How does iview upload the picture to the background, and store the data in formdata and transmit it to the background?

how iview uploads pictures to the background, and stores data in formdata to transmit to the background

Mar.02,2021
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-64f5-1e59e07-4557a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e59e07-4557a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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