Bresenham画圆算法程序，在320240LCD上验证通过，效果很好。输入圆心坐标和半径即可画圆。-Bresenham Algorithm for Circle program, verify through the 320240LCD good effect. Enter center coordinates and radius can draw a circle.

电池模型的测试实验， 用于验证电池的特性-Experimental testing of the battery model, Used to verify the characteristics of the battery