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Vue
/
toDoList.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>备忘录</title>
    <style>
        #app{
            width: 300px;
            height: 500px;
            background-color: #e4e4e4;
            margin-left: 30px;
            padding-left: 20px;
        }
    </style>
</head>
<body>
    <div id="app">
        <h3>ToDoList</h3>
        <input type="text" v-model="txt">
        <button @click="txtClick" >保存</button>
        <br>
        <div  v-for="(list,i) in lists">
            <ul>
                <li>{{list}}
                    <button @click="dele(i)" >删除</button>
                </li>
            </ul>
        </div>

        <button @click="delsAll">清空列表</button>
        <hr>
            <span>已完成：</span>
            <ul v-for="del in dels">
                <li>{{del}}</li>
            </ul>
    </div>
    <script src="./js/vue.js"></script>
    <script>
        let vm=new Vue({
            el:'#app',
            data:{
                lists:[
                    '待办事件1',
                    '待办事件2'
                ],
                dels:[],
                txt:'',
            },
            methods: {
                txtClick(){
                    this.lists.push(this.txt)
                },
                dele(i){
                    this.dels.push(this.lists[i])
                    this.lists.splice(this.lists[i],1)
                    // this.lists[i]='';
                },
                delsAll(){
                    // 将数组合并 再赋值给dels
                    this.dels=this.dels.concat(this.lists);
                     this.lists.splice(this.lists);


                }
            },
        })
    </script>
</body>
</html>