从Vue2的写法转变为Vue3的格式之后，会有一些写法和代码结构的改变，这里对一些重点进行介绍。
代码结构：
写法一(推荐)：
<script setup lang="ts">
import { ref, reactive } from 'vue'
import type { ElForm } from 'element-plus'
const myform = ref<InstanceType<typeof ElForm>>()
const formData = reactive({
name: '',
subject: '',
grade: ''
})
// 查找
const submitForm = () => {
const { name, subject, grade } = formData
console.log(name, subject, grade)
}
// 重置
const submitReset = () => {
myform.value?.resetFields()
}
</script>
<template>
<div class="mysearch">
<el-form :model="formData" label-width="80px" ref="myform">
<el-row :gutter="24">
<el-col :span="8">
<el-form-item label="名称" prop="name">
<el-input v-model="formData.name"></el-input>
</el-form-item>
</el-col>
<el-col :span="8">
<el-form-item label="学科" prop="subject">
<el-input v-model="formData.subject"></el-input>
</el-form-item>
</el-col>
<el-col :span="8">
<el-form-item label="年级" prop="grade">
<el-select v-model="formData.grade" placeholder="请选择">
<el-option label="一年级" value="shanghai"></el-option>
<el-option label="二年级" value="beijing"></el-option>
</el-select>
</el-form-item>
</el-col>
</el-row>
<el-row :gutter="20">
<el-col :span="2" :offset="19">
<el-button type="primary" size="medium" @click="submitForm">
查 询
</el-button>
</el-col>
<el-col :span="2" :offset="0">
<el-button type="primary" size="medium" @click="submitReset">
重 置
</el-button>
</el-col>
</el-row>
</el-form>
</div>
</template>
<style scoped lang="less">
.mysearch {
padding: 20px;
}
</style>
写法二：
<template>
<div class="mysearch">
<el-form ref="myform" :model="formData" label-width="80px">
<el-row :gutter="24">
<el-col :span="8">
<el-form-item label="名称" prop="name">
<el-input v-model="formData.name"></el-input>
</el-form-item>
</el-col>
<el-col :span="8">
<el-form-item label="学科" prop="subject">
<el-input v-model="formData.subject"></el-input>
</el-form-item>
</el-col>
<el-col :span="8">
<el-form-item label="年级" prop="grade">
<el-select v-model="formData.grade" placeholder="请选择">
<el-option label="一年级" value="shanghai"></el-option>
<el-option label="二年级" value="beijing"></el-option>
</el-select>
</el-form-item>
</el-col>
</el-row>
<el-row :gutter="20">
<el-col :span="2" :offset="19">
<el-button type="primary" size="medium" @click="submitForm"
>查 询</el-button
>
</el-col>
<el-col :span="2" :offset="0">
<el-button type="primary" size="medium" @click="submitReset"
>重 置</el-button
>
</el-col>
</el-row>
</el-form>
</div>
</template>
<script lang="ts">
import { defineComponent, reactive, ref } from 'vue'
import { ElForm } from 'element-plus'
export default defineComponent({
setup() {
const formData = reactive({
name: '',
subject: '',
grade: ''
})
const myform = ref<InstanceType<typeof ElForm>>()
// 查找
const submitForm = () => {
const { name, subject, grade } = formData
console.log(name, subject, grade)
}
// 重置
const submitReset = () => {
myform.value?.resetFields()
}
return {
formData,
myform,
submitForm,
submitReset
}
}
})
</script>
<style scoped lang="less">
.mysearch {
padding: 20px;
}
</style>
区别：
- 写法一由上到下，分别是JS、HTML、Css，类似于React的写法，逻辑也清晰
- 写法一由上到下，分别是HTML、JS、Css，和之前的Vue2写法类似
- 写法一的格式不需要将data,methods等内容进行导出，节省了代码量
重点：
1、Element Plus的官网Demo的代码里面没有写prop
<el-form-item label="Activity name">
<el-input v-model="form.name"></el-input>
</el-form-item>
为了实现数据的响应式，在写的时候需要自己绑定
2、使用el-form的ref需要引入ElForm
import { ElForm } from 'element-plus'
const myform = ref<InstanceType<typeof ElForm>>()到此这篇关于Vue3+Element+Ts实现表单的基础搜索重置等功能的文章就介绍到这了,更多相关Element Ts表单搜索重置内容请搜索编程网以前的文章或继续浏览下面的相关文章希望大家以后多多支持编程网！
