C语言，输入百分制成绩，输出对应等级

a是int 类型前面应该写float s;int a; scanf("%f",&s);a=int s;//使实数类型 float a; printf("请输入成绩：\n") switch((int)(a/10+0.05))case ncludeint main() char score; printf("Please input your score(0~100):\n");scanf("%c&