objective c - How do you convert an NSUInteger into an NSString? -

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how convert nsuinteger nsstring? i've tried nsstring returned 0 time.

nsuinteger namescategoriesnsarraycount = [self.namescategoriesnsarray count];   nslog(@"--- %d", namescategoriesnsarraycount);   [namescategoriesnsarraycountstring settext:[nsstring stringwithformat:@"%d",    namescategoriesnsarraycount]];   nslog(@"=== %d", namescategoriesnsarraycountstring);

when compiling support arm64, won't generate warning:

[nsstring stringwithformat:@"%lu", (unsigned long)mynsuinteger];

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