asp.net替换和恢复html特殊字符

  /// <summary>

  /// 替换html中的特殊字符

  /// </summary>

  /// <param name="theString">需要进行替换的文本。</param>

  /// <returns>替换完的文本。</returns>

  public string HtmlEncode(string theString)

  {

  theString=theString.Replace(">", ">");

  theString=theString.Replace("<", "<");

  theString=theString.Replace("  ", "  ");

  theString=theString.Replace("  ", "  ");

  theString=theString.Replace("\"", """);

  theString=theString.Replace("\'", "'");

  theString=theString.Replace("\n", "<br/> ");

  return theString;

  }

  /// <summary>

  /// 恢复html中的特殊字符

  /// </summary>

  /// <param name="theString">需要恢复的文本。</param>

  /// <returns>恢复好的文本。</returns>

  public string HtmlDiscode(string theString)

  {

  theString=theString.Replace(">", ">");

  theString=theString.Replace("<", "<");

  theString=theString.Replace(" "," ");

  theString=theString.Replace("  ","  ");

  theString=theString.Replace(""","\"");

  theString=theString.Replace("'","\'");

  theString=theString.Replace("<br/> ","\n");

  return theString;

  }