Ios8 solve the problem of under coreData no NSPersistentContainer

Creating ios app with Xcode8.1 default when using coreData, then, to more than 10.0 version of the job. Because NSPersistentContainer only have more than 10.0, 10.0 version of the following is not, how should we do then?
There are ways, specifically for the 8.0 version plus written INSPersistentContainer came, praising.

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Origin www.cnblogs.com/Free-Thinker/p/11113750.html