用C#+Selenium+ChromeDriver爬取网页(模拟真实的用户浏览行为)

 #region 异常  退出chromedriver

        [DllImport("user32.dll", EntryPoint = "FindWindow")]
        private extern static IntPtr FindWindow(string lpClassName, string lpWindowName);

        [DllImport("user32.dll", EntryPoint = "SendMessage")]
        public static extern int SendMessage(IntPtr hWnd, int Msg, int wParam, int lParam);

        public const int SW_HIDE = 0;
        public const int SW_SHOW = 5;

        [DllImport("user32.dll", EntryPoint = "ShowWindow")]
        public static extern int ShowWindow(IntPtr hwnd, int nCmdShow);

        /// <summary>
        /// 获取窗口句柄
        /// </summary>
        /// <returns></returns>
        public IntPtr GetWindowHandle()
        {
            string name = (Environment.CurrentDirectory + "\\chromedriver.exe");
            IntPtr hwd = FindWindow(null, name);
            return hwd;
        }

        /// <summary>
        /// 关闭chromedriver窗口
        /// </summary>
        public void CloseWindow()
        {
            try
            {
                IntPtr hwd = GetWindowHandle();
                SendMessage(hwd, 0x10, 0, 0);
            }
            catch { }
        }

        /// <summary>
        /// 退出chromedriver
        /// </summary>
        /// <param name="driver"></param>
        public void CloseChromeDriver(IWebDriver driver)
        {
            try
            {
                driver.Quit();
                driver.Dispose();
            }
            catch { }
            CloseWindow();
        }

        #endregion 异常  退出chromedriver