#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
#include<string.h>
#include<math.h>
#include <stdlib.h>
#include <time.h>
int main()
{
int ret = 0;
int count = 0;
for(ret = 1; ret <= 100; ret++)
{
if(ret % 10 == 9)
{
printf("%d\n",ret);
count++;
}
if(ret / 10 == 9)
{
printf("%d\n",ret);
count++;
}
}
printf("\n9的个数count=%d\n",count);
system("pause");
return 0;
}