/// <summary>
/// 替換html中的特殊字符
/// </summary>
/// <param name="theString">需要進行替換的文本。</param>
/// <returns>替換完的文本。</returns>
public string HtmlEncode(string theString)
{
theString=theString.Replace(">", ">");
theString=theString.Replace("<", "<");
theString=theString.Replace(" ", "  ");
theString=theString.Replace("/"", """);
theString=theString.Replace("/'", "'");
theString=theString.Replace("/n", "<br/> ");
return theString;
}