Emit

http://www.cnblogs.com/zhuweisky/archive/2008/09/20/1294666.html

http://www.cnblogs.com/xiaoxiangfeizi/archive/2011/08/08/2130768.html

http://www.codeproject.com/Articles/3778/Introduction-to-IL-Assembly-Language

 http://www.cnblogs.com/gecko/archive/2008/08/18/1270290.html