protected void Page_Load(object sender, EventArgs e) { //加密算法 string username = "我是陈建勇"; //MD5加密 - 得到32位加密数据,数据不好解密。过于复杂。 username =FormsAuthentication.HashPasswordForStoringInConfigFile(username, "MD5"); //SHA1加密 - 得到40位加密数据,数据不好解密。过于复杂。 string username1 = FormsAuthentication.HashPasswordForStoringInConfigFile(username, "SHA1"); Response.Write(username+"<br>"); Response.Write(username1+"<br>"); //解密算法 //普通加密 string s = "我是陈建勇"; string encodestr = ""; byte[] bytes = System.Text.Encoding.GetEncoding(0).GetBytes(s); try { encodestr = Convert.ToBase64String(bytes); Response.Write("aa"); } catch { encodestr = s; Response.Write("bb"); } Response.Write(encodestr+"<br>"); //普通解密 string decodestr = ""; byte[] bytes1 = Convert.FromBase64String(encodestr); try { decodestr = System.Text.Encoding.GetEncoding(0).GetString(bytes1); Response.Write("cc"); } catch { Response.Write("dd"); decodestr = encodestr; } Response.Write(decodestr+"<br>"); //普通加密 string myname = "陈建勇"; myname = System.Web.HttpUtility.UrlEncode(myname, System.Text.Encoding.UTF8); Response.Write(myname+"<br>"); //普通解密 myname = System.Web.HttpUtility.UrlDecode(myname, System.Text.Encoding.UTF8); Response.Write(myname); }