<!DOCTYPE html>
<html lang="en" xmlns:v-bind="http://www.w3.org/1999/xhtml">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<!--view层 模板-->
<div id="app">
<todo>
//v-bind:---缩写：
<todo-title slot="todo-title" :title="titleData"></todo-title>
<todo-item slot="todoItem" v-for="(i,index) in items" v-bind:item="i" :index="index" v-on:remove="removeItems(index)" ></todo-item>
</todo>
</div>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script>
//slot：插槽
Vue.component("todo",{
template: '<div>' +
'<slot name="todo-title"></slot>' +
'<ul>' +
'<slot name="todoItem"></slot>' +
'</ul>' +
'</div>'
});
Vue.component("todo-title",{
props: ['title'],
template: '<div>{{title}}</div>'
});
Vue.component("todoItem",{
props: ['item','index'],
//@是v-on的缩写 只能绑定当前组件的方法
template: '<li>{{index}}------{{item}}<button @click="remove">删除</button></li>',
methods: {
remove: function (index) {
//this.$emit("自定义事件",index) 自定义事件分发
this.$emit("remove",index)
}
}
});
var vm = new Vue({
el:"#app",
data:{
titleData: '这是title',
items: ['A','B','C']
},
methods:{
removeItems: function (index) {
console.log("删除了"+this.items[index]+"ok");
this.items.splice(index,1);//一次删除一个元素
}
}
});
</script>
</body>
</html>
