05_compenent.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="js/vue.js"></script>
</head>
<body>
    
    <template id="tplTodoAdd">
        <div>
            <input type="text"><button>添加</button>
        </div>
    </template>
    <script>
        var todoAdd={
            template:"#tplTodoAdd"
        }
    </script>

    <template id="tplTodoItem">
        <li>{{i+1}}-{{task}}</li>
    </template>
    <script>
        var todoItem={
            template:"#tplTodoItem",
            props:["task","i"] //对外：父组件可绑定数据 对内data{task：xxx，i：x}
        }
    </script>
    
    <template id="tplTodoList">
        <ul>
            <todo-item v-for="(task,i) of tasks" :task="task" :i="i"></todo-item>
        </ul>
    </template>
    <script>
        var todoList={
            template:"#tplTodoList",
            props:["tasks"],
            components:{
                todoItem
            }
        }
    </script>
    
            
    
    
    <template id="tplTodo">
        <div>
            <h1>待办事项列表</h1>
            <todo-add></todo-add>
            <todo-list :tasks="tasks"></todo-list>
        </div>
    </template>
    <script>
        Vue.component("todo",{
            template:"#tplTodo",
            data:function(){
                return {
                    tasks:["吃饭","睡觉","打豆豆","打日天"]
                }
            },
            components:{
                todoAdd,
                todoList
            }
        })
    </script>

    


    <div id="app">
        <todo></todo>
    </div>
    <script>
        var vm=new Vue({
            el:"#app",
            data:{

            }
        })
    </script>
</body>
</html>