编辑代码

#include <stdio.h>
#include <stdlib.h>
int main()
{
    int score;
    char* level;
    printf("请输入成绩分数:");
    scanf("%d", &score);
    if (score >= 90) {
level = "优";
    }
        if (score >= 60 && score < 90) {
level = "良";
}

    if (score < 60) {
level = "差";
}
printf("你的成绩等级为: %s", level);
    return 0;
}