使用spcomm控件进行串口通信的程序，包括数据的发送与接收，同时采用定时发送的方式，delphi语言编写。-spcomm used for serial communication control procedures, including data transmission and reception. Timing also adopted this approach, delphi language.

DELPHI源代码-读卡器开发 #ifndef _EXPORT_FUNC_H_ #define _EXPORT_FUNC_H_ //return successful result #define LIB_SUCCESS 0 //return failed result #define LIB_FAILED 1 #define MAX_RF_BUFFER 1024 /******** 功能：获取动态库版本号 2字节 ****************