摘要：Enumerable.OrderBy<TSource, TKey> Method (IEnumerable<TSource>, Func<TSource, TKey>)class Pet{ public string Name { get; set; } public int Age { get; set; }}public static void OrderB... 阅读全文

摘要：Visual Studio 2008 里修改数据库表结构报错：You cannot save changes that would result in one or more tables being re-created …… 阅读全文