说明：  用TC对计算机的串口进行编程，并作一个简单的串口查询通讯程序。用一条九针的DB-9串口通讯线将计算机的com1口和com2口相连，com1作为接受口，com2作为发送口。-with TC on the serial port of computer programming, and for a simple serial communication program inquiries. Using a 9-pin DB-9 serial communication lines to the computer com1 mouth and COM2 I connected com1 as I accept that I send as COM2.
(TC on the computer used to program the serial port, and a simple query of the serial communication program. With a 9-pin DB-9 serial communication line to the computer' s com1 and com2 port connected to the mouth, com1 as I accept, com2 as I send.-with TC on the serial port of computer programming, and for a simple serial communication program inquiries. Using a 9-pin DB-9 serial communication lines to the computer com1 mouth and COM2 I connected com1 as I accept that I send as COM2.)