C++临时打日志

#define TRACE_EXT(xFormat, ...)\
{\
	CTime time = CTime::GetCurrentTime();\
	FILE *pFile;\
	pFile = fopen("C:\\CPGServerLog.txt", "ab");\
	static char pszBuf[512];\
	sprintf_s(pszBuf, 512, xFormat, __VA_ARGS__);\
	std::stringstream ssmsg;\
	ssmsg << time.GetYear() << "." << time.GetMonth() << "." << time.GetDay() << " " << time.GetHour() << ":" << time.GetMinute() << ":" << time.GetSecond() << "  " << __FILE__ << " [" << __LINE__ << "] " << std::endl << "    " << pszBuf << std::endl;\
	if (NULL != pFile)\
{\
	fprintf(pFile, "%s\n", ssmsg.str().c_str());\
	fclose(pFile);\
}\
}

使用示例：

TRACE_EXT("我的字符串:%s\n", szJson);