VML简易画图板，只能在IE中使用，可以画矩形圆形线段-VML-Drawing-PAD

计算机网线段开计算机自动关闭(网吧专用)-Computer network segments to open the computer automatically shut down (netbars only)

作为组件能快速生成Web动态图表（普通的线段图、直方图，饼图等），数据可选择性的从数据库中导入或导入.xml文件-As components can quickly generate Web dynamic chart (common line chart, histogram, pie chart, etc.), data can be selected the to import or import.Xml file

判断两条线段的相关算法，相交、求一点到线段的距离、求线段的交点、求线段的斜率。(Judge the two line segment correlation algorithm, intersection, seek a point to the line distance, the intersection of the line segment, the slope of the line segment)