/// <summary>
/// 把指定的字符串加密为可以通过Url传递的字符串
/// </summary>
/// <param name="rawString"></param>
/// <returns></returns>
public static string EncryptUrlString(string rawString)
{
//追加时间戳，方便后续判断
string nowTicks = DateTime.Now.Ticks.ToString(CultureInfo.InvariantCulture);
string newParam = string.Format("{0}-{1}", nowTicks, rawString);
string result = EncryptByTriple(newParam);
result = EncodingUtility.ToBase64FromGb2312(result);
result = HttpUtility.UrlEncode(result);
return(result);
}