vue element动态渲染、移除表单并添加验证的实现

export default {
 name: 'vouchersDetail',
 data() {
  return {
   form: {
    regionName: '',
    regionCode: '',
  // 动态添加的对象数组
    azList: [
     {
      azName: '',
      logicCode: '',
      physicCode: ''
     }
    ]
   }
  }
 },
 computed: {
  // 至少保留一个动态表单的开关
  isShowCloseBtn() {
   return this.form['azList'].length > 1
  }
 },
 methods: {
  addItem() {
   // 点击添加表单的按钮，只需要将表单绑定的 value 作为对象 push 到对象数组
   this.form['azList'].push({
    azName: '',
    logicCode: '',
    physicCode: '',
    weight: ''
   })
  },
  deleteItem(index) {
   // 点击移除表单的按钮，根据点击的当前 index 移除对象数组的元素
   this.form['azList'].splice(index, 1)
  },
  goBack() {
   window.history.back(-1)
  }
 }
}

<div class="section-form" v-for="(item, index) in form.azList" :key="index"> 
 <span v-if="isShowCloseBtn" class="close" @click="deleteItem(index)">
  <i class="el-icon-close"></i>
 </span> 
 <el-form-item label="可用区名称："
  :rules="[{ required: true, message: '可用区名称不能为空' }]"
  :prop="'azList[' + index + '].azName'"
  label-width="150px"> 
  <el-input placeholder="请输入可用区名称" v-model="item.azName" :maxlength="30"></el-input> 
 </el-form-item> 
 <el-form-item label="逻辑可用区编码："
  :rules="[{ required: true, message: '逻辑可用区编码不能为空' }]"
  label-width="150px"
  :prop="'azList[' + index + '].logicCode'"> 
  <el-input placeholder="请输入唯一ID" v-model="item.logicCode" :maxlength="30"></el-input> 
 </el-form-item> 
 <el-form-item label="物理可用区编码："
  :rules="[{ required: true, message: '物理可用区编码不能为空' }]"
  label-width="150px"
  :prop="'azList[' + index + '].physicCode'"> 
  <el-input placeholder="请输入唯一ID" v-model="item.physicCode" :maxlength="30"></el-input> 
 </el-form-item>
</div>