ios 冒泡排序

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- (void)viewDidLoad {    [super viewDidLoad];    NSMutableArray *numbers = [NSMutableArray arrayWithObjects:@"17",@"28",@"36",@"15",@"39", nil];    NSLog(@"排序前%@",numbers);    for (int i = 0; i < 5 - 1; i++) {        //比較的躺數        for (int j = 0; j < 5 - 1 - i; j++) {            //比較的次數            if ([numbers[j] intValue] > [numbers[j + 1] intValue]) {                //這裡為升序排序                                int temp = [numbers[j] intValue];                numbers[j] = numbers[j + 1];                //OC中的數組只能儲存物件，所以這裡轉換成string對象                numbers[j + 1] = [NSString stringWithFormat:@"%d",temp];            }        }    }    NSLog(@"排序後%@",numbers);}

 

ios 冒泡排序