ch5_5.c

C语言程序设计 冶金工业出版社 刘怀亮

/*ch5_5*/
/*从键盘上输入一个百分制成绩score，按下列原则输出其等级：*/
/*score≥ 90，等级为A；80≤ score<90，等级为B；70≤ score<80，等级为C；60≤ score<70，等级为D；score<60，等级为E*/
#include<stdio.h>	
main()
{
    int  score, grade;
    printf("Input a score(0~100):");
    scanf("%d", &score);
    grade = score/10;   /*将成绩整除10，转化成switch语句中的case标号*/
    switch (grade)
    {
        case  10:
        case   9: printf("grade=A\n"); break;	
        case   8: printf("grade=B\n"); break;
        case   7: printf("grade=C\n"); break;
        case   6: printf("grade=D\n"); break;
        case   5:
        case   4:
        case   3:
        case   2:
        case   1:
        case   0: printf("grade=E\n"); break;
        default: printf("The  score  is  out  of  range!\n");
    }
}