WeChat Mini Programs animation, how to achieve the entry effect of the elements loaded by the drop-down

the effect now is that as soon as the page is loaded, all the elements in the list have an entry effect, and then the new elements loaded have no effect!

Mar.12,2021

because there is no more onload after the page is loaded once, it is written in the callback function of the drop-down load to manipulate your loading animation.

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-64f5-1b35e8c-2b81a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b35e8c-2b81a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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