#include<stdio.h>
#include<math.h>
int main()
{
int i = 0;
int count = 0;
for (i = 1; i <= 100; i++)
{
if(i % 10 ==9)
count++;
if(i / 10 ==9)
count++;
printf("%d ",i);
}
printf("\ncount=%d\n",count);
return 0;
}
编写程序数一下1-100之间数有多少个9出现
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2022-12-06
#include<stdio.h>
#include<math.h>
int main()
{
int i = 0;
int count = 0;
for (i = 1; i <= 100; i++)
{
if(i % 10 ==9)
count++;
if(i / 10 ==9)
count++;
printf("%d ",i);
}
printf("\ncount=%d\n",count);
return 0;
}
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