matlab编写的串口调试工具，数据接收部分采用中断方式，保证了实时的数据显示 。在获取端口部分采用了try catch 的方式，可以更加方便的选取端口。-this is a simple serial tool scr ipted by matlab. I used interrupt to ensure the instant display of received data.

VC++异常处理问题：try、throw和catch语句加到C++语言中去实现异常处理。-VC++ exception handling: try, throw and catch statement added to C++ language to implement exception handling.