Java & JavaScript & Objective-C 的i++與 ++i迴圈都是一樣的

用三種語言跑下列的迴圈都出現一樣的結果

+(void) plusPlusI {

    for (int i = 0; i<10; i++) {

        NSLog(@"i++ : %i",i);

    }

    for (int i = 0; i<10; ++i) {

        NSLog(@"++i : %i",i);

    }

    for (int i = 10; i>=0; i--) {

        NSLog(@"i-- : %i",i);

    }

    for (int i = 10; i>=0; --i) {

        NSLog(@"--i : %i",i);

    }

}

2014-04-15 18:28:16.572 ConceptComfirm[38257:60b] i++ : 0

2014-04-15 18:28:16.573 ConceptComfirm[38257:60b] i++ : 1

2014-04-15 18:28:16.573 ConceptComfirm[38257:60b] i++ : 2

2014-04-15 18:28:16.573 ConceptComfirm[38257:60b] i++ : 3

2014-04-15 18:28:16.573 ConceptComfirm[38257:60b] i++ : 4

2014-04-15 18:28:16.574 ConceptComfirm[38257:60b] i++ : 5

2014-04-15 18:28:16.574 ConceptComfirm[38257:60b] i++ : 6

2014-04-15 18:28:16.574 ConceptComfirm[38257:60b] i++ : 7

2014-04-15 18:28:16.574 ConceptComfirm[38257:60b] i++ : 8

2014-04-15 18:28:16.574 ConceptComfirm[38257:60b] i++ : 9

2014-04-15 18:28:16.575 ConceptComfirm[38257:60b] ++i : 0

2014-04-15 18:28:16.575 ConceptComfirm[38257:60b] ++i : 1

2014-04-15 18:28:16.575 ConceptComfirm[38257:60b] ++i : 2

2014-04-15 18:28:16.575 ConceptComfirm[38257:60b] ++i : 3

2014-04-15 18:28:16.575 ConceptComfirm[38257:60b] ++i : 4

2014-04-15 18:28:16.576 ConceptComfirm[38257:60b] ++i : 5

2014-04-15 18:28:16.576 ConceptComfirm[38257:60b] ++i : 6

2014-04-15 18:28:16.576 ConceptComfirm[38257:60b] ++i : 7

2014-04-15 18:28:16.576 ConceptComfirm[38257:60b] ++i : 8

2014-04-15 18:28:16.579 ConceptComfirm[38257:60b] ++i : 9

2014-04-15 18:28:16.580 ConceptComfirm[38257:60b] i-- : 10

2014-04-15 18:28:16.580 ConceptComfirm[38257:60b] i-- : 9

2014-04-15 18:28:16.580 ConceptComfirm[38257:60b] i-- : 8

2014-04-15 18:28:16.580 ConceptComfirm[38257:60b] i-- : 7

2014-04-15 18:28:16.581 ConceptComfirm[38257:60b] i-- : 6

2014-04-15 18:28:16.581 ConceptComfirm[38257:60b] i-- : 5

2014-04-15 18:28:16.581 ConceptComfirm[38257:60b] i-- : 4

2014-04-15 18:28:16.581 ConceptComfirm[38257:60b] i-- : 3

2014-04-15 18:28:16.581 ConceptComfirm[38257:60b] i-- : 2

2014-04-15 18:28:16.582 ConceptComfirm[38257:60b] i-- : 1

2014-04-15 18:28:16.582 ConceptComfirm[38257:60b] i-- : 0

2014-04-15 18:28:16.582 ConceptComfirm[38257:60b] --i : 10

2014-04-15 18:28:16.582 ConceptComfirm[38257:60b] --i : 9

2014-04-15 18:28:16.582 ConceptComfirm[38257:60b] --i : 8

2014-04-15 18:28:16.582 ConceptComfirm[38257:60b] --i : 7

2014-04-15 18:28:16.582 ConceptComfirm[38257:60b] --i : 6

2014-04-15 18:28:16.583 ConceptComfirm[38257:60b] --i : 5

2014-04-15 18:28:16.583 ConceptComfirm[38257:60b] --i : 4

2014-04-15 18:28:16.583 ConceptComfirm[38257:60b] --i : 3

2014-04-15 18:28:16.583 ConceptComfirm[38257:60b] --i : 2

2014-04-15 18:28:16.584 ConceptComfirm[38257:60b] --i : 1

2014-04-15 18:28:16.584 ConceptComfirm[38257:60b] --i : 0