有时候我们需要对窗口显示的页面上下滑动，以显示当前正在处理的位置，这就需要用到webdriver模拟鼠标上下滑动

package test20161201;import org.openqa.selenium.WebDriver;import org.openqa.selenium.WebElement;import org.openqa.selenium.chrome.ChromeDriver;import org.openqa.selenium.interactions.Actions;import org.openqa.selenium.By;import org.openqa.selenium.Dimension;public class test20161201 {    public static void main(String[] args) throws InterruptedException {        // TODO Auto-generated method stub        System.setProperty("webdriver.chrome.driver", "C:\\Training\\Automation\\Software\\drivers\\chromedriver_win32\\chromedriver.exe");和上面一行是连着的        WebDriver driver= new ChromeDriver();        driver.navigate().to("http://www.baidu.com");        System.out.println("打开浏览器进入百度首页");        driver.manage().window().maximize();        System.out.println("窗口最大化");        Thread.sleep(2000);        driver.manage().window().setSize(new Dimension(800, 200));----------------浏览器窗口大小改变        Thread.sleep(1000);        driver.manage().window().setSize(new Dimension(200, 800));        Thread.sleep(1000);        driver.manage().window().setSize(new Dimension(600, 600));        Thread.sleep(1000);        driver.manage().window().maximize();        System.out.println("最后将窗口最大化");        Thread.sleep(1000);        driver.findElement(By.id("kw")).sendKeys("知乎");        driver.findElement(By.id("su")).click();        Thread.sleep(3000);        WebElement content = driver.findElement(By.xpath("//*[@id='1']/div[1]/div[2]/div[1]"));        System.out.println(content);//这里定义了一个变量content                driver.findElement(By.linkText("知乎- 与世界分享你的知识、经验和见解")).click();        System.out.println("进入知乎首页");        Thread.sleep(5000);        for(String winHandle:driver.getWindowHandles()){               driver.switchTo().window(winHandle);           }        driver.close();        Thread.sleep(2000);        for(String winHandle:driver.getWindowHandles()){               driver.switchTo().window(winHandle);           }        Thread.sleep(2000);        Actions action = new Actions(driver);-------------------------------------------声明一个动作        WebElement xia = driver.findElement(By.xpath("//*[@id='help']/a[3]"));----------找到向下滑动到的元素位置        action.moveToElement(xia).build().perform();------------------------------------执行滑动动作        Thread.sleep(1000);        WebElement shang = driver.findElement(By.xpath("//*[@id='container']/div[2]/div/div[2]/div"));----------找到向上滑动到的元素位置         action.moveToElement(shang).build().perform();----------------------------------执行滑动动作         System.out.println("鼠标下拉结束");