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2014/10/15 ¤U¤È 10:11:08

iphone Programming Glossary: listofnumbers

iOS: How do I generate 8 unique random integers?

http://stackoverflow.com/questions/6153550/ios-how-do-i-generate-8-unique-random-integers

9 or 10 then this takes a while and you can be more clever. NSMutableArray getEightRandomLessThan int M NSMutableArray listOfNumbers NSMutableArray alloc init for int i 0 i M i listOfNumbers addObject NSNumber numberWithInt i ADD 1 TO GET NUMBERS BETWEEN.. NSMutableArray getEightRandomLessThan int M NSMutableArray listOfNumbers NSMutableArray alloc init for int i 0 i M i listOfNumbers addObject NSNumber numberWithInt i ADD 1 TO GET NUMBERS BETWEEN 1 AND M RATHER THAN 0 and M 1 NSMutableArray uniqueNumbers.. M 1 NSMutableArray uniqueNumbers NSMutableArray alloc init autorelease int r while uniqueNumbers count 8 r arc4random listOfNumbers count if uniqueNumbers containsObject listOfNumbers objectAtIndex r uniqueNumbers addObject listOfNumbers objectAtIndex..