为什么这个替换反斜杠不起作用？(Why isn't this replace of backslash working?)

为什么这个替换反斜杠不起作用？(Why isn't this replace of backslash working?)

所以我需要从字符串中删除转义的反斜杠（在我的例子中，路径就像“C：\ Program Files（x86）\ Microsoft Office \ Office14 \ WINWORD.EXE \”）。

要替换我已经尝试过以下内容：

String openWith = "C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE"; string newString = openWith.Replace(@"\\", @"\"); openWith = openWith.Replace(@"\\", @"\"); openWith = Regex.Replace(openWith,"\\\\","\\");

但这些都不起作用!! 有人能够向我解释为什么会这样吗？

先感谢您！

So I need to remove escaped backslashes from a string (in my case, a path simply like "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE\").

To replace I've tried the following:

String openWith = "C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE"; string newString = openWith.Replace(@"\\", @"\"); openWith = openWith.Replace(@"\\", @"\"); openWith = Regex.Replace(openWith,"\\\\","\\");

But none of these work!! Would anyone be able to explain to me why this may be?

Thank you in advance!

最满意答案

您的字符串不包含加倍的反斜杠。

"C:\\"的第一个反斜杠是一个转义字符，由C＃编译器解释。 但是在运行时，字符串只包含单个反斜杠。 您可以通过显示字符串的值来证明这一点：

String openWith = "C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE"; Console.WriteLine(openWith);

结果：

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE

请注意，输出中只有一个反斜杠。

看它在线工作： ideone

Your string doesn't contain doubled backslashes.

The first backslash in "C:\\" is an escape character which is interpreted by the C# compiler. At runtime however the string only contains single backslashes. You can prove this to yourself by displaying the value of the string:

String openWith = "C:\\Program Files (x86)\\Microsoft Office\\Office14\\WINWORD.EXE"; Console.WriteLine(openWith);

Result:

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE

Note that there are only single backslashes in the output.

See it working online: ideone