c# selenium Driver启动

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium;
using OpenQA.Selenium.Support.Extensions;
using OpenQA.Selenium.IE;
using OpenQA.Selenium.Firefox;
using Protractor;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Configuration;
using NetBrain.Common.Utility;
using System.Threading;


namespace NetBrain.Framework.Browser
{
    public class Browser
    {
        #region properties
        public static IWebDriver Driver;
        public static NgWebDriver NgDriver;


        #endregion
        ///

        /// Launch Browser according to the given browser type, and max the window.
        ///

        /// IE,FF or CH
        ///
        public static void LaunchBrowser(string Type, string URL)
        {
            string DriverPath = Environment.CurrentDirectory + @"\..\..\..\NetBrain.Framework.Browser\bin\Debug";
            string downloadPath = EnvSettings.downloadPath;
            if (Type.ToLower()=="chrome")
            {
                ChromeOptions o = new ChromeOptions();
                o.AddUserProfilePreference("download.default_directory", downloadPath);
                o.AddUserProfilePreference("intl.accept_languages", "nl");
                o.AddUserProfilePreference("disable-popup-blocking", "true");
                //o.AddArguments("--disable-extensions");
                o.AddArguments("--start-maximized");
                o.AddArguments("--disable-notifications");
                o.AddArguments("disable-infobars");
                //WebDriver driver = new ChromeDriver(o);
                Driver = new ChromeDriver(DriverPath, o);
            }
            if (Type.ToLower() == "ie")
            {
                InternetExplorerOptions Options = new InternetExplorerOptions();
                Options.IntroduceInstabilityByIgnoringProtectedModeSettings = true;
                Driver = new InternetExplorerDriver(Options);
            }
            if (Type.ToLower() == "firefox")
            {
                FirefoxProfile profile = new FirefoxProfile();
                profile.SetPreference("browser.helperApps.alwaysAsk.force", false);
                profile.SetPreference("browser.download.folderList", 2);
                profile.SetPreference("browser.download.dir", downloadPath);
                //profile.SetPreference("services.sync.prefs.sync.browser.download.manager.showWhenStarting", false);
                profile.SetPreference("browser.download.useDownloadDir", true);
                profile.SetPreference("browser.helperApps.neverAsk.saveToDisk", "application/msword, application/csv, application/ris, text/csv, image/png, application/pdf, text/html, text/plain, application/zip, application/x-zip, application/x-zip-compressed, application/download, application/octet-stream");
                ///概率性出现OpenQA.Selenium.WebDriverException: Failed to start up socket within 45000 milliseconds. Attempted to connect to the following addresses: 127.0.0.1:7055. 增加retry步骤
                try
                {
                    //Driver = new FirefoxDriver(profile);
                    string sBrowserExe = @"C:\Program Files (x86)\Mozilla Firefox\firefox.exe";
                    FirefoxBinary Bin = new FirefoxBinary(sBrowserExe);
                    //mDriver = new FirefoxDriver(Bin, Prof);
                    Driver = new FirefoxDriver(Bin, profile);
                }
                catch (WebDriverException e)
                {
                    // if(e.Message.Contains("Failed to start up socket within 45000 milliseconds. Attempted to connect to the following addresses:"))
                    // {
                    //Driver.Quit();
                    //FirefoxProfile Prof = new FirefoxProfile();
                    string sBrowserExe = @"C:\Program Files (x86)\Mozilla Firefox\firefox.exe";
                    FirefoxBinary Bin = new FirefoxBinary(sBrowserExe);
                    //mDriver = new FirefoxDriver(Bin, Prof);
                    Driver = new FirefoxDriver(Bin, profile);
                    //}
                }
            }
            Driver.Manage().Window.Maximize();
            //Login前先清除下cookie,确保账号密码登录
            Driver.Manage().Cookies.DeleteAllCookies();
            Driver.Navigate().GoToUrl(URL);
            //NgDriver = new NgWebDriver(Driver, "nbApp");
            NgDriver = new NgWebDriver(Driver);
            BrowserSetting();
            //return NgDriver;
            //return NgDriver;
        }


