Problems with writing macros: Warning:backslash and newline separated by space-c

The original is because \ after a space of more than one

   Attach an example that has just been written for debugging: [cpp]  View plain  copy #define  DESAY_DEBUG (_string,myvalue)  \        do{\            c_ snprintf (desay_info, \                      250 - 1, \                       "\ndesay: file: %s   line#: %d  func: %s () \n !!!: Message is %s value is  %d\n ", \                      __FILE__, \                      __LINE__, \                      __func__, \                      _string, \                       myvalue); \           desayevent.ui4_msg_id= desay_message_id;\           desayevent.ui4_data1= (UINT32) &desay_info[0];\           a_am_get_app_handle_from_name ( &h_app_desay, "homepage");\           c_app_send_msg (H_app _desay,0,&desayevent,sizeof (desay_msg_t), null,null);\       }while (0)