运用netbean，基于java语言，bresenham算法，DDA算法画直线的比较-The use of netbean, based on the java language, bresenham algorithm, DDA draw a straight line algorithms comparison

利用DDA算法进行画线，确定两点通过DDA算法绘制直线-Draw a line using DDA algorithm to determine the two points a straight line drawn through the DDA algorithm