How does TabNavigator dynamically change initialRouteName?

one problem is that two tab, in
TabNavigator are An and B components
and then jump from A component to C component. At this time, there is a button in C component that can return to the previous page, but what should I do if I want to display B component by default?

Mar.18,2021

+ 1

I also want to know

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-64f5-1b35dfa-4ec32.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b35dfa-4ec32.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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