[DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]public static extern bool InternetSetCookie(string lpszUrlName, string lbszCookieName, string lpszCookieData)private delegate void invokeDelegate();public void bk(){string url = "http://*******"//任意网址//添加cookiesfor (int i = 0; i < cookies.Count; i++){Cookie c = cookies[i];InternetSetCookie(url, c.Name, c.Value);}webBrowser2.Navigate(url);webBrowser2.ScriptErrorsSuppressed = true;while (true){Application.DoEvents();if (webBrowser2.ReadyState != WebBrowserReadyState.Complete){break;}}invokeDelegate del = new invokeDelegate(StartMethod);IAsyncResult ir = del.BeginInvoke(AddComplete, null);}    /// <summary>/// 委托异步/// </summary>/// <param name="result"></param>private void AddComplete(IAsyncResult result){invokeDelegate handler = (invokeDelegate)((AsyncResult)result).AsyncDelegate;handler.EndInvoke(result);}

 private void StartMethod(){Thread.Sleep(7000);this.Invoke(new Action(() =>{HtmlDocument cd = webBrowser2.Document;string doc = webBrowser2.DocumentText;           int count = 0;HtmlElementCollection dhl1 = cd.GetElementsByTagName("input");//GetElementsByTagName得到的是点击的标记元素名称foreach (HtmlElement item in dhl1){string elemName = item.GetAttribute("name");if (elemName != null || elemName.Length > 0){if (elemName == "btnclick"){item.InvokeMember("click");}                    }}}));}

 public static CookieCollection getCookies(string path){string cook = ReadTxt(path).Trim();CookieCollection cookies = new CookieCollection();string[] cookstr = cook.Split(';');foreach (string str in cookstr){string[] cookieNameValue = str.Split('=');cookieNameValue[1] = cookieNameValue[1].Trim().ToString().Replace(",", "%2C");Cookie ck = new Cookie(cookieNameValue[0].Trim().ToString(), cookieNameValue[1].Trim().ToString());ck.Domain = "*******";//Host地址，可从浏览器上查看cookies.Add(ck);}return cookies;}