NSMutableArray *array = [NSMutableArray arrayWithObjects:@"1",@"2",@"3",nil];
NSArray* reversedArray = [[array reverseObjectEnumerator] allObjects];
输出:3.2.1
NSMutableArray *array = [NSMutableArray arrayWithObjects:@"1",@"2",@"3",nil];
NSArray* reversedArray = [[array reverseObjectEnumerator] allObjects];
输出:3.2.1