//加密 Response.Redirect("DetailInfo.aspx?id=" + Convert.ToBase64String(System.Text.Encoding.Default.GetBytes("sp10006")).Replace("+","%2B")); //解密 string ID = System.Text.Encoding.Default.GetString(Convert.FromBase64String(Request.QueryString["id"].ToString().Replace("%2B","+")));
原文：http://www.cnblogs.com/xw2cc1314/p/4214810.html