cocos2dx获取系统当前时间

以备往后需要，就做个记录。

        struct tm *tm;#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID || CC_TARGET_PLATFORM == CC_PLATFORM_IOS)        struct cc_timeval now;         CCTime::gettimeofdayCocos2d(&now, NULL);         tm = localtime(&now.tv_sec);#endif#if ( CC_TARGET_PLATFORM == CC_PLATFORM_WIN32 )        time_t timep;        time(&timep);        tm = localtime(&timep);#endif        int day = tm->tm_mday;        int hour = tm->tm_hour;