这是一款屏幕画笔，可以实现屏幕绘画功能，在windows屏幕上直接绘画-This is a brush screen, screen painting functions can be achieved in a direct painting windows on the screen

java screenpen,包括一些最基本的功能,有实际作用,也可作为初学的参考资料.-java Internet management system, including some basic functions, there is a practical role, but also can be used as reference for beginners.