import React, { useState } from 'react'; import { Form, Input, Switch, Button } from 'antd';   const Demo = () => {   const [switches, setSwitches] = useState({});     const onFinish = (values) => {     console.log('Received values of form: ', values);   };     return (     
                {(fields, { add, remove }) => (           <>             {fields.map((field, index) => (                                                  {                     setSwitches({ ...switches, [field.name]: checked });                   }}                 />                 {fields.length > 1 ? (                    {                       remove(field.name);                       setSwitches({ ...switches, [field.name]: undefined });                     }}                   >                     Delete                                    ) : null}                            ))}                             add()}>                  Add field                                                )}                                  Submit                     
   ); };   export default Demo;

        这个代码示例展示了如何使用Ant Design的Form和Form.List组件来创建一个可动态增减表单项的表单，并且每个表单项旁边都有一个Switch组件，这些Switch组件是受控的，即它们的状态会被保存在组件的状态中。当用户提交表单时，表单的数据以及Switch的状态都会被打印出来。