from:http://stackoverflow.com/questions/699468/python-html-sanitizer-scrubber-filter 通过下面这个代码就可以把内容过滤成干净的HTML内容,说明,这个代码来自上面Stackoverflow的回答 Use lxml.html.clean! It's VERY easy! from lxml.html.clean import clean_html print clean_html(html) <html> <
1.DDA算法 DDA(Digital Differential Analyer):数字微分法 DDA算法思想:增量思想 公式推导: 效率:采用了浮点加法和浮点显示是需要取整 代码: void lineDDA(int x0, int y0, int x1, int y1, int color){ int x; float dy, dx, y, m; dx = x1 - x0; dy = y1 - y0; m = dy / dx; y = y0; for (x = x0; x <= x1; x++