With iview, multi-layer pop-up window, how to achieve?

the layui used by new talents before they come into contact with vue,. Now there is a problem, you need to click on the parent page A to pop up the child page B, and then click on the sub-page B to pop up a page C. then the data of the C page operation is saved to the B page, and the data of the B page operation is saved to the A page. How can this be achieved? Ask the great god for advice!

Mar.04,2021
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-64f5-1b3e5df-2c436.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3e5df-2c436.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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