Quake 3 s MD3 Viewer (july 13, 2007), loads and displays a player and a weapon. Supports lighting, texture mapping and animation. Includes a sample player model with weapon. See README for how to use it. Note (1): it uses the POSIX opendir/read

读取目录操作，在linux下使用opendir操作目录，在windows下使用findfirst和findnext操作目录。-open dir

完成一个目录复制命令mycp，包括目录下的文件和子目录, 运行结果如下： beta@bugs.com [~/]# ls -l sem total 56 drwxr-xr-x3 beta beta 4096 Dec 19 02:53 ./ drwxr-xr-x8 beta beta 4096 Nov 27 08:49 ../ -rw-r r 1 beta beta128 Nov 27 09:31 Makefile -rwxr-xr-x1 beta beta 5705 Nov