获取系统时间

//得到系统时间
CCString* HelloWorld::getSystemTime()
{

struct tm *tm;
#if (CC_TARGET_PLATFORM == CC_PLATFORM_WIN32)
//win32平台
time_t timep;
time(&timep);
tm = localtime(&timep);
#else
//android、ios平台

struct cc_timeval now;
CCTime::gettimeofdayCocos2d(&now, NULL);
tm = localtime(&now.tv_sec);
#endif
int year = tm->tm_year + 1900;
int month = tm->tm_mon + 1;
int day = tm->tm_mday;
int hour=tm->tm_hour;
int min=tm->tm_min;

CCString *string=CCString::createWithFormat("%d-%d-%d %d:%d",year,month,day,hour,min);

return string;

}