Vscode Chinese garbled code

vscode is set to save with utf-8 encoding, but after closing and reopening, it becomes Windows 1252 encoding again. When I wrote the code, I didn"t set the encoding format of Windows 1252, and I don"t know why the file became Windows 1252 encoded

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May.12,2021
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-64f5-1b3912b-2c172.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3912b-2c172.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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