include
int main(void)
{
float score;
printf("请输入你的考试成绩:\n");
scanf("%f", score);
if(score > 100)
printf("白日做梦\n");
else if(score>=90 && score<=100)
printf("优\n");
else if(score>=80 && score
printf("良\n");
else if(score>=60 && score
printf("及格\n");
else if(score>=0 && score<60)
printf("不及格\n");
else
printf("太差了\n");
return 0;
}