画旋转的立方体图形，根据鼠标的变化和移动来改变立方体的旋转速度-Picture rotating cube graphics, according to the change and move the mouse to change the rotation speed of the cube

计算机图形学用于画3D图形，可旋转、移动，是很基础的图形学编码。-3D computer graphics used to draw graphics, rotate, move, is very basic graphics coding.