成绩转换 哪里错

Question

 

#include <stdio.h>
int main ()
{
 double N;
 int x;
 
scanf ("%lf",&N);
while(N<10)
{
 scanf("%d",&x);
 

 switch (int(x/10))
 {
 case 10:case 9: printf ("A\n");break;
 
 case 8: printf ("B\n");break;
 case 7: printf ("C\n");break;
 case 6: printf ("D\n");break;
 default: printf ("E\n");break;
 }
}

 return 0;

    
 
}

Answer 1

少了N++;