<iframe
              width="100%"
              height="100%"
              src="https://www.youtube.com/embed/id?enablejsapi=1&autoplay=1&loop=1&playlist=id"
              frameborder="0"
              allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture"
              allowfullscreen
            >
            </iframe>

修改id为自己的id

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