.empty [英] .empty
本文介绍了.empty的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
string.empty用于什么?
我不能说:if string.empty那么
我必须使用:if string =""然后
哪个好,我只想知道.empty的用途。
What is string.empty used for?
I can''t say: if string.empty then
I have to use: if string = "" then
which is ok, I just want to know what .empty is for.
推荐答案
CJ ,
有无穷无尽的方法可以判断字符串是否存在但是没有
包含任何字符。
其中一个是string.empy另一个字符串=""和string =没有
虽然初始化。
在这个新闻组中,一旦取得了字符串=""对于没有任何
字符的字符串。
但是我不会喋喋不休。唯一危险的一个可以是
string =什么都没有,因为那个测试以及预先没有的字符串没有
字符串(没什么)
我希望这会有所帮助,
Cor
" cj" < cj@nospam.nospam> schreef in bericht
news:uM ************** @ TK2MSFTNGP05.phx.gbl ...
CJ,
There are endless methods to tell that a string exist however does not
contain any character.
One of those is string.empy another one string="" and string=nothing
although that initializes.
In this newsgroup is once taken the string="" for the string without any
character.
However I would not botter to much. The only dangerous one can be the
string=nothing, because that test as well on a string that was in advance no
string (Is Nothing)
I hope this helps,
Cor
"cj" <cj@nospam.nospam> schreef in bericht
news:uM**************@TK2MSFTNGP05.phx.gbl...
什么是string.empty用于?
我不能说:if string.empty那么
我必须使用:if string =""那么没关系,我只是想知道.empty的用途。
What is string.empty used for?
I can''t say: if string.empty then
I have to use: if string = "" then
which is ok, I just want to know what .empty is for.
" cj" < cj@nospam.nospam> schrieb:
"cj" <cj@nospam.nospam> schrieb:
string.empty用于什么?
我不能说:if string.empty那么
我必须使用:if string = ""然后
这是好的,我只是想知道.empty的用途。
What is string.empty used for?
I can''t say: if string.empty then
I have to use: if string = "" then
which is ok, I just want to know what .empty is for.
\\\
如果x = String.Empty则
...
结束如果
///
>
在语义上相当于
\\\
如果x =""然后
...
结束如果
///
-
MS Herfried K. Wagner
MVP< URL:http://dotnet.mvps.org/>
VB< URL:http: //classicvb.org/petition/>
\\\
If x = String.Empty Then
...
End If
///
is semantically equivalent to
\\\
If x = "" Then
...
End If
///
--
M S Herfried K. Wagner
M V P <URL:http://dotnet.mvps.org/>
V B <URL:http://classicvb.org/petition/>
使用String.Empty将字符串初始化为零长度。
Dim s作为字符串
s = String.Empty
要检查字符串是否为零长度,请检查长度属性。
如果s.Length = 0那么
''...
结束如果
http://www.gotdotnet.com/team/fxcop/...ingLength。 HTML
-
======================
Clive Dixon
Digita Ltd.( www.digita.com )
" cj" < cj@nospam.nospam>在消息中写道
news:uM ************** @ TK2MSFTNGP05.phx.gbl ...
Use String.Empty to initialise strings to zero-length.
Dim s As String
s = String.Empty
To check whether a string is zero length, check the Length property.
If s.Length = 0 Then
''...
End If
http://www.gotdotnet.com/team/fxcop/...ingLength.html
--
======================
Clive Dixon
Digita Ltd. (www.digita.com)
"cj" <cj@nospam.nospam> wrote in message
news:uM**************@TK2MSFTNGP05.phx.gbl...
什么是string.empty用于?
我不能说:if string.empty那么
我必须使用:if string =""那么没关系,我只想知道.empty的用途。
What is string.empty used for?
I can''t say: if string.empty then
I have to use: if string = "" then
which is ok, I just want to know what .empty is for.
这篇关于.empty的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
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