并不是，然而还是少升级

{!-- PGC_VIDEO:{"thumb_height": 1920, "vposter": "http://p0.pstatp.com/origin/tos-cn-p-0000/1d72f31de11945ffb433423d6d84a510", "thumb_width": 1080, "vid": "v02016820000bovfmui6tgqeqpauujag", "vu": "v02016820000bovfmui6tgqeqpauujag", "duration": 43.12, "thumb_url": "tos-cn-p-0000/1d72f31de11945ffb433423d6d84a510", "thumb_uri": "tos-cn-p-0000/1d72f31de11945ffb433423d6d84a510", "video_size": {"high": {"duration": 43.12, "h": 1920, "w": 1080}, "ultra": {"duration": 43.12, "h": 1920, "w": 1080}, "normal": {"duration": 43.12, "h": 1920, "w": 1080}}} --}