2种方式初始化，有什么区别？ [英] 2 ways to initialize, what's the difference?

问题描述

这两行之间有什么区别？


Dim args As Object（）= New Object（）{strText}

Dim args As Object （）= {strText}


args似乎也可以使用，比如说：


Me.Invoke（delegate，args）


Zytan

解决方案

2月16日下午2:38，Zytan < zytanlith ... @ yahoo.comwrote：

这两行之间有什么区别？


Dim args As Object（）= New Object（）{strText}

Dim args As Object（）= {strText}


args似乎可用于任何一个，比方说，像这样：


Me.Invoke（代表，args）


Zytan

没有区别。


-

Tom Shelton

有趣。两个都有效的另一个缺点。


括号用于填充数组，因此对于表格来说，表示

''Dim args As Object（ ）= {strText}''，编译器第二次猜到你并且

假设你实际意味着''Dim args As Object（）= New Object（）{strText}''。


如果你编译以下内容并看看结果与Lutz

Roeder''s Relector你会发现两种形式的语句都会发出

相同的IL。


公共类Form1


私人strText字符串


私有子Button1_Click（ByVal sender As Object，ByVal e As EventArgs）

处理Button1.Click


Dim args As Object（）= New Object（）{strText}


End Sub


Private Sub Button2_Click（ByVal sender As Object，ByVal e As EventArgs）

处理Button2点击


Dim args As Object（）= {strText}


End Sub


结束班级

Zytan < zy ********** @ yahoo.comwrote in message

news：11 ******************** **@a75g2000cwd.googlegr oups.com ...

这两行之间有什么区别？


Dim args As Object（）= New Object（）{strText}

Dim args As Object（）= {strText}


args似乎可用于任何一个，比如说，像这样：


Me.Invoke（代表，args）

Zytan

" Zytan" < zy ********** @ yahoo.comschrieb：

这两行之间有什么区别？

Dim args As Object（）= New Object（）{strText}

Dim args As Object（）= {strText}

没有区别（除了我会写''Dim Args（）As Object = {strText}''

;-)）。


-

MS Herfried K. Wagner

MVP< URL：http：//dotnet.mvps.org/>

VB< URL：http：//dotnet.mvps.org/dotnet/faqs/>

What is the difference between these two lines?

Dim args As Object() = New Object() {strText}
Dim args As Object() = {strText}

args seems usuable from either, say, like so:

Me.Invoke(delegate, args)

Zytan

解决方案

On Feb 16, 2:38 pm, "Zytan" <[e-mail]:

What is the difference between these two lines?

Dim args As Object() = New Object() {strText}
Dim args As Object() = {strText}

args seems usuable from either, say, like so:

Me.Invoke(delegate, args)

Zytan

There is no difference.

--
Tom Shelton

Interesting. Another foible where both are valid.

The brackets are used to populate an array so it appears that, for the form
''Dim args As Object() = {strText}'', the compiler second guesses you and
assumes you actually mean ''Dim args As Object() = New Object() {strText}''.

If you compile the following and have a look at the result with Lutz
Roeder''s Relector you will find that both forms of the statement emit
identical IL.

Public Class Form1

Private strText As String

Private Sub Button1_Click(ByVal sender As Object, ByVal e As EventArgs)
Handles Button1.Click

Dim args As Object() = New Object() {strText}

End Sub

Private Sub Button2_Click(ByVal sender As Object, ByVal e As EventArgs)
Handles Button2.Click

Dim args As Object() = {strText}

End Sub

End Class
"Zytan" <zy**********@yahoo.comwrote in message
news:11**********************@a75g2000cwd.googlegr oups.com...

What is the difference between these two lines?

Dim args As Object() = New Object() {strText}
Dim args As Object() = {strText}

args seems usuable from either, say, like so:

Me.Invoke(delegate, args)

Zytan

"Zytan" <zy**********@yahoo.comschrieb:

What is the difference between these two lines?

Dim args As Object() = New Object() {strText}
Dim args As Object() = {strText}

No difference (except that I''d write ''Dim Args() As Object = {strText}''
;-)).

--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://dotnet.mvps.org/dotnet/faqs/>

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