n=0;
   while (     n<5    ){
      printf("%i\n", n);
      n++;
   }
   
   for (n=0; n<5; n++){
      printf("%i\n", n);
   }

陣列

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nDays 洗牌♠♣ ♥♦

asterisks

練習：只利用一句 for/while 句子， 顯示以下資料

1. 1, 2, 3,..., 9, 10
2. 1, 3, 5,..., 19
3. 2, 4, 6,..., 20
4. 31, 32, 33,..., 39
5. 20, 18, 16,..., 6, 4, 2
6. 5, 10, 15,..., 45, 50
7. 5, 15, 25..., 95
8. 1, 4, 9, 16,..., 81, 100
9. 1, -2, 3, -4,..., 9, -10
10. 1+2, 2+3, 3+4,..., 9+10
11. -4, -3, -2, -1, 0, 1, 2, 3, 4
12. 4, 3, 2, 1, 0, 1, 2, 3, 4
13. 1, 2, 3, 4, 5, 4, 3, 2, 1
14. 1, 2, 4, 8, 16, 32, 64, 128, 256
15. 0, 1, 3, 6, 10, 15, 21, 28, 36, 45
16. 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89
17. 5, 10, 15, 20, 15, 10, 5
18. 1, 9, 2, 8, 3, 7, 4, 6, 5, 5
19. 1, 1, 2, 2, 3, 3, 4, 4, 5, 5
20. 1, *, 3, *, 5, *, 7, *, 9, *

只利用兩句 for/while 句子(嵌套式nested)， 顯示以下資料

21. 1, 2, 2, 3, 4, 4, 5, 6, 6, 7, 8, 8, 9, 10, 10
22. 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5