selenium webdriver 屏幕滚动
//山寨法
String setscroll = "document.documentElement.scrollTop=100"; JavascriptExecutor jse=(JavascriptExecutor) driver; jse.executeScript(setscroll);
//专业法
WebElement target = driver.findElement(By.xpath(xpath表达式));//如:".//*[@id='count2']/table[1]/tbody/tr[5]/td/div/table"
((JavascriptExecutor) driver).executeScript("arguments[0].scrollIntoView();", target);