vue.js 嵌套循环、if判断、动态删除

小灰灰 2022-06-17 14:43 166阅读 0赞

Vue.js是当下很火的一个JavaScript MVVM库，它是以数据驱动和组件化的思想构建的。相比于Angular.js，Vue.js提供了更加简洁、更易于理解的API

app.html

<!doctype html>
    <html lang="zh-CN">
    <head>
        <meta charset="UTF-8">
    	<title>
    	vuejs 嵌套循环、if判断
    	</title>
    	<style type="text/css">
    		[v-cloak] { display: none }
    	</style>
    </head>
    
    <body>
       <div id="app">
    		
    		<table>
    			<tr>			
    				<td >id</td>
    				<td >姓名</td>
    				<td >手机号</td>
    				<td >城市</td>
    				
    				<td >通过审核</td>
    				<td >我的学生</td>
    				<td >操作</td>				
    			</tr>
    		   <tr v-for="(item,index) in list "> 
    			    <td>{
       {item.id}}</td> 
    			    <td>{
       {item.name}}</td>
    			    <td>{
       {item.tel}}</td> 
    				
    			    <td>{
       {item.province}}_{
       {item.city}}</td> 
    				<td v-if="item.status==1">是</td> 
    				<td v-else-if="item.status==0">否</td> 
    				<td >
    					<span v-for="stu in item.stu ">
    					{
       {stu.name}},
    					</span>
    				</td> 
    				<td>
    				   <button v-on:click="edit">修改</button>
    				   <button v-on:click="del(index)">删除</button>
    				</td> 
    		   </tr>
    		</table>
       </div>
    </body>
    <script src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js" charset="utf-8"></script>
    <script src="https://cdn.bootcss.com/vue/2.3.0/vue.min.js" charset="utf-8"></script>
    <script type="text/javascript">
    $(function() {
        new Vue({ 
    		el: '#app', 
    	    methods: { 
    			del:function(index){
    				this.list.splice(index,1);
    			},
    			edit: function () {
    				alert('修改')
    			},
    		},
    	    data: {
    			"list":[{
    				"id":"139",
    				"name":"王五",
    				"tel":"13681829898",
    				"status":"1",
    				"province":"省",
    				"city":"市",
    				"sex":"1",
    				"stu":[{
    					"id":"200",
    					"name":"学生1",
    					"tel":"13681829898",
    				},{
    					"id":"201",
    					"name":"学生2",
    					"tel":"13681829898",
    				}],
    			},
    			{
    				"id":"138",
    				"name":"麻子",
    				"tel":"13681829898",
    				"status":"0",
    				"province":"省",
    				"city":"市",
    				"sex":"0",
    				"stu":[{
    					"id":"300",
    					"name":"学生31",
    					"tel":"13681829898",
    				},{
    					"id":"301",
    					"name":"学生32",
    					"tel":"13681829898",
    				}],
    			},
    			{
    				"id":"137",
    				"name":"丽丽",
    				"tel":"15152882891",
    				"status":"0",
    				"province":"省",
    				"city":"市",
    				"sex":"1",
    				"stu":[{
    					"id":"400",
    					"name":"学生41",
    					"tel":"13681829898",
    				},{
    					"id":"401",
    					"name":"学生42",
    					"tel":"13681829898",
    				}],
    			},
    			{
    				"id":"136",
    				"name":"娜娜",
    				"tel":"15152882891",
    				"status":"0",
    				"province":"省",
    				"city":"市",
    				"sex":"0",
    				"stu":[{
    					"id":"500",
    					"name":"学生51",
    					"tel":"13681829898",
    				},{
    					"id":"501",
    					"name":"学生52",
    					"tel":"13681829898",
    				}],
    			}]
    	    }
    	})
    })
    </script>
    </html>

![Center][]

**vue1.0和vue2.0循环索引使用区别**

如果是vue1.0这样写：
    
    <ol>
                <li v-for="todo in todos" @click="delete($index)">
                        {
       {todo.label}}
                </li>
    </ol>
    然后：
    
    methods:{
        
        delete:function(index){
            this.todos.splice(index,1);
        }
    }
    如果是vue2.0这样写：
    
    <ol>
                    <li v-for="(todo,index) in todos" @click="delete(index)">
                        {
       {todo.label}}
                    </li>  
    </ol>
    然后
    
    methods:{
        
        delete:function(index){
            this.todos.splice(index,1);
        }
    }

[Center]: /images/20220617/0c29908779304dbd8d06bb800963590a.png