用vb2010制作的串口调试助手，已经过测试，绝对没问题，十六进制发送绝对没问题，现在网上有很多的串口调试助手的十六进制发送都有问题的-Produced by vb2010 serial debugging assistant, has been tested, absolutely no problem, send hex absolutely no problem, and now the Internet has had a lot of problems sending hexadeci