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Code
using System;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
namespace HttpGet
{
class Class1
{
[STAThread]
static void Main(string[] args)
{
System.Net.WebClient client = new WebClient();
byte[] page = client.DownloadData("http://www.google.com");
string content = System.Text.Encoding.UTF8.GetString(page);
string regex = "href=[\\\"\\\'](http:\\/\\/|\\.\\/|\\/)?\\w+(\\.\\w+)*(\\/\\w+(\\.\\w+)?)*(\\/|\\?\\w*=\\w*(&\\w*=\\w*)*)?[\\\"\\\']";
Regex re = new Regex(regex);
MatchCollection matches = re.Matches(content);
System.Collections.IEnumerator enu = matches.GetEnumerator();
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Observer.cs
using System;
using System.Text;
using System.Collections.Generic;
namespace Observer
{
public interface ISubject
{
void RegisterObserver(IOvserver o);
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