我们可以利用COM组件提供的OnRecieve事件（当串口有数据收到的时候发生）来启动一个事件函数来读取串口数据-We can use the COM components provided by the OnRecieve events (when the serial data are received by the time of the year) to launch an event function to read data

在原有socket程序上，通过onrecieve和onsend两种CSocket类 实现双工通信-Socket in the original program, through onrecieve and onsend CSocket class implements two-way communication