breseham画线程序，通过在每列像数中确定与理想直线的像数来进行直线的扫描转换

目前一般只能画标准的椭圆，本代码实现了画斜椭圆，这个程序主要的思想来自Breseham算法！-Can only draw the current standard ellipse, the implementation of the code draw oblique oval, the main idea of this process from Breseham algorithm!

DDA算法与Breseham算法来画直线或者画圆-DDA algorithm Breseham algorithm to draw a straight line or circle

采用VC++编写的画线程序，有3种实现算法，包括DDA，Midpoint，Breseham，计算机图形学。(Drawing a line using C++ written procedures, there are three kinds of realization of algorithms, including the DDA, Midpoint, Breseham, computer graphics.)