Please tell me how to get the current cover and remove it from Baidu Map.

I want to delete the current overlay when I click on the circle. "all the coverings appear when I click to edit, how can I identify the current overlay and remove it, thank you"

Aug.17,2021
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-64f5-1b3a498-2c21a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3a498-2c21a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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