Vue import variable from path, why is the path preceded by @?

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vue import variable from @?
@
import from

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Mar.15,2021

vue import variable from path, why is the path preceded by @?
aliases are configured in the configuration file; alias

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Why do the variables in the from path of the import variable add curly braces?

structure assignment of ES6

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-64f5-1e5b06e-455ec.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e5b06e-455ec.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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