https://appquvtxccs5646.h5.xiaoeknow.com/v2/course/alive/l_606fb3ece4b09890f0e1c481?app_id=appQuvtXccS5646&alive_mode=0&pro_id=&type=2&available=true&share_user_id=u_5e4cd59198039_YdPuLeapJW&share_type=5&scene=%E5%88%86%E4%BA%AB&is_redirect=1这里有直播讲解，2点开始的