实例可以参考一下百度的广告url传参方法
http://www.baidu.com/baidu.php?url=S6YK00aibotP-PHj1PrkhVXx5JlwU-CLmoGX8HHXbbP-nHVF2sQbuLIfpRGtqs2x_MNWa8beu0qTEdsLPQl9SNdKYwtucqMXmhB5m9t.DD_jxReiMsJN.THLAtq2d0nurl参数就是加密后的字符串。
http://www.baidu.com/baidu.php?url=S6YK00aibotP-PHj1PrkhVXx5JlwU-CLmoGX8HHXbbP-nHVF2sQbuLIfpRGtqs2x_MNWa8beu0qTEdsLPQl9SNdKYwtucqMXmhB5m9t.DD_jxReiMsJN.THLAtq2d0nurl参数就是加密后的字符串。
贴出代码
//tobase64string
string strurl = "234234435";
Encoding ed = Encoding.UTF8;
byte[] bt = ed.GetBytes(strurl);
string strurl2 = Convert.ToBase64String(bt);
//tostring
byte[] bt1 = Convert.FromBase64String(strurl2);
strurl2= ed.GetString(bt1);