很完善的串口通信库,已经修正网络上面流行的,不能够对于COM5-COM31进行通信的错误!!可以对于COM0-COM31进行读写.已经在VC++ C++BUILDER 环境下面测试过.-perfect Serial communication library, has been amended popular networks above, not for COM5 - COM31 communication mistake! ! be for COM0-for COM31 read and w