staff need to study

1. Qt event loop

    <<design pattern c++ qt4>> ---- 9.3 QApplication and the Event loop

   <<gui programming with qt4>> -----7 event processing

   http://linux.die.net/man/2/sched_setscheduler

   QMutex, QThread, QSemaphore, QEventLoop

   http://blog.csdn.net/tingsking18/article/details/4991563

2.Qt debug method

    http://doc.qt.nokia.com/4.7/debug.html

3.C++ type cast

    static_cast, dynamic_cast, reinterpret_cast...

4.how to write qt shared library

5.LFS

6.i18n

http://hi.baidu.com/baowup/blog/item/c41ec954d1e29942564e0081.html

http://www.lslnet.com/linux/docs/linux-2401.htm

http://blog.csdn.net/cstk502/article/details/6583237

http://bbs.chinaunix.net/thread-2019323-1-1.html

http://www.cnblogs.com/hnrainll/archive/2011/05/07/2039700.html

http://www.linuxforum.net/doc/i18n-new.html

http://lnjzlk.blog.163.com/blog/static/24473025201155103157448/

http://56553655.iteye.com/blog/722713

http://www.linux.org.tw/CLDP/OLD/doc/i18n-introduction.html

C preprocessor

#pragma alloca????

文件的三个时间：

1.mtime: ls -l

2.ctime: modify time, ls -lc

3.atime: access time, ls -lu