本程序主要是用于实现画图，动态画橡皮线条-this program is mainly for the realization of drawing, painting dynamic rubber lines

实现基本的橡皮线画图功能，并带有简单的Tcp客户端通信界面，可以实现与服务器端的通信。-The realization of the basic shirr drawing function, and a Tcp client communication interface is simple, can communicate with the server.