模拟电梯程序，有控制面板。模拟真实的电梯运行过程。比较经典。只是画面有点粗糙。-simulated lift procedures, control panel. Simulate the real process of running the elevator. More classic. Just a little rough picture.

用Java开发FTP代理服务器l05 来自用户的控制进程的标准的FTP命令，向它 ... 箭头所指为解除阻塞的变互；-Java development FTP Proxy l05 from the user's control of the standards process orders FTP to it ... the meaning of the arrow changes to lift each other obstruction;