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elment-plus的表单组件的标签有el-form,el-form-item。
单个el-form标签内包裹若干个el-form-item,el-form-item包裹具体的表单组件，如输入框组件，多选组件，日期组件等。
el-form组件的主要作用是：提供统一的布局给其他表单组件，其他组件可以继承表单组件的size,以及规则校验
form表单主要属性如下：
| 属性名 | 说明 | 默认值 |
|---|---|---|
| model | 表单数据对象 | — |
| rules | 表单验证规则 | — |
| inline | 行内表单模式 | false |
| label-position | left right label-width | right |
| label-width | ‘50px’ auto | ‘’ |
| show-message | 是否显示校验错误信息 | true |
| inline-message | 是否以行内形式展示校验信息 | false |
| status-icon | 是否在输入框中显示校验结果反馈图标 | false |
| size | 表单尺寸 |
form-item 主要属性如下：
| 属性名 | 说明 | 默认值 |
|---|---|---|
| prop | validate,resetField时使用，一般和v-model值保持一致 | — |
| label | 标签文本 | — |
用法示例
<script setup lang="ts">
import { onMounted, reactive, ref } from 'vue'
import type { FormInstance,FormRules } from 'element-plus'const formRef = ref<FormInstance>()interface Good {goodName:stringstock:numbercreateDate:Datedescription:string
}const checkStock = (rule: any, value: any, callback: any) => {console.log("checkStock ",value)if (!value) {return callback(new Error('Please input the age'))}setTimeout(() => {if (!Number.isInteger(value)) {callback(new Error('Please input digits'))} else {if (value < 10) {callback(new Error('stock must be greater than 10'))} else {callback()}}}, 1000)
}const ruleForm=reactive<FormRules<Good>>({goodName:[{required:true,message:"please input goodName",trigger:'change'}],stock:[{validator:checkStock}]
})const goodForm=ref<Good>({goodName:"",stock:10,createDate:new Date(),description:""
});const submitForm=()=>{formRef.value.validate((valid:Boolean)=>{if (valid){console.log("submit success ",goodForm) ;}else{console.log("form validate error ");}})
}const resetForm=()=>{formRef.value.resetFields()
}</script><template><el-form :model="goodForm" status-icon label-position="left" label-width="auto" ref="formRef" :rules="ruleForm"><el-form-item label="goodName" prop="goodName"><el-input v-model="goodForm.goodName" placeholder="please enter goodName"></el-input></el-form-item><el-form-item label="stock" prop="stock"><el-input-number v-model="goodForm.stock" :step="1"></el-input-number></el-form-item><el-form-item label="createDate" prop="createDate"><el-date-picker type="date" v-model="goodForm.createDate" format="YYYY-MM-DD" clearable></el-date-picker></el-form-item><el-form-item label="description" prop="description"><el-input type="textarea" v-model="goodForm.description" placeholder="please enter description"></el-input></el-form-item><el-form-item><el-button type="primary" @click="submitForm">submit</el-button><el-button @click="resetForm">reset</el-button></el-form-item></el-form></template><style scoped></style>
https://element-plus.org/zh-CN/component/form.html#form-attributes