怎么用C语言每隔三秒建立一个以日期时间命名的文件？

具体实现的步骤如下： time_t now;struct tm *curTime;char filename[256];while(1){now = time(NULL);curTime = localtime(&now);sprintf(filename,"%04d-%02d-%02d %02d-%02d-%02d",curTime->tm_year+1900,curTime->tm_mon+1,curTime->tm_mday,curTime->tm_hou