VS2008 对话框串口程序，点击按扭，发送默认程序里的指令，返回的数据会在接收框内显示，并有指示灯，测试已经通过，可以直接运行,让我们一起努力！-VS2008 dialog serial program, click button, send the default program of instruction, the returned data will be displayed in the receiving box and has a light, the test has been