C#模拟浏览器实现自动操作

        //是否已经加载网页标准
        private bool isLoadok = false;
        //首次加载网页标准
        private bool firstLoaded = false;
        //后台服务
        private BackgroundWorker bgwork;
        public WebBrowserDemo()
        {
            InitializeComponent();
        }
 
        /// <summary>
        /// 自动窗体后加载网页并获取网络元素，实现赋值，点击操作
        /// winform窗体上添加了一个名为webBrowser1的WebBrowser控件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Form1_Load(object sender, EventArgs e)
        {
            this.BeginInvoke(new Action(() =>
            {
                bgwork = new BackgroundWorker();
                bgwork.DoWork += Bgwork_DoWork;
                bgwork.RunWorkerCompleted += Bgwork_RunWorkerCompleted;
                string url = "https://www.so.com/";
                this.webBrowser1.ScriptErrorsSuppressed = true;
                this.webBrowser1.Navigate(url);
                webBrowser1.DocumentCompleted += WebBrowser1_DocumentCompleted;
                bgwork.RunWorkerAsync();
                判断网页是否加载完成：等待不起作用，一直在加载网页，使用DocumentCompleted事件
                //while (this.webBrowser1.IsBusy || webBrowser1.ReadyState != WebBrowserReadyState.Complete)
                //{
                //    Thread.Sleep(1000);
                //}
                //string search_id = "input";
                //string search_value = "天安门";
                //string btn_id = "search-button";
                //HtmlDocument doc = this.webBrowser1.Document;
                //HtmlElement search = doc.GetElementById(search_id);
                //search.SetAttribute("value", search_value);
                //HtmlElement btn = doc.GetElementById(btn_id);
                //btn.InvokeMember("click");
            }));
        }
 
        /// <summary>
        /// WebBrowser加载网页完成事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void WebBrowser1_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        {
 
            this.BeginInvoke(new Action(() =>
            {
                if (this.webBrowser1.IsBusy == false && webBrowser1.ReadyState == WebBrowserReadyState.Complete&& firstLoaded==false)
                {
                    firstLoaded=true;
                    string search_id = "input";
                    string search_value = "自动化";
                    string btn_id = "search-button";
                    HtmlDocument doc = this.webBrowser1.Document;
                    HtmlElement search = doc.GetElementById(search_id);
                    search.SetAttribute("value", search_value);
                    HtmlElement btn = doc.GetElementById(btn_id);
                    btn.InvokeMember("click");
                }
 
            }));
        }
 
        /// <summary>
        /// 后台服务完成事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Bgwork_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            this.webBrowser1.Document.Window.Error += new HtmlElementErrorEventHandler(Window_Error);
            if(webBrowser1.ReadyState == WebBrowserReadyState.Complete)
            {
                isLoadok = true;
            }
            else
            {
                isLoadok = false;
            }
        }
 
        /// <summary>
        /// 加载网页错误事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Window_Error(object sender, HtmlElementErrorEventArgs e)
        {
            e.Handled = true;
        }
 
        /// <summary>
        /// 后台服务
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Bgwork_DoWork(object sender, DoWorkEventArgs e)
        {
            compWait();
        }
 
        /// <summary>
        /// 后台服务方法
        /// </summary>
        private void compWait()
        {
            while(!isLoadok)
            {
                Thread.Sleep(500);
            }
        }

    private void btnLoad_Click(object sender, EventArgs e)
    {
        // 设置Chrome选项，可选
        var options = new ChromeOptions();
        //options.AddArgument("--headless"); // 无头模式，不打开浏览器窗口
 
        // 初始化WebDriver
        IWebDriver driver = new ChromeDriver(options);
 
        try
        {
 
            // 打开网页
            driver.Navigate().GoToUrl("https://account.chsi.com.cn/passport/login");
            //driver.Navigate().Back();
            //driver.Navigate().Refresh();
 
            // 等待页面加载完成,知道页面空闲，超时10s抛出异常
            //var wait = new WebDriverWait(driver, TimeSpan.FromSeconds(10));
            //wait.Until(SeleniumExtras.WaitHelpers.ExpectedConditions.BrowserIsNotBusy());
 
            //查找用户输入框并输入用户名
            driver.FindElement(By.Name("username")).SendKeys("Tom");
            //查找密码输入框并输入密码
            driver.FindElement(By.Name("password")).SendKeys("123456");
            driver.Manage().Window.Maximize();
            查找提交按钮并点击提交按钮
            //driver.FindElement(By.ClassName("btn_login")).Click();
 
            // 获取页面源码
            string pageSource = driver.PageSource;
            Console.WriteLine(pageSource);
        }
        catch(Exception ex)
        {
            Console.WriteLine(ex.Message);
        }
        finally
        {
             清理，关闭浏览器
            //driver.Quit();
        }
    }