这是我的一个小子程序，是关于串口通信的，其中有些的放认为思想还可以，希望大家提出宝贵意见，我是个初学者，希望大家以后多多帮助-This is one of my kid program, is about serial communication, some of which can put that thought, hope you valuable advice, I am a beginner, I hope you lots of help after