When vue has sub-routes, calling this.$router.back (), always switches between sub-routes. Is there any way to jump to the previous route (non-sub-routes) directly?

when vue has sub-routes, calling this.$router.back (), always switches between sub-routes. Is there any way to directly jump to the previous route (non-sub-routes)

Mar.11,2021
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-64f5-1b353cc-2bf6f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b353cc-2bf6f.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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