插槽内容可以是任意合法的模板内容，不局限于文本。例如我们可以传入多个元素，甚至是组件：
示例：
<!DOCTYPE html>
<html lang="en" xmlns:v-bind="http://www.w3.org/1999/xhtml" xmlns:v-on="http://www.w3.org/1999/xhtml">
<head>
<meta charset="UTF-8">
<title>Title</title>
<!--1、导入Vue.js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.6.14/dist/vue.js"></script>
</head>
<body>
<div id="app">
<todo>
<todo-title slot="todo-title" :title="title"></todo-title>
<todo-items slot="todo-items" v-for="item in toduItems" :item="item"></todo-items>
</todo>
</div>
<script>
Vue.component("todo",{
template:'<div>\
<slot name="todo-title"></slot>\
<ul>\
<slot name="todo-items"></slot>\
</ul>\
</div>'
}
);
Vue.component("todo-title",{
props:["title"],
template: '<div>{{title}}</div>'
});
Vue.component("todo-items",{
props:["item"],
template: '<div>{{item}}</div>'
});
var vm = new Vue({
el:"#app",
data:{
title: '选择你喜欢的课程',
toduItems:[
'Java',
'PHP',
'Linux'
]
}
});
</script>
</body>
</html>
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