struct tm serverTime;
serverTime.tm_year = wYear-1900;
serverTime.tm_mon = wMonth-1;
serverTime.tm_mday = wDay;
serverTime.tm_hour = wHour;
serverTime.tm_min = wMinute;
serverTime.tm_sec = wSecond;
serverTime.tm_isdst=-1; //注意：如果不加这一句代码，在android上mktime函数会返回-1，iOS上是正常的
m_serverTime = mktime(&serverTime);
