On the order of multiple selections in element.ui tables

The

table needs to add type= "selection" to use the checkbox. Generally, you can use $refs.multipleTable.selection to get the selected array objects after clicking. The arrangement is in the order in which you click.
but sometimes this order will be messed up, I would like to ask what"s going on, is there any way to keep it from changing the order?
for example, A1 br AA chooses to print $refs.multipleTable.selection, and then selects a2 br BB to become
. This is just an example, which occasionally changes, as if it has something to do with the name

.
Jul.03,2021
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-64f5-1b371ee-2c080.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b371ee-2c080.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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