What is the fundamental difference between

] In vb.net, there is a default instance in each window, while C#does not. This difference originated from different design concepts of different languages. VB.NET's (name)

default examples of vb.net: ] The default instance design of VB.NET is designed to facilitate programmers who have migrated from VB6. VB6 programmers are often difficult to distinguish the types and types of types and types.

There is no default instance in the default instance in the C#: C#emphasizes object -oriented principles and requires programmers to explicitly create instances. Unlike VB.NET, C#does not allow any attributes and methods to name the global name space. Therefore, C#does not provide a mechanism for defining the definition type default instance.

code example:

// The only way FORM1 FRM = New Form1 (); frm.show ();

In vb.net, it can be implicitly instantiated or explicitly instantiated:

'Common method one Form1.show () 'Common method 2 DIM FRM As New Form1 () FRM.SHOW ()

// 唯一方法
Form1 frm = new Form1();
frm.Show();

, and call

' 常用方法一
Form1.Show()

' 常用方法二
Dim frm As New Form1()
frm.Show()

form1 directly created.

C#can it simulate the default instance? ] can simulate the default instance by using static attributes in the C#window class to simulate the default instance. However, this method is not elegant enough and requires additional model code. The reasons for designing differences: The design differences between VB.NET and C#reflect their respective target users. The default instance characteristics of VB.NET are designed to help programmers who move from VB6. C#focuses on object -oriented principles and encourages the instantiated classes, so that developers can better control the code.