getFieldValue取得值为undefined

代码如下：

import { Form, Input, Button} from 'antd';

const FormItem = Form.Item; 

class PCHeader extends React.Component { 

  handleSubmit(e){  
    e.preventDefault(); 
    var formData = this.props.form.form.getFieldsValue();
    console.log(formData);
    };


      let {getFieldProps} = this.props.form;

      return(

      
this.handleSubmit.bind(this)}>

        "账户">
          {
            "请输入您的账号" {...getFieldProps('r_userName')}/>
          }
        

      type="password" label="密码">
         {
           "请输入您的密码" {...getFieldProps('r_password')}/>
         }
       

       type="password" label="确认密码">
          {
            "请再次输入你的密码" {...getFieldProps('r_confirmPassword')}/>
           }
       

       type="primary" htmlType="submit">注册 

      );
    };
  }

但是用getFieldValue取得值为undefined
后来在官网上找到结局方案，修改部分代码如下：

 this.props.form.validateFields((err, values) => {

      if (!err) {
        console.log('Received values of form: ', values);
      }else{
        //处理错误
        console.log(err);
      }

    });