这里的示例非常棒，帮助我解决了当前的“挑战”，以一种更可读的方式分割rsa密钥。基于Steve Coopers的解决方案:

    string Splitstring(string txt, int n = 120, string AddBefore = "", string AddAfterExtra = "")
    {
        //Spit each string into a n-line length list of strings
        var Lines = Enumerable.Range(0, txt.Length / n).Select(i => txt.Substring(i * n, n)).ToList();
        
        //Check if there are any characters left after split, if so add the rest
        if(txt.Length > ((txt.Length / n)*n) )
            Lines.Add(txt.Substring((txt.Length/n)*n));

        //Create return text, with extras
        string txtReturn = "";
        foreach (string Line in Lines)
            txtReturn += AddBefore + Line + AddAfterExtra +  Environment.NewLine;
        return txtReturn;
    }

呈现一个具有33个字符宽度和引号的RSA-key是很简单的

Console.WriteLine(Splitstring(RSAPubKey, 33, "\"", "\""));

输出:

希望有人觉得它有用…

根据Guffa的答案，在扩展类中使用:

public static string[] Lines(this string source) {
    return source.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);
}

string[] lines = text.Split(
  Environment.NewLine.ToCharArray(), 
  StringSplitOptions.RemoveEmptyStrings);

RemoveEmptyStrings选项将确保由于\n跟在\r后面而没有空条目

(编辑以反映注释:)注意，它也会丢弃文本中的真正空行。这通常是我想要的，但这可能不是你的要求。

愚蠢的回答:写到一个临时文件，这样你就可以使用可敬的 文件。readline

var s = "Hello\r\nWorld";
var path = Path.GetTempFileName();
using (var writer = new StreamWriter(path))
{
    writer.Write(s);
}
var lines = File.ReadLines(path);

Regex也是一个选项:

    private string[] SplitStringByLineFeed(string inpString)
    {
        string[] locResult = Regex.Split(inpString, "[\r\n]+");
        return locResult;
    }

好吧，实际上拆分应该做:

//Constructing string...
StringBuilder sb = new StringBuilder();
sb.AppendLine("first line");
sb.AppendLine("second line");
sb.AppendLine("third line");
string s = sb.ToString();
Console.WriteLine(s);

//Splitting multiline string into separate lines
string[] splitted = s.Split(new string[] {System.Environment.NewLine}, StringSplitOptions.RemoveEmptyEntries);

// Output (separate lines)
for( int i = 0; i < splitted.Count(); i++ )
{
    Console.WriteLine("{0}: {1}", i, splitted[i]);
}