用多线程技术的Delphi API 串口通信例子，应用程序只需调用API对读/写缓冲区操作即可，用到了一些API函数，比如CreatFile打开文件函数、Setupcomm设置通信缓冲区大孝ReadFile读串口操作等

-With multi-threading technology Delphi API serial communication example, the application simply call API for read/write buffer operation can use some API functions, such as opening files CreatFile function, Setupcomm communication buffer settings daxiao ReadFile read serial operation wait