Vue——自定义内容分发

马上就要进入真正的vue的学习啦！！！！

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--view层，模板-->
<div id="vue">
    <todo>
        <todo-title slot="todo-title" title="title" :name="title"></todo-title>
        <todo-items slot="todo-items" v-for="(item,index) in todoItems"
                    :item="item" :index="index" v-on:remove="removeItems(index)" :key="index"></todo-items>
    </todo>
</div>
<!--1.导入Vue.js-->
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.21/dist/vue.min.js"></script>
<script type="text/javascript">
    Vue.component('todo',{
        template:'<div>\
                    <slot name="todo-title"></slot>\
                    <ul>\
                        <slot name="todo-items"></slot>\
                    </ul>\
                  </div>'
    });

    Vue.component('todo-title',{
        props:['name'],
        template:'<div>{{title}}</div>'
    });

    Vue.component('todo-items',{
        props:['item','index'],
        //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.$emit 自定义事件分发
                this.$emit('remove',index);
            }
        }

    });

    var vm = new Vue({
        el:"#vue",
        data:{
            title: "课程",
            todoItems:['数学','语文','英语']
        },
        methods:{
            removeItems:function (index){
                console.log("删除了"+this.todoItems[index]+"ok");
                this.todoItems.splice(index,1); //一次删除一个元素
            }
        }
    });
</script>
</body>
</html>