[请问] PDF问题

楼主: jeff50363 (^^)   2020-08-06 09:38:52
想请问问PDF上方那个框框要怎么把它关闭呢,谢谢
https://i.imgur.com/85hwCLZ.jpg
楼主: jeff50363 (^^)   2020-08-06 10:40:00
自问自答,发现只要点加号右边的上方箭头即可

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