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Parsing vue's method of adding and deleting elements

不言Original: 2018-06-30 16:17:373173browse

This article shares with you the method of adding and deleting elements in Vue and related example codes. Friends who are interested can refer to it.

The relevant version example code is as follows:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>vue实例：添加删除元素r</title>
  <style type="text/css">
    .form-group{
      margin:10px;
    }
    .form-group>label{
      display: inline-block;
      width: 5rem;
      text-align: right;
    }
  </style>
</head>
<body>
  <p id="app">
    <p class="form-group">
      <label>name:</label>
      <input type="text" name="" v-model=&#39;newitems.name&#39;>
    </p>
    <p class="form-group">
      <label>age:</label>
      <input type="text" name="" v-model=&#39;newitems.age&#39;>
    </p>
    <p class="form-group">
      <label>sex:</label>
      <select v-model=&#39;newitems.sex&#39;>
        <option value="男">男</option>
        <option value="女">女</option>
      </select>

    </p>
    <p class="form-group">
      <label></label>
      <button v-on:click = &#39;addPerson&#39;>Create</button>
    </p>

    <table>
      <thead>
        <tr>
          <th>Name</th>
          <th>Age</th>
          <th>Sex</th>
          <th>Delete</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="item in items"><!--v-for-->
          <td>{{item.name}}</td>
          <td>{{item.age}}</td>
          <td>{{item.sex}}</td>
          <td><button @click="deletePerson($index)">Delete</button></td>
        </tr>
      </tbody>

    </table>
  </p>

</body>
<script src="vue.js"></script>
<script type="text/javascript">
  var vm = new Vue({
    el:&#39;#app&#39;,
    data:{
      newitems:{
        name:&#39;&#39;,
        age:&#39;18&#39;,
        sex:&#39;女&#39;
      },//newitems默认的
      items:[{
        name:&#39;lily&#39;,
        age:18,
        sex:&#39;女&#39;
      },{
        name:&#39;lily&#39;,
        age:18,
        sex:&#39;女&#39;
      },{
        name:&#39;lily&#39;,
        age:18,
        sex:&#39;女&#39;
      },{
        name:&#39;lily&#39;,
        age:18,
        sex:&#39;女&#39;
      },{
        name:&#39;lily&#39;,
        age:18,
        sex:&#39;女&#39;
      }]
    },
    methods:{
      addPerson:function(){
        this.items.push(this.newitems)//往items中添加newitems
        this.newitems = {name:&#39;&#39;,age:&#39;18&#39;,sex:&#39;女&#39;}
      },//添加元素
      deletePerson: function(index){
        // 删一个数组元素
        this.items.splice(index,1);
      }
    }
  })
</script>
</html>

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