c语言的九九乘法表1

#include <stdio.h>
int main()
{
 int a,b;
 a=1;
 b=9;
 while(1)
 {
  while(1)
  {
   printf("%d*%d=%d\t" ,a,b,a*b);
   b--;
   if(a>b)
   {
    printf("\n");
    break;
   }
 }
 b=9;
 a++;
 if(a>9)
 break;
 }
 return 0;

}