如何利用Vue表单处理实现表单的自动生成与预览

<template>  <div>    <el-form      :model="formData"      :rules="formRules"      ref="form"      label-width="100px"    >      <el-form-item        v-for="(field, index) in formFields"        :key="index"        :label="field.label"      >        <el-input          v-model="formData[field.prop]"          :placeholder="field.placeholder"        ></el-input>      </el-form-item>    </el-form>    <el-button type="primary" @click="previewForm">预览表单</el-button>  </div></template><script>export default {  data() {    return {      formData: {},      formFields: [],      formRules: {},    };  },  methods: {    previewForm() {      this.$refs.form.validate((valid) => {        if (valid) {          // 根据formData生成表单预览          // 实现自定义的表单预览逻辑        } else {          this.$message.error('表单校验失败');          return false;        }      });    },  },};</script>

<template>  <div>    <h2>表单预览</h2>    <div v-for="(field, index) in formFields" :key="index">      <label>{{ field.label }}</label>      <p>{{ formData[field.prop] }}</p>    </div>  </div></template><script>export default {  props: {    formData: {      type: Object,      required: true,    },    formFields: {      type: Array,      required: true,    },  },};</script>

<template>  <div>    <form-generator      :formFields="formFields"      :formData="formData"    ></form-generator>    <form-preview      :formFields="formFields"      :formData="formData"    ></form-preview>  </div></template><script>import FormGenerator from '@/components/FormGenerator.vue';import FormPreview from '@/components/FormPreview.vue';export default {  components: {    FormGenerator,    FormPreview,  },  data() {    return {      formFields: [        { label: '姓名', prop: 'name', placeholder: '请输入姓名' },        { label: '年龄', prop: 'age', placeholder: '请输入年龄' },        { label: '性别', prop: 'gender', placeholder: '请输入性别' },      ],      formData: {},    };  },};</script>