#define SYSTEM_DEBUG(fmt,...) printf("%s(%u):"fmt,__func__,__LINE__,##__VA_ARGS__)

这是一个 C 语言中的宏定义，它定义了一个名为 SYSTEM_DEBUG 的宏，用于输出调试信息。

其中，`fmt` 是一个字符串，用于指定输出字符串的格式。`...` 是一个可变参数列表，用于向 `fmt` 中的转换说明符提供值。`__func__` 是一个预定义宏，用于获取当前函数的名称。`__LINE__` 是一个预定义宏，用于获取当前代码行号。

整个宏定义使用了 `printf` 函数来输出调试信息。`printf` 函数的第一个参数是一个字符串，用于指定输出字符串的格式。在这个字符串中，`%s` 转换说明符用于输出当前函数的名称，`%u` 转换说明符用于输出当前代码行号。`fmt` 参数用于传递额外的格式化字符串，`__VA_ARGS__` 用于传递可变参数列表。

例如，下面的代码将输出 DEBUG 信息：

int num = 100;
float pi = 3.14;

SYSTEM_DEBUG("num = %d, pi = %f\n", num, pi);

输出结果类似于：

main(10):num = 100, pi = 3.140000

相关问题

#define MhDebug(fmt,...) { do{ LogLevelPrint(MH_LOG_DEBUG, fmt "<%s@%d>\r\n", ##__VA_ARGS__, MH_CODE_FUNC_LINE); }while(0); }的意思

这段代码是一个宏定义，用于在程序中输出调试信息。具体来说，它定义了一个名为"MhDebug"的宏，宏的定义包括一个格式化字符串(fmt)和可变参数(...),其中fmt和可变参数(...)用于指定输出信息的格式及内容。宏的实现是通过调用LogLevelPrint函数实现的，LogLevelPrint函数需要传入三个参数：日志级别(MH_LOG_DEBUG)、格式化字符串和可变参数。其中，MH_LOG_DEBUG是一个枚举类型，用于表示调试信息的级别。在输出时，宏会将格式化字符串(fmt)和可变参数(...)传递给LogLevelPrint函数，并在最后加上当前代码所在的函数名和行号(MH_CODE_FUNC_LINE)，最终输出调试信息到控制台或日志文件中。

把这段代码转化为python代码（package service import ( "encoding/json" "errors" "fmt" "gin-syudy/api/device/req" "gin-syudy/define" "gin-syudy/models" "gin-syudy/mqtt" "gin-syudy/tools/resp" "gin-syudy/utils" mq "github.com/eclipse/paho.mqtt.golang" "github.com/gin-gonic/gin" "log" "net/http" "strconv" "time" ) // DeviceController 控制设备 // @BasePath /api/v1 // @Description 启动对应设备 // @Tags 启动设备 // @param identity query string false "Identity" // @param controllerId query string false "controllerId" // @param controlState query string false "controlState" // @Success 200 {object} resp.Response "{"code":200,"data":[...]}" // @Failure 502 {object} resp.Response "{"code":502,"data":[...]}" // @Router /api/v1/device/start [Post] func DeviceController(c *gin.Context) { device := new(models.DeviceBasic) write := new(mqtt.Write) device.Identity = c.Query("identity") id, _ := strconv.Atoi(c.Query("controllerId")) fmt.Println(id) state, _ := strconv.Atoi(c.Query("controllerState")) fmt.Println(state) write.Id = uint32(id) write.State = uint32(state) if device.Identity == "" { resp.RespFail(c, http.StatusBadGateway, errors.New("必填参数为空"), resp.FoundFail) return } deviceBasic := device.GetTopicByIdentity() subTopic := "Device/" + deviceBasic.ItemName + "/" + deviceBasic.BridgeName + "/control" + deviceBasic.Secret fmt.Println(subTopic) sendTopic := "Host/" + deviceBasic.ItemName + "/" + deviceBasic.BridgeName + "/control" + deviceBasic.Secret fmt.Println(sendTopic) dataChan := make(chan *mqtt.StartDataResp, 1) mqtt.SubscribeMessage(subTopic, func(client mq.Client, message mq.Message) { fmt.Printf("MESSAGE : %s\n", message.Payload()) fmt.Printf("TOPIC : %s\n", message.Topic()) subscribeStartData := new(mqtt.StartDataResp) err := json.Unmarshal(message.Payload(), &subscribeStartData) if err != nil { resp.RespFail(c, http.StatusBadGateway, err, "回调函数格式不正确") return } dataChan <- subscribeStartData }) startData := new(mqtt.StartData) startData.SampTime = time.Now().String() startData.CommandID = utils.GetUUid() startData.Write = write data, _ := json.Marshal(startData) err := mqtt.SendMessage(sendTopic, data) if err != nil { resp.RespFail(c, http.StatusBadGateway, err, resp.FoundFail) return } responseMessage := <-dataChan err, _ = mqtt.Unsubscribe(sendTopic) if err != nil { resp.RespFail(c, http.StatusBadGateway, err, "取消订阅失败") return } resp.RespOK(c, responseMessage, "控制成功") }）

