How can I disable the check box selected by the element ui tree control?

the method of official documents has no effect. Have you ever done it? give me a train of thought. Thank you!

Nov.15,2021

initially mount the disabled attribute to each node. In the selected event, set disabled to true


to a disabled attribute, and true the selected setting

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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-64f5-1b3eb15-2c426.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3eb15-2c426.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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