virtools应用，在文章中提到了，基于virtools 引擎开发，游戏中连续攻击系统，脚本代码的编写，分享给需要的朋友-virtools applications mentioned in the article, based on virtools engine development, the game continuously attack the system, the scr ipt code is written to share a friend in need

在Arc engine二次开发中在MapControl控件上进行线、面的编辑操作。-Editing operations carried Arc engine secondary development line and surface controls on MapControl.