java编写的点，线，四边形以及图形绘制，是彩色的哦！虽然简单，但是很适合初学者理解类的概念.-java write point, line, quadrilateral and graphics rendering, is the color of the Oh! Although simple, but very suitable for beginners to understand the concept of class.

用安卓手机控制蓝牙灯，能发出彩色的颜色，颜色非常准确，界面简洁，明了。可以任意选择颜色，可以调节亮度等。-With android bluetooth control lamp, can send out the color of the color, the color is very accurate, the interface simple and clear.Can choose any color, can adjust the brightness, etc.