Results 4 issues of CB

找朋友一起学习 C++,每天学习一节课,互相监督QQ 号:3585828350

help wanted

In Apple's document, " You access the contents of a fetch result with the same methods and conventions used by the NSArray class. Unlike an NSArray object, however, a PHFetchResult...

Please give the example of using symbol at the context of Extensible Data Notation (EDN)