有時候需要自己把日誌資訊儲存到日誌檔案中，沒有找到現成的函式，只好自己動手寫一個，完成相關功能。

void LOG(const char* ms, ... )
{
	char wzLog[1024] = {0};
	char buffer[1024] = {0};
	va_list args;
	va_start(args, ms);
	vsprintf( wzLog ,ms,args);
	va_end(args);

	time_t now;
	time(&now);
	struct tm *local;
	local = localtime(&now);
	printf("%04d-%02d-%02d %02d:%02d:%02d %s\n", local->tm_year+1900, local->tm_mon,
			local->tm_mday, local->tm_hour, local->tm_min, local->tm_sec,
			wzLog);
	sprintf(buffer,"%04d-%02d-%02d %02d:%02d:%02d %s\n", local->tm_year+1900, local->tm_mon,
				local->tm_mday, local->tm_hour, local->tm_min, local->tm_sec,
				wzLog);
	FILE* file = fopen("testResut.log","a+");
	fwrite(buffer,1,strlen(buffer),file);
	fclose(file);

//	syslog(LOG_INFO,wzLog);
	return ;
}
 

可能用到的標頭檔案

#include <time.h>

#include <stdarg.h>

#include <syslog.h>