vue 使用 element ui动态添加表单

html部分

<div class="hello">
   <el-form :model="dynamicValidateForm" ref="dynamicValidateForm" label-width="100px" class="demo-dynamic">
  <el-form-item
    prop="email"
    label="邮箱"

  >
    <el-input v-model="dynamicValidateForm.email"></el-input>
  </el-form-item>
  <el-form-item
    prop="qq"
    label="QQ"

  >
    <el-input v-model="dynamicValidateForm.qq"></el-input>
  </el-form-item>
  <el-form-item
    prop="tel"
    label="电话"

  >
    <el-input v-model="dynamicValidateForm.tel"></el-input>
  </el-form-item>

  <el-row :gutter="20"  v-for="(domain, index) in dynamicValidateForm.domains" :key="domain.key">
    <div>
  <el-col :span="6" >

    <div>
        <el-form-item

    label='姓名'

    :prop="'domains.' + index + '.name'"

  >
    <el-input v-model="domain.name"></el-input>
  </el-form-item>

    </div>
    </el-col>
  <el-col :span="6">
    <div >
        <el-form-item

    label='年龄'
    :key="domain.key"
    :prop="'domains.' + index + '.age'"

  >
    <el-input v-model="domain.age"></el-input>
  </el-form-item>
      </div>
    </el-col>
  <el-col :span="6">
    <div >
        <el-form-item

    label="性别"
    :key="domain.key"
    :prop="'domains.' + index + '.six'"

  >
    <el-input v-model="domain.six"></el-input>
  </el-form-item>
      </div>
    </el-col>
    <el-col :span="6"><div>
      <el-button @click.prevent="removeDomain(domain)">删除</el-button>
      </div></el-col>
  </div>
</el-row>
  <el-form-item>
    <el-button type="primary" @click="submitForm('dynamicValidateForm')">提交</el-button>
    <el-button @click="addDomain">新增域名</el-button>
    <el-button @click="resetForm('dynamicValidateForm')">重置</el-button>
  </el-form-item>
</el-form>
  </div>

js部分

export default {
  name: "fromdatadt",
  data() {
    return {
      dynamicValidateForm: {
        domains: [
          {
            name: "",
            age: "",
            six: ""
          }
        ],
        email: "",
        qq: "",
        tel: ""
      }
    };
  },
  methods: {
    submitForm(formName) {
      console.log(JSON.stringify(this.dynamicValidateForm));
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();
    },
    removeDomain(item) {
      var index = this.dynamicValidateForm.domains.indexOf(item);
      if (index !== -1) {
        this.dynamicValidateForm.domains.splice(index, 1);
      }
    },
    addDomain() {
      this.dynamicValidateForm.domains.push({
        name: "",
        age: "",
        six: "",
        key: Date.now()
      });
    }
  }
};

提交如下：