以下是将给定的 Go 代码翻译为 Python 的代码：

import json
import logging
import time
from http import HTTPStatus

import paho.mqtt.client as mqtt
from flask import jsonify, request

from service.models import DeviceBasic
from service.mqtt import SendMessage, SubscribeMessage, Unsubscribe
from service.tools.resp import RespFail, RespOK
from service.utils import GetUUid

# DeviceController
# 控制设备
# @BasePath /api/v1
# @Description 启动对应设备
# @Tags 启动设备
# @param identity query string false "Identity"
# @param controllerId query string false "controllerId"
# @param controlState query string false "controlState"
# @Success 200 {object} resp.Response "{"code":200,"data":[...]}"
# @Failure 502 {object} resp.Response "{"code":502,"data":[...]}"
# @Router /api/v1/device/start [Post]
def DeviceController():
    device = DeviceBasic()
    device.identity = request.args.get('identity', '')
    id = int(request.args.get('controllerId', 0))
    logging.debug(f"id: {id}")
    state = int(request.args.get('controllerState', 0))
    logging.debug(f"state: {state}")

    write = Write()
    write.id = id
    write.state = state

    if not device.identity:
        RespFail(HTTPStatus.BAD_GATEWAY, errors=["必填参数为空"])
        return

    deviceBasic = device.GetTopicByIdentity()
    subTopic = f"Device/{deviceBasic.ItemName}/{deviceBasic.BridgeName}/control{deviceBasic.Secret}"
    logging.debug(f"subTopic: {subTopic}")
    sendTopic = f"Host/{deviceBasic.ItemName}/{deviceBasic.BridgeName}/control{deviceBasic.Secret}"
    logging.debug(f"sendTopic: {sendTopic}")

    dataChan = []
    def on_message(client, userdata, message):
        logging.debug(f"MESSAGE : {message.payload}")
        logging.debug(f"TOPIC : {message.topic}")
        subscribeStartData = mqtt.StartDataResp()
        try:
            subscribeStartData = json.loads(message.payload)
        except json.JSONDecodeError as e:
            RespFail(HTTPStatus.BAD_GATEWAY, errors=[f"回调函数格式不正确: {str(e)}"])
            return
        dataChan.append(subscribeStartData)

    mqtt.SubscribeMessage(subTopic, on_message)

    startData = mqtt.StartData()
    startData.SampTime = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
    startData.CommandID = GetUUid()
    startData.Write = write
    data = json.dumps(startData, default=lambda obj: obj.__dict__, ensure_ascii=False)
    err = SendMessage(sendTopic, data.encode())
    if err:
        RespFail(HTTPStatus.BAD_GATEWAY, errors=[err])
        return

    responseMessage = dataChan[0]
    err = Unsubscribe(sendTopic)
    if err:
        RespFail(HTTPStatus.BAD_GATEWAY, errors=[f"取消订阅失败: {err}"])
        return

    RespOK(responseMessage, message="控制成功")