那么默认为 default
<!DOCTYPE html>
<!-- saved from url=(0077)https://keepfool.github.io/vue-tutorials/06.Router/basic/basic_01.html#!/home -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>abc</title>
</head>
<body>
<div id="app">
<div class="list-group">
<router-link class="list-group-item" to="/home">Go to Foo</router-link>
<router-link class="list-group-item" to="/about">Go to Bar</router-link>
</div>
<router-view name="a"></router-view>
<router-view name="b"></router-view>
</div>
<template id="homea">
<div>
<h1>Home</h1>
<p>a</p>
</div>
</template>
<template id="homeb">
<div>
<h1>Home</h1>
<p>b</p>
</div>
</template>
<template id="abouta">
<div>
<h1>About</h1>
<p>a</p>
</div>
</template>
<template id="aboutb">
<div>
<h1>About</h1>
<p>b</p>
</div>
</template>
<script src="https://cdn.bootcss.com/vue/2.4.2/vue.min.js"></script>
<script src="https://cdn.bootcss.com/vue-router/2.7.0/vue-router.min.js"></script>
<script>
homea = { template: '#homea' };
homeb = { template: '#homeb' };
abouta = { template: '#abouta' };
aboutb = { template: '#aboutb' };
// About = { template: '<div>bar</div>' }
routes = [{
path: '/home',
components: {
a: homea,
b: homeb
}
},
{
path: '/about',
components: {
a: abouta,
b: aboutb
}
}
]
router = new VueRouter({
routes: routes // （缩写）相当于 routes: routes
});
app = new Vue({
router: router
}).$mount('#app');
</script>
</body>
</html>
注意这样写时不支持的：
{
path: '/about',
components: {
a: "#abouta",
b: "#aboutb"--不能在这里直接用id
}
}