C# XML中的转义字符操作

using System.IO;
using System.Xml;
public string ToXML(string str)
  {
   StringReader Reader = new StringReader(str);
   XmlDocument xml = new XmlDocument();
   xml.Load(Reader);
   return xml.InnerText.ToString();
   
  }

using System.IO;
using System.Runtime.Serialization;
public string ToXML(string str)
  {
   using (MemoryStream ms = new MemoryStream())
   {
    XmlObjectSerializer sz = new DataContractSerializer(obj.GetType());
    sz.WriteObject(ms, str);
    string res = Encoding.UTF8.GetString(ms.ToArray());
    return res;
   }
  }

string sample = @"Hello";
string sample = @"Hello\tworld"; //生成Hello\tworld

string sample=@"C:\My Documents\sample.txt";
//结果为：C:\My Documents\sample.txt，如同语句：string sample="C:\\My Documents\\sample.txt"

String s=@" " "Hi"""; //注意：两边都有3个引号