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();
        }
    }