可以分三个时间段来安排
{!-- PGC_VIDEO:{"thumb_height": 288, "vposter": "https://p3-sign.toutiaoimg.com/tos-cn-i-0022/5521988a307447b99f459a04727b6ea8~noop.image?x-expires=1976254136&x-signature=XIh45UsrG7ml5INDNZ%2FxmEaRH1o%3D", "thumb_width": 512, "vid": "v020160a0000bpbn2djrm1n0n28lg43g", "vu": "v020160a0000bpbn2djrm1n0n28lg43g", "duration": 72.87, "thumb_url": "tos-cn-i-0022/5521988a307447b99f459a04727b6ea8", "thumb_uri": "tos-cn-i-0022/5521988a307447b99f459a04727b6ea8", "video_size": {"high": {"duration": 72.87, "h": 288, "w": 512}, "ultra": {"duration": 72.87, "h": 288, "w": 512}, "normal": {"duration": 72.87, "h": 288, "w": 512}}} --}