Update demo

Src/Asp.Net/SqlServerTest/Demo/DemoE_CodeFirst.cs

@@ -19,7 +19,7 @@ namespace OrmTest
                 InitKeyType = InitKeyType.Attribute,
                 IsAutoCloseConnection = true
             });
-            db.DbMaintenance.CreateDatabase(@"c:\"); 
+            db.DbMaintenance.CreateDatabase(); 
             db.CodeFirst.InitTables(typeof(CodeFirstTable1));//Create CodeFirstTable1 
             db.Insertable(new CodeFirstTable1() { Name = "a", Text="a" }).ExecuteCommand();
             var list = db.Queryable<CodeFirstTable1>().ToList();