通讯模拟器，项目中编写的，原创，delphi7环境下无错误，完全开源，可选择串口，实现串口通信，改编通信协议即可自己用。第三方控件要求：SPCCOM，已附在安装包中！-Communications simulator, project preparation, originality, under delphi7 environment error-free, fully open source, optional serial port, serial communication, communication protocols adapted to their own use. Third-party control requirements: SPCCOM, has been attached to the installation package!