How does the single-page application of vue automatically call parent methods within each component?

just as the subclass inherits the parent class, the subclass automatically executes the constructor of the parent class. Do not manually rewrite in each component.

Mar.03,2021

then you can write a parent class and let the subclasses inherit

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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-64f5-1b3553b-2bf8d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3553b-2bf8d.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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