我写了一个对所有符号进行url编码的c#方法:

    /// <summary>
    /// !#$345Hf} → %21%23%24%33%34%35%48%66%7D
    /// </summary>
    public static string UrlEncodeExtended( string value )
    {
        char[] chars = value.ToCharArray();
        StringBuilder encodedValue = new StringBuilder();
        foreach (char c in chars)
        {
            encodedValue.Append( "%" + ( (int)c ).ToString( "X2" ) );
        }
        return encodedValue.ToString();
    }

编辑:注意，这个答案现在已经过时了。请参阅下面Siarhei Kuchuk的答案以获得更好的解决方案

UrlEncoding会做你在这里建议的事情。对于c#，您只需使用HttpUtility，如前所述。

您还可以Regex非法字符，然后进行替换，但这变得更加复杂，因为您必须有某种形式的状态机(switch…用正确的字符替换。由于UrlEncode预先完成了这个操作，所以相当简单。

至于Linux和windows，有一些字符在Linux中是可以接受的，但在windows中是不可以接受的，但我并不担心这一点，因为文件夹名可以通过解码Url字符串返回，使用UrlDecode，因此您可以往返更改。

Ideally these would go in a class called "FileNaming" or maybe just rename Encode to "FileNameEncode". Note: these are not designed to handle Full Paths, just the folder and/or file names. Ideally you would Split("/") your full path first and then check the pieces. And obviously instead of a union, you could just add the "%" character to the list of chars not allowed in Windows, but I think it's more helpful/readable/factual this way. Decode() is exactly the same but switches the Replace(Uri.HexEscape(s[0]), s) "escaped" with the character.

public static List<string> urlEncodedCharacters = new List<string>
{
  "/", "\\", "<", ">", ":", "\"", "|", "?", "%" //and others, but not *
};
//Since this is a superset of urlEncodedCharacters, we won't be able to only use UrlEncode() - instead we'll use HexEncode
public static List<string> specialCharactersNotAllowedInWindows = new List<string>
{
  "/", "\\", "<", ">", ":", "\"", "|", "?", "*" //windows dissallowed character set
};

    public static string Encode(string fileName)
    {
        //CheckForFullPath(fileName); // optional: make sure it's not a path?
        List<string> charactersToChange = new List<string>(specialCharactersNotAllowedInWindows);
        charactersToChange.AddRange(urlEncodedCharacters.
            Where(x => !urlEncodedCharacters.Union(specialCharactersNotAllowedInWindows).Contains(x)));   // add any non duplicates (%)

        charactersToChange.ForEach(s => fileName = fileName.Replace(s, Uri.HexEscape(s[0])));   // "?" => "%3f"

        return fileName;
    }

感谢@simon-tewsi提供的非常有用的表格!

从。net Framework 4.5和。net Standard 1.0开始，你应该使用WebUtility.UrlEncode。相对于其他选择的优势:

It is part of .NET Framework 4.5+, .NET Core 1.0+, .NET Standard 1.0+, UWP 10.0+ and all Xamarin platforms as well. HttpUtility, while being available in .NET Framework earlier (.NET Framework 1.1+), becomes available on other platforms much later (.NET Core 2.0+, .NET Standard 2.0+) and it still unavailable in UWP (see related question). In .NET Framework, it resides in System.dll, so it does not require any additional references, unlike HttpUtility. It properly escapes characters for URLs, unlike Uri.EscapeUriString (see comments to drweb86's answer). It does not have any limits on the length of the string, unlike Uri.EscapeDataString (see related question), so it can be used for POST requests, for example.

如果你看不见系统。Web，更改项目设置。目标框架应该是。NET Framework 4“代替”。NET Framework 4客户端配置文件

我写了一个对所有符号进行url编码的c#方法:

    /// <summary>
    /// !#$345Hf} → %21%23%24%33%34%35%48%66%7D
    /// </summary>
    public static string UrlEncodeExtended( string value )
    {
        char[] chars = value.ToCharArray();
        StringBuilder encodedValue = new StringBuilder();
        foreach (char c in chars)
        {
            encodedValue.Append( "%" + ( (int)c ).ToString( "X2" ) );
        }
        return encodedValue.ToString();
    }