深入理解此代码，在液晶上，再去取点画波形，就会很容易，有此代码你可以很清楚的了解液晶的图形画法-In-depth understanding of this code, the LCD on the Zaiqu take stipple wave, it would be easy to have this code you can be a clear understanding of LCD graphic painting! !

用12864液晶显示一幅图形，包含基本的画点画线函数。-12864 LCD a graphic that contains the basic stipple line function.