说明：  串口编程源程序 及编程详细过程 1.建立项目 2.在项目中插入MSComm控件 3.利用ClassWizard定义CMSComm类控制变量 4.在对话框中添加控件 5.添加串口事件消息处理函数OnComm() 6.打开和设置串口参数 7.发送数据
(Serial programming source code and programming details of the process 1. Establish the project 2. MSComm control insert in the project 3. CMSComm class using ClassWizard control variables defined in 4. Add controls in the dialog box 5. Add a serial port event message handler OnComm () 6. Open and set the serial port parameters 7. send data)