摘要：
http://www.cnblogs.com/Barton131420/archive/2009/09/04/1560237.htmlhttp://weblogs.asp.net/zeeshanhirani/archive/2008/08/16/single-table-inheritance-in-entity-framework.aspxtruning json into a expand objecthttp://coderjournal.com/2010/07/turning-json-into-a-expandoobject/ 阅读全文