Mobx uses how to initialize store?

how does mobx initialize store, because I want to get the data from the background, but in some components, how do I initialize it in store? do I new, in the root node of the project, app.jsx, and then call mobx"s action?

Mar.01,2021

1. Create a new file that defines the initialization of store, and then introduces
2 components that need to use store in the root directory. Just inject it directly

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-64f5-1b32fae-2aba0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b32fae-2aba0.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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