需求：如果输入为空：提示不可为空，如果输入字段里有x字符串，提示不可带x，根据不同的情况提示不同的错误信息。
效果图如下：
代码如下：
import React, {Component} from 'react';import {Button, Modal, Form, Input} from 'antd';import styles from './index.less';const FormItem = Form.Item;const validateLimit = (rule, value, callback) => {console.log(rule);console.log(value);if (!value) {callback('图谱名称不可为空');}if (value.indexOf('x') !== -1) {callback('图谱名称不可出现 x 字样');} else {callback();}};class MapConstruction extends Component {constructor(props) {super(props);}render() {const {getFieldDecorator} = this.props.form;return (<div className={styles.container}><Form><FormItemlabel="图谱名称"labelCol={{span: 5}}wrapperCol={{span: 18}}>{getFieldDecorator('note', {rules: [{required: true,whitespace: true,message: ' '}, {validator: validateLimit}],})(<Input placeholder='请输入'/>)}</FormItem></Form></div>);}}export default Form.create()(MapConstruction);
