编辑代码

#include <stdio.h>
int main () {
   int a,b,i;
   printf("\n");
   for(a=1;a<10;a++){
       for(b=1;b<=a;b++){
           i = a*b;
           printf("%d*%d=%-3d",a,b,i);
          
       }
       printf("\n");
   }
}