用一个变量打印九九乘法表

 1 #include<stdio.h> 
 2 
 3 int main()
 4 {
 5     int m;
 6     for (m = 0; m < 81; m++)
 7     {
 8         if ((m % 9) > (m / 9))
 9         {
10             continue;
11         }
12         printf("%d * %d = %2d  ", (m % 9) + 1, (m / 9) + 1, ((m % 9) + 1) * ((m / 9) + 1));
13         if ((m % 9) == (m / 9))
14         {
15             printf("\n");
16         }
17     }
18     return 0;
19 }