public interface UserMapper {
//查詢
@Select("select * from user where id=#{id}")
User selectUser(int id);
//查詢全部
@Select("select * from user")
List<User> selectUserList();
//增加數據
@Insert("insert into user (name) values(#{name})")
boolean insertUser(String name);
//修改用戶
@Update("update user set name=#{name} where id=#{id}")
boolean updateUser(@Param("name") String name,@Param("id") int id);
//刪除用戶
@Delete("delete from user where id=#{id}")
boolean deleteUser(int id);
}