先放一些链接：
http://blog.csdn.net/terminatorss/article/details/4481874
CSDN问题：
http://ask.csdn.net/questions/148143
批量裁剪l
http://blog.csdn.net/wjsnoweagle/article/details/27196549
http://blog.csdn.net/longronggis/article/details/7953053
百度知道:
https://zhidao.baidu.com/question/402168243.html
官网GP clip介绍
http://resources.arcgis.com/en/help/main/10.1/index.html#//000800000004000000
dnblong:
http://www.cnblogs.com/imihiroblog/archive/2012/05/06/2486636.html
search key works:
AnalysisTools.Clip
C# AE GP clip
C# AE clip怎么写
其他：treecombobox
http://download.csdn.net/download/limei125/4495059#comment