public UpVideoInfo GetRandomVideoOfUp(long upId, int total) { int pageNum = new Random().Next(1, total + 1); BiliApiResponse <SearchUpVideosResponse> re = _dailyTaskApi.SearchVideosByUpId(upId, 1, pageNum).GetAwaiter().GetResult(); if (re.Code != 0) { throw new Exception(re.Message); } return(re.Data.List.Vlist.First()); }