摘要： 参考资料：http://www.codeproject.com/Articles/37932/Simple-Sample-with-Entity-Frameworkhttp://blogs.msdn.com/b/adonet/archive/2010/07/14/ctp4announcement.aspxhttp://www.microsoft.com/download/en/details.aspx?displaylang=en&id=8812http://blogs.msdn.com/b/adonet/archive/2010/07/14/ctp4piwalkthrough.asp 阅读全文