修改字符串中的char [英] modify a char in string

问题描述

您好，


在C＃中，我们不能直接修改字符串中的字符吗？我无法在任何地方找到这个方法。


我希望这样的东西能起作用，但它并没有


string myStr =" blah'';

myStr [3] =''e'';


提前致谢你的评论。

Hello,

Is it true that in C# we can''t modify directly a character in a string? I
can''t find the method anywhere.

I would expect something like this should work,but it doesn''t

string myStr = "blah'';
myStr[ 3 ] = ''e'';

Thanks in advance for your comment.

推荐答案

Cudnt找到一个直接的方法，但这里是间接方式之一


//未编译 - 可能有语法错误

string str =" blah";

char [] arr = str.ToCharArray（）;

arr [3] =''e'';

str = new string（arr）;


HTH

rawCoder


" Zeng" <泽****** @ hotmail.com>在留言中写道

新闻：％2 ****************** @ TK2MSFTNGP14.phx.gbl ...

Cudnt find a direct method either but here is one of the indirect way

// Not Compiled-might have syntax errors
string str = "blah";
char[] arr = str.ToCharArray();
arr[3]=''e'';
str = new string( arr );

HTH
rawCoder

"Zeng" <Ze******@hotmail.com> wrote in message
news:%2******************@TK2MSFTNGP14.phx.gbl...

您好，

在C＃中，我们不能直接修改字符串中的字符吗？我无法在任何地方找到这种方法。

我希望这样的东西能起作用，但它不会发出串联myStr =" blah'';
myStr [3] =''e'';

提前感谢您的评论。

Hello,

Is it true that in C# we can''t modify directly a character in a string? I
can''t find the method anywhere.

I would expect something like this should work,but it doesn''t

string myStr = "blah'';
myStr[ 3 ] = ''e'';

Thanks in advance for your comment.

你好，


这是正确的，你不能直接修改字符串，但是需要使用SubString重新组装它。 /插入/删除等


string myStr =" blah";

int pos = 3;

myStr = myStr .Substring（0，pos）+''c''+ myStr.Substring（++ pos，

myStr.Length - pos）;


或你可以像rawCoder那样说并使用ToArray并更改char []


-

Happy Coding！

Morten Wennevik [C＃MVP]

Hi Zeng,

It is correct, you cannot modify a string directly, but will need to
reassemble it, using SubString/Insert/Remove etc.

string myStr = "blah";
int pos = 3;
myStr = myStr.Substring(0, pos) + ''c'' + myStr.Substring(++pos,
myStr.Length - pos);

Or you can do as rawCoder said and use ToArray and change the char[]

--
Happy Coding!
Morten Wennevik [C# MVP]

Hello Zeng，


你不能使用字符串对象上的索引器来设置字符，只读它们。


希望这个ps，

RBischoff

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Z>您好，

Z>

Z>在C＃中我们不能直接修改

Z>中的字符。串？我无法在任何地方找到这种方法。

Z>

Z>我希望这样的东西能起作用，但它不会是
Z>

Z> string myStr =" blah'';

Z> myStr [3] =''e'';

Z>在此先感谢您的评论。

Z>

Hello Zeng,

you can''t use the indexer on the string object to set chars, only read them.

Hope this helps,
RBischoff
-----------------------------------------
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http://www.mvps.org/vcfaq/ (C++ FAQ)
http://www.winterdom.com/mcppfaq/ (MC++ FAQ)
http://msdn.microsoft.com/visualc/whidbey/ (CLI)

Z> Hello,
Z>
Z> Is it true that in C# we can''t modify directly a character in a
Z> string? I can''t find the method anywhere.
Z>
Z> I would expect something like this should work,but it doesn''t
Z>
Z> string myStr = "blah'';
Z> myStr[ 3 ] = ''e'';
Z> Thanks in advance for your comment.
Z>

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