可以找描出系统可用的串口，包括用USB扩展的-can delineate system can be used to find the serial port, including USB expansion

《Delphi串口通信工程开发实例导航》书中光盘中的内容，高校餐饮银卡系统，delphi+数据库+串口··可以参考下下·！ -" Delphi serial communication engineering example of navigation" CD-ROM in the contents of the book, college dining Silver system, delphi+ database+ serial port can refer to the

使用Delphi编写的5自由度机械臂仿真程序，通过控制舵机角度改变整体机械臂的位置，可以完成机械臂空间任意位置的精确移动-5 degrees of freedom robot arm simulation program written using Delphi, control the steering angle to change the position of the manipulator as a whole, can complete the precise movements o