Could you tell me what tool is used to generate the typesetting style in the following figure? Is it some kind of grammar of markdown?

Mar.22,2021

I think it is hand-typed, because many vertical boundary lines are not aligned, and markdown does not have corresponding support. in addition, if it is not a plain text environment, this kind of figure is better transformed into a picture, which is both rectangular and arrowhead

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e48337-5921c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e48337-5921c.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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