问题
Possible Duplicate:
How to convert An NSInteger to an int?
I am new to iOS programming, how do I convert int to NSInteger. I have found references on how to convert NSInteger to NSNumber but I wasn't able to figure it out. Any help would be appreciated. Thanks.
回答1:
An improved answer
On 64-bit systems NSInteger is long. On 32-bit systems NSInteger is int.
https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/Cocoa64BitGuide/64BitChangesCocoa/64BitChangesCocoa.html
All you need just cast your int to NSInteger.
int i = 1;
NSInteger nsi = (NSInteger) i;
You can also cast NSInteger to int (as in an original answer), but you must be careful on 64-bit system, because your NSInteger can exceed int limits.
An original answer
int i;
NSInteger nsi = 1;
i = nsi;
No big science. :)
来源：https://stackoverflow.com/questions/8226447/converting-int-to-nsinteger