我正在嘗試從一個非常知名的網站單擊一些 JQUERY 元素來練習 Selenium（http://the-internet.herokuapp.com/jqueryui/menu）。我想出了如何導航到菜單（不確定我的代碼是否是一個好的解決方案），但是我無法單擊每個最后一個子菜單選項（PDF、CSV、Excel）我正在嘗試如下所示：Actions builder = new Actions(driver);Action mouseOverMenu;mouseOverMenu = builder.moveToElement(driver.findElement(By.id("ui-id-2"))).build();mouseOverMenu.perform(); //accessing Enabled menu optionmouseOverMenu = builder.moveToElement(driver.findElement(By.id("ui-id-4"))).build();mouseOverMenu.perform(); //accessing Downloads submenu optionString jQuerySelector = "$('a#ui-id-6.ui-corner-all')";WebElement webElement = (WebElement) ((JavascriptExecutor) driver).executeScript("return $(" + jQuerySelector+ ").get(0);");//click() also did not workWebElement webElement = (WebElement) ((JavascriptExecutor) driver).executeScript("return $(" + jQuerySelector+ ").click();");