改变屏幕到16位彩色的演示，能设置屏幕到16位彩色。

对程序修改一下，可以支持设置屏幕的大小。

(参见：BA002 动态改变屏幕设置) -Change the screen to 16-bit color presentation, and can set the screen to 16-bit color. Modify the program, set the size of the screen can support. (See: BA002 dynamically change the screen settings)