摘要： LINQ的IN：var queryResult = from p in db.Productswhere (new int?[] {1,2}).Contains(p.CategoryID)select p;LINQ的IN解析成SQL：SELECT [t0].[ProductID], [t0].[ProductName], [t0].[SupplierID], [t0].[CategoryID], [t0].[QuantityPerUnit], [t0].[UnitPrice], [t0].[UnitsInStock], [t0].[UnitsOnOrder], [t0].[ReorderLev 阅读全文