        private static void BrowserSetting()
        {
            //Driver.Manage().Cookies.DeleteAllCookies();
            //NgDriver.IgnoreSynchronization = false;
            NgDriver.Manage().Timeouts().AsynchronousJavaScript = new TimeSpan(0, 0, 20);
            NgDriver.Manage().Timeouts().ImplicitWait = new TimeSpan(0, 0, 5);
            NgDriver.Manage().Timeouts().PageLoad = new TimeSpan(0, 0, 20);
           // NgDriver.WaitForAngular();
            //NgDriver.IgnoreSynchronization = true;
            Driver.Manage().Timeouts().AsynchronousJavaScript = new TimeSpan(0, 0, 20);
            Driver.Manage().Timeouts().ImplicitWait = new TimeSpan(0, 0, 5);
            Driver.Manage().Timeouts().PageLoad = new TimeSpan(0, 0, 20);
        }


        public static List GetWindowsHandles()
        {
            return NgDriver.WindowHandles.ToList();
        }


        public static void QuitBrowser()
        {
            NgDriver.Quit();
        }


        public static void DisposeBrowser()
        {
            NgDriver.Dispose();
        }
        public static void KillDriverProcess(string browserType)
        {
            switch (browserType.ToLower())
            {
                case "chrome": if (TestUtility.ExistProcess("chrome")) TestUtility.KillProcess("chrome"); break;
                case "firefox": if (TestUtility.ExistProcess("firefox")) TestUtility.KillProcess("firefox"); break;
                case "ie": if (TestUtility.ExistProcess("IEDriverServer")) TestUtility.KillProcess("IEDriverServer"); break;
            }
        }


        ///

        /// Delete All cookies
        ///

        public static void DeleteAllCookies()
        {
            NgDriver.Manage().Cookies.DeleteAllCookies();
        }


        public static Screenshot TakeScreenShot()
        {
            return NgDriver.WrappedDriver.TakeScreenshot();
        }


        ///

        /// Execute Java Script
        ///

        ///
        public static void ExecuteJaveScript(string strJS)
        {
            IJavaScriptExecutor js = (IJavaScriptExecutor)Driver;
            js.ExecuteScript(strJS);
        }


        ///

        /// Execute Jave Script return string
        ///

        ///
        ///
        public static string ExecuteJaveScriptReturnString(string strJS)
        {
            //IJavaScriptExecutor js = (IJavaScriptExecutor)Driver;
            IJavaScriptExecutor js = Driver as IJavaScriptExecutor;
            return (string)js.ExecuteScript(strJS);
        }


        public static ChromeOptions ChromeSettings()
        {
            ChromeOptions profile = new ChromeOptions();
            string path = ConfigurationManager.AppSettings["DownloadPath"];
            //profile.AddArguments("disable-popup-blocking", "true");
            //profile.AddArguments("download.default_directory",path);
            //profile.AddArguments("download.directory_upgrade", "true");
            //profile.AddArguments("download.prompt_for_download", "false");
            profile.AddUserProfilePreference("download.default_directory", path);
            profile.AddUserProfilePreference("intl.accept_languages", "nl");
            profile.AddUserProfilePreference("disable-popup-blocking", "true");
            return profile;
        }


        //设置Firefox浏览器下载zip文件不弹框，默认下载到指定文件夹中
        public static FirefoxProfile FirfoxSettings()
        {
            FirefoxProfile firefoxProfile = new FirefoxProfile();
            string path = ConfigurationManager.AppSettings["DownloadPath"];
            firefoxProfile.AcceptUntrustedCertificates = true;
            firefoxProfile.SetPreference("browser.download.dir", path);
            firefoxProfile.SetPreference("browser.download.folderList", 2);
            firefoxProfile.SetPreference("browser.helperApps.alwaysAsk.force", false);
            firefoxProfile.SetPreference("browser.download.alertOnEXEOpen", false);
            firefoxProfile.SetPreference("browser.download.manager.alertOnEXEOpen", false);
            firefoxProfile.SetPreference("browser.helperApps.neverAsk.saveToDisk", "application/json,text/xml,text/csv, text/plain, text/log, application/zlib, application/x-compressed, application/x-gtar, multipart/x-gzip, application/tgz, application/gnutar, application/x-tar, application/gzip");
            firefoxProfile.SetPreference("pdfjs.disabled", true);
            return firefoxProfile;
        }


        ///

        /// Navigation 到指定的URL
        ///

        ///
        public static void NavigateToURL(string URL)
        {
            Browser.NgDriver.Navigate().GoToUrl(URL);
        }
    }
}