说明：  文件名：Makefile 中文教程.pdf，linux/unix下编程的人不懂makefile就等于是白痴，不想做白痴的linux程序员，就先载分看看吧,
(filename:Guide book of Makefile(CHINESE EDITION).pdf, if the programer under linux/unix doesn t know about makefile, he is no more than an idiot, if you don t want to be an idiot linux programmer, download it an take a look at it, hoho.)