--> 移动鼠标到指定位置(先触发onMouseOver动作)
Actions action = new Actions(driver);
WebElement theRow = page.getInvisibleElement();
action.moveToElement(theRow).perform();
page.getInvisibleElement().click();
--> Ctrl + LeftClick(组合动作)
Actions action = new Actions(driver);
action.keyDown(Keys.CONTROL).perform();
input.click();// WebElement
action.keyUp(Keys.CONTROL).perform();