vue实现表单数据增删小范例

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../vue.js"></script>
    <style>
        [v-clock]{
            display: none;
        }
    </style>
</head>
<body>
    <div id="app" v-clock>
        <h2>添加学员</h2>
        <span>姓名：</span>
        <input type="text" v-model="name">
        <br>
        <span>年龄：</span>
        <input type="text" v-model="age">
        <br>
        <button @click="add">添加</button>
        <button @click="reset">重置</button>
        <h2>信息表</h2>
        <table border="1" cellpadding="0" cellspacing='0' style="border-collapse: collapse; width: 500px;">
            <tr>
                <th>序号</th>
                <th>姓名</th>
                <th>年龄</th>
                <th>操作</th>
            </tr>
            <tr v-for="(item,index) in arr">
                <td>{{index+1}}</td>
                <td>{{item.name}}</td>
                <td>{{item.age}}</td>
                <td><button @click="del">删除</button></td>
            </tr>
            <tr v-if="arr.length>0">
                <td colspan="4">
                    <button @click="delAll">全部删除</button>
                </td>
            </tr>
            <tr v-else="">
                <td colspan="4">暂无数据</td>
            </tr>
        </table>
    </div>
    <script>
        let vm = new Vue({
            el:'#app',
            data:{
                name:'',
                age:'',
                arr:[
                    {
                        id:1,
                        name:'张三',
                        age:18,
                    },
                    {
                        id:2,
                        name:'李四',
                        age:17,
                    },
                ]
            },
            methods:{          
                // 添加
                add(){
                    this.arr.push({
                        name:this.name,
                        age:this.age
                    })
                    this.reset()//添加完后重置
                },
                // 重置
                reset(){
                    this.name='',
                    this.age=''
                },
                // 删除一个  
                del(index){
                    this.arr.splice(index,1)
                },
                // 全部删除
                delAll(){
                    this.arr=[];
                }
            },
        })
    </script>
</body>
</html>
posted @ 2020-10-10 20:04  一首老歌  阅读(152)  评论(0)    收藏  举报