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我是硒的初学者。我想知道如何在 youtube 播放的设置按钮中检查视频的质量，例如（144p、240p、720p ..）。
按 f12 并右键单击要选择的元素，选择复制 xpath。以下是设置选项及其子项的 xpath
//*[@id="movie_player"]/div[25]/div[2]/div[2]/button[3] document.querySelector("#ytp-id-21")