Uri uri = new Uri("http://www.yoercn.com/aboutus/idea.html");
string Host = uri.Host; //www.yoercn.com
string AbsolutePath = uri.AbsolutePath; //aboutus/idea.html
string AbsoluteUri = uri.AbsoluteUri; //http://www.yoercn.com/aboutus/idea.html
string Authority = uri.Authority; //www.yoercn.com
string DnsSafeHost = uri.DnsSafeHost; //www.yoercn.com
string LocalPath = uri.LocalPath; //aboutus/idea.html
string OriginalString = uri.OriginalString; //http://www.yoercn.com/aboutus/idea.html
string PathAndQuery = uri.PathAndQuery; //aboutus/idea.html
string Scheme = uri.Scheme; //http