Why do you want to copy the database assets under the sd card?

            
You can also directly manipulate the database assets under ah, why should copy out?
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Not necessary ah
Reply:
assets under document is used as a resource, if it can be changed without a mess.
Reply:

reference to the second floor tcmakebest reply:

file under

assets to use as a resource, if it can be changed without a mess.

It is the data source, nor is it particularly absolute chaos to not mess.