objective-c - iOS开发，获取的二进制数据，在iOS9和iOS8上转化成字典，结果不一致

Question

从服务器获取到数据，然后解析，但是，将二进制数据转化成字典，在iOS8和iOS9上不一致。
在iOS9上正常，在iOS8上很奇怪。

这是iOS9上的，字典正常：

这是iOS8上的，字典奇葩：

问题：如何让它在iOS8和iOS9上一样？

Answer 1

Try changing options to NSJSONReadingMutableContainers

Answer 2

You can print two dictionaries separately. If their output data formats are consistent, we can ignore the different internal processing.

I don’t have a test machine of iOS8 at hand, so I can only guess the reason now.
The data (length) returned twice are inconsistent. The system library uses different internal processing methods because of the inconsistent data (length).