第一道:
- #include <stdio.h>
- int main(void)
- {
- int i , j ;
- i = 0 ;
- while(i < 9) {
- j = 0 ;
- while(j < i + 1) {
- if(j) printf(",") ;
- printf("%2d" , i + 1) ;
- j ++ ;
- }
- printf("\n") ;
- i ++ ;
- }
- return 0 ;
- }
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编译运行实况:
- C:\Bin>g++ -o k1 k1.c
- C:\Bin>k1
- 1
- 2, 2
- 3, 3, 3
- 4, 4, 4, 4
- 5, 5, 5, 5, 5
- 6, 6, 6, 6, 6, 6
- 7, 7, 7, 7, 7, 7, 7
- 8, 8, 8, 8, 8, 8, 8, 8
- 9, 9, 9, 9, 9, 9, 9, 9, 9
- C:\Bin>
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第二道:
- #include <stdio.h>
- int main(void)
- {
- int i , j ;
- i = 0 ;
- while(i < 20) {
- j = 0 ;
- while(j < i + 1) {
- if(j) printf(",") ;
- printf("%2d" , j + 1) ;
- j ++ ;
- }
- printf("\n") ;
- i ++ ;
- }
- return 0 ;
- }
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编译运行实况:
- C:\Bin>g++ -o k2 k2.c
- C:\Bin>k2
- 1
- 1, 2
- 1, 2, 3
- 1, 2, 3, 4
- 1, 2, 3, 4, 5
- 1, 2, 3, 4, 5, 6
- 1, 2, 3, 4, 5, 6, 7
- 1, 2, 3, 4, 5, 6, 7, 8
- 1, 2, 3, 4, 5, 6, 7, 8, 9
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,18
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,18,19
- 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,18,19,20
- C:\Bin>
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