我们知道Selenium与浏览器交互，并且这些get方法将仅检索与浏览器相关的信息.正如在其他答案中非常清楚地解释的那样，屏幕分辨率和浏览器是不同的.下面的简单示例非常清楚地表明，Web驱动程序仅获取浏览器的尺寸.

As we know Selenium interacts with browsers and these get methods will retrieve info related to browsers only. As explained in other answers very clearly, screen resolution and browser are different. The simple example below shows very clearly that the web driver is getting only the browser's dimensions.

    WebDriver driver=new FirefoxDriver();
    driver.get("http://www.google.com");
    System.out.println(driver.manage().window().getSize()); //output: (994, 718)

    driver.manage().window().maximize();
    System.out.println(driver.manage().window().getSize()); //output: (1382, 744)