def scroll(self: T, origin_el: WebElement, destination_el: WebElement, duration: Optional[int] = None) -> T:
        """Scrolls from one element to another

        Args:
            origin_el: the element from which to being scrolling
            destination_el: the element to scroll to
            duration: a duration after pressing originalEl and move the element to destinationEl.
                Default is 600 ms for W3C spec. Zero for MJSONWP.

        Usage:
            driver.scroll(el1, el2)

        Returns:
            Union['WebDriver', 'ActionHelpers']: Self instance
        """

        # XCUITest x W3C spec has no duration by default in server side
        if self.w3c and duration is None:
            duration = 600

        action = TouchAction(self)
        if duration is None:
            action.press(origin_el).move_to(destination_el).release().perform()
        else:
            action.press(origin_el).wait(duration).move_to(destination_el).release().perform()
        return self

# 定位到課堂直播元素
el1 = driver.find_element(AppiumBy.XPATH, "http://*[@text='課堂直播']").click()

# 定位到直播公開(kāi)課元素
el2 = driver.find_element(AppiumBy.XPATH, "http://*[@text='直播公開(kāi)課']").click()

# 執(zhí)?滑動(dòng)操作
driver.scroll(el1,el2)

def drag_and_drop(self: T, origin_el: WebElement, destination_el: WebElement) -> T:
        """Drag the origin element to the destination element

        Args:
            origin_el: the element to drag
            destination_el: the element to drag to

        Returns:
            Union['WebDriver', 'ActionHelpers']: Self instance
        """
        action = TouchAction(self)
        action.long_press(origin_el).move_to(destination_el).release().perform()
        return self

# 定位到課堂直播元素
el1 = driver.find_element(AppiumBy.XPATH, "http://*[@text='課堂直播']").click()

# 定位到直播公開(kāi)課元素
el2 = driver.find_element(AppiumBy.XPATH, "http://*[@text='直播公開(kāi)課']").click()

# 執(zhí)?滑動(dòng)操作
driver.drag_and_drop(el1,el2)