C＃用一个反斜杠写一个路径和用两个反斜杠写一个路径有什么区别 [英] C# what is the difference between writing a path with one backslash and writing a path with two backslash

问题描述

写C：\Program Files和写C：\\Program Files有什么区别？

以及为什么我们有时写@ \.. 。

What is the difference between write "C:\Program Files" and write "C:\\Program Files"?
and why we write sometimes "@\"...

推荐答案

因为反斜杠字符在字符串中有特殊含义：它说将此字符与下一个字符组合 - 并用实际的特殊代码替换它们字符串



所以 \ n 是换行符， \是字符串中的双引号， \\ 是字符串中的反斜杠。



啊，但是...前缀带有'@'字符的字符串文字将其关闭，所以反斜杠又是一个普通字符，如果你想在字符串中输入双引号，你可以输入两个：

Because the backslash character has a special meaning in strings: it says "Combine this character with the next one - and replace them with a special code in the actual string"

So \n is a Newline character, \" is a double quote in the string, and \\ is a backslash in the string.

Ah, but... prefixing a string literal with an '@' character turns that off, so backslash is a normal character again, and if you want to enter a double quote into the string you enter two together:

Console.WriteLine(@"hello ""Paul""");

将写作

Will write

Hello "Paul"

写的时候

When you write

"C:\Program Files"

你得到一个错误 - 无法识别的转义序列

You get an error - "Unrecognised escape sequence"

"C:\\Program Files"

你得到的字符串

You get the string

C:\Program Files

和

And

@"C:\Program Files"

会给你同样的东西。



我们何时使用\

简单！

Will give you the same thing.

When do we use \"
Simple!

Console.WriteLine("hello \"Paul\"");

这对你有帮助..



http://social.msdn.microsoft.com/Forums/en-US/accf32eb- 9471-4026-a679-96175080a78a / folder-or-file-location-slash-or- [ ^ ]

this will help you..

http://social.msdn.microsoft.com/Forums/en-US/accf32eb-9471-4026-a679-96175080a78a/folder-or-file-location-slash-or-[^]

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