1 #include<stdio.h>
2 int main()
3 {
4 int score;
5 char grade;
6 printf("请输入百分制成绩：");
7 scanf("%d",&score);
8 if(score>=0&&score<60)
9 {
10 grade='E';
11 printf("五分制成绩为%c\n",grade);
12 }
13 else if(score>=60&&score<70)
14 {
15 grade='D';
16 printf("五分制成绩为%c\n",grade);
17 }
18 else if(score>=70&&score<80)
19 {
20 grade='C';
21 printf("五分制成绩为%c\n",grade);
22 }
23 else if(score>=80&&score<90)
24 {
25 grade='B';
26 printf("五分制成绩为%c\n",grade);
27 }
28 else if(score>=90&&score<=100)
29 {
30 grade='A';
31 printf("五分制成绩为%c\n",grade);
32 }
33 else
34 printf("输入成绩有误，请重新输入！");
35 return 0;
36 }
