Smith Chart: The Smith chart, invented by Phillip H. Smith (1905-1987),is a graphical aid or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission

用C#实现的即时通讯小程序，可以实现广播聊天和一对一的聊天-Implemented in C# instant messaging applet, and can chat one on one chat radio