表单添加删除 

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <h3>添加学员</h3>
        姓名：<input type="text" v-model='name'>
        <br>
        年龄：<input type="text" v-model='age'>
        <br>
        <button @click='add'>添加</button>
        <button @click='reset'>重置</button>
        <h3>信息表</h3>
        <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' :key='item.id'>
                <td>{{index+1}} </td>
                <td>{{item.name}} </td>
                <td>{{item.age}} </td>
                <td>
                    <button @click='del(index)'>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 src="./代码/vue.js"></script>
    <script>
        new Vue({
            el:"#app",
            data:{
                name:'',
                age:'',
                arr:[
                    {
                        id:1,
                        name:"aaa",
                        age:11
                    },
                    {
                        id:2,
                        name:"bbb",
                        age:11
                    },
                    {
                        id:3,
                        name:"ccc",
                        age:11
                    },
                    {
                        id:4,
                        name:"ddd",
                        age:11
                    }
                ]
            },
            methods:{
                // 删除
                del(index){
                    this.arr.splice(index,1)
                },
                // 全部删除
                delAll(){
                   this.arr=[]
                },
                // 添加
                add(){
                    this.arr.push({
                        name:this.name,
                        age:this.age
                    }),
                    this.reset()
                },
                // 重置
                reset(){
                    this.name='',
                    this.age=''
                }
            }
        })
    </script>
</body>
</html>

 

posted @ 2020-10-10 20:17  覅#  阅读(127)  评论(0)    收藏  举报