struct Student
{
    int num;
    char name[20];
    float score[3];
    float aver;
};
int main()
{
    void input(struct Student info[]);
    void average(struct Student info[]);
    struct Student search_max(struct Student aver[]);
    void print(struct Student info);
    struct Student info[N],*p=info;
    input(p);
    average(p);
    print(search_max(p));
    return 0;
}
void input(struct Student info[])
{
    int i;
    printf("请输入各个学生的学号、姓名和3门课程的成绩:\n");
    for(i=0;i<N;i++)
    {
        scanf("%d%s%f",&info[i].num,info[i].name,
            &info[i].score[0],&info[i].score[1],&info[i].score[2]);
    }
}
void average(struct Student info[])
{
    int i;
    for(i=0;i<N;i++)
    {
        printf("%s的三门课程总平均成绩是:\n",info[i].name);
        info[i].aver=(info[i].score[0]+info[i].score[1]+info[i].score[2])/3;    
    }
}
struct Student search_max(struct Student info[])
{
    int i,m=0;
    for(i=0;i<N;i++)
    {
        if(info[i].aver>info[m].aver)
            m=i;
        return info[m];
    }
}
void print(struct Student info)
{
    printf("总成绩最高的学生是:\n");
    printf("学号:%d\n姓名:%s\n三门课成绩:5.1,%f5.1,%f,5.1%f\n",
        info.num,info.name,info.score[3],info.aver);
}

[此贴子已经被作者于2016-12-19 18:49编辑过]

小明 100 100 100
小红 99 99 99
张三 80 80 80
李四 85 85 85
赵五 77 77 77
陈涛 92 92 92
江斌 66 66 66
肖锋 89 89 89
林洪 79 79 79
小新 96 96 96
提供下数据

ggg

struct Student info[N],*p=info;  //这里写成两行语句试试看行不行。