C#操作并口

http://www.doc88.com/p-2794713468912.html

 

http://blog.csdn.net/pengqianhe/article/details/8021072

 

 

http://blog.csdn.net/pengqianhe/article/details/8021072

 

 

LPT1   LPT2   LPT3  连接的并口不同，地址不同