1.为什么要创建插槽?

1.向子组件中传递数据时,会发生转义或多< div>标签问题
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>vue中的插槽</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="app">
<my-content>
<div slot='header'>Header</div>
<div slot='hello'>Hello</div>
</my-content>
</div>
<script>
Vue.component('my-content',{
template: `<div>
<slot name='header'></slot> //根据name显示数据
<slot name='hello'>default</slot> //设置默认信息
</div>`
})
var vm = new Vue({
el: '#app'
})
</script>
</body>
</html>
2.作用域中使用插槽
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>vue中作用域插槽</title>
<script src="./vue.js"></script>
</head>
<body>
<div id="app">
<my-content>
<template slot-scope="props"><!-- 子组件传递的item,放置在props空间中 -->
<h1>{{props.item}}</h1>
<span>{{props.item}}</span>
</template>
</my-content>
</div>
<script>
Vue.component('my-content',{
data: function(){
return {
list: [1,2,3]
}
},
template: `<div>
<ul>
<slot
v-for="item of list"
:item=item
></slot>
</ul>
<slot></slot>
</div>`
})
var vm = new Vue({
el: '#app'
})
</script>
</body>
</html>