编辑代码

#include <stdio.h>
int main () {
   int i,j;
   int n=9;
   i=1;
   while(i<=n){
   j=1;
   while(j<=i){
       printf("%d*%d=%d",j,i,j*i);
       if(j*i<10){
           printf("   ");}
           else{
              printf("  ");
           }
       
    j++;
   }printf("\n");
   i++;
   }
	return 0;
}