获取unix系统时间，格式化输出的方法1

gistfile1.txt

time_t rawtime;
struct tm * timeinfo;
char buffer[80];

time(&rawtime);
timeinfo = localtime (&rawtime);

strftime(buffer,80,"%F_%H-%M-%S",timeinfo);
LOG_INFO(g_logger, "AntTranscoder: strftime " + string(buffer));
//------------------------------------------------------------------------

struct tm* p = localtime(&process_start_time);
char ss[200];
sprintf(ss, "%4.4d/%2.2d/%2.2d %2.2d:%2.2d:%2.2d", (1900 + p->tm_year), (1 + p->tm_mon), p->tm_mday, p->tm_hour, p->tm_min, p->tm_sec);
root["process_start_time"] = string(ss);