如何从c＃中的字符串中获取子字符串？

Question

我有以＆＃34; domain \ alias＆＃34;格式存储的字符串。我只需要在第二个字符串中存储域名。这样做的最短路径是什么？没有任何循环？

Answer 1

 public string GetUserNameFromServicePrinciple(string principleName)
        {
            string userName = principleName; //if input is just username and not a valid service principle name with domain

            if (!string.IsNullOrEmpty(principleName))
            {

                var splittedParts = principleName.Split(@"\".ToCharArray());
                userName = splittedParts.Length > 1 ? splittedParts[1] : principleName;
            }

            return userName;
         }