//最基本的划分
[scheme:]scheme-specific-part[#fragment]  
//对scheme-specific-part进一步划分
[scheme:][//authority][path][?query][#fragment]  
//对authority再次划分, 这是最细分的结构
[scheme:][//host:port][path][?query][#fragment]  

Uri uriAddress = new Uri("http://www.aiaide.com:8080/Home/index.htm?a=1&b=2#search");
Console.WriteLine(uriAddress.Scheme);
Console.WriteLine(uriAddress.Authority);
Console.WriteLine(uriAddress.Host);
Console.WriteLine(uriAddress.Port);
Console.WriteLine(uriAddress.AbsolutePath);
Console.WriteLine(uriAddress.Query);
Console.WriteLine(uriAddress.Fragment);
//通过UriPartial枚举获取指定的部分
Console.WriteLine(uriAddress.GetLeftPart(UriPartial.Path));
//获取整个URI
Console.WriteLine(uriAddress.AbsoluteUri);