Ant-design正则判断_未输入用户名和密码点击按钮提示输入

import {Form,Icon,Input,Button} from ‘antd‘

handleSubmit = e => {
    e.preventDefault();
    this.props.form.validateFields((err,values)=>{
         if(!err){
                 console.log(‘Received values of form:‘,values)
        }
    })        
}    

render(){
     const { getFieldDecorator }  = this.props.form;
}