我有一个SELECT
derived,
c / derived as new1,
sum(derived + d) as new2
FROM mytable
JOIN ...
CROSS APPLY ( SELECT CASE
WHEN a + b IS NULL a
ELSE b
END AS derived
) AS d(derived)
WHERE ...;
，其中包含UIView来显示视频。 AVQueuePlayer没有在这个有效的播放器中工作
UIViewAnimationOptionTransitionCrossDissolve如果有人可以提供帮助，我真的很感激任何建议。
谢谢你们。