我来回答你的问题。

{!-- PGC_VIDEO:{"thumb_height": 720, "vposter": "https://p3-sign.toutiaoimg.com/mosaic-legacy/24337000057bf83a36f70~noop.image?x-expires=1981333652&x-signature=%2Fme1g8aziV0FoBSDwk2GRAfXgsY%3D", "thumb_width": 1280, "vid": "v02016560000bmkf6qr6936ho2uakohg", "vu": "v02016560000bmkf6qr6936ho2uakohg", "duration": 69.37, "thumb_url": "24337000057bf83a36f70", "thumb_uri": "24337000057bf83a36f70", "video_size": {"high": {"duration": 69.37, "h": 720, "w": 1280}, "ultra": {"duration": 69.37, "h": 720, "w": 1280}, "normal": {"duration": 69.37, "h": 720, "w": 1280}}} --}