在delphi7.0中经常会因为没有通信控件而弄得很麻烦，SPCOMM是DELPHI7.0中较为实用的通讯控件-in delphi7.0 often because of the absence of communication control, and most of a lot of trouble, SPCOMM DELPHI7.0 is the more practical Communication Control

Delphi 本身没有串口控件，这个是一款不错的串口控件。-Delphi does not have serial port control, this is a good serial port control.

解决Spcomm控件使用过程中，代码正确却不能接受信号的问题。是个小技巧-Solve Spcomm control use, but can not accept the correct code signal problems. Is a small skill