电子白板，applet小程序界面简单。便于初学者理解-Whiteboard, small applet program interface simple. Facilitate understanding beginners

这是一个生成电子白板的程序，本人经过编译测试过，可以做电子白板开发的很好的参考-This is a procedure to generate whiteboard, I compiled the test, the whiteboard can be done to develop the good reference