How to customize the iview transfer shuttle box to manipulate the copy can achieve the effect of a tree menu internally, and you can move the child menu left and right.

the final requirement is similar to this

this is changed with element ui using the checkbox button tree menu without using the shuttle box link description

Dec.02,2021
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-64f5-1e76358-5be.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e76358-5be.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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