ch17-7.c

C语言程序设计上机指导与练习 冶金工业出版社 刘怀亮

#include <stdio.h>
main()
{
   int score,temp,log;
   char grade;
   flag=1;
   while(flag)
   { 
   printf(" please enter score:");
    	scanf("%d", &score );
    	if((score>100)||(score<0)) 
   	printf("\n error,try again!\n");
   else 
   【 1 】;
   }
   if(score==100)
   temp=9;
   else 
   temp=【 2 】;
   switch(【 3 】)
     {   
    case 1:
    case 2:
    case 3:
    case 4:
    case 5:
    case【 4 】: grade ='E';  break;
    case 6: grade='D'; break;
    case 7: grade='C';  break;
    case 8: grade='B'; 【 5 】
    case 9: grade='A';
   }
   printf( "score=%d,grade=%c\n",score,grade);
}