#include <stdio.h>
#include <string.h>
#include <stdlib.h>

struct StudentInfo
{
    char xh[12];    //学号
    char xm[12];    //姓名
    int  sex;        //性别0-表示女生1-表示男生
    int  dycj;        //德育成绩
    int  zycj;        //智育成绩
    int  tycj;        //体育成绩
    double zhcjpji; //综合测评成绩

    struct StudentInfo *next;
};
struct studentInfo
{
    char xh[12];    //学号
    char xm[12];    //姓名
    int  sex;        //性别0-表示女生1-表示男生
    int  dycj;        //德育成绩
    int  zycj;        //智育成绩
    int  tycj;        //体育成绩
    double zhcjpji; //综合测评成绩
};

struct StudentInfo* Read(int n);

int main ()
{
    struct StudentInfo *Head;

    Head = Read(10);
}

struct StudentInfo* Read(int n)
 {
    FILE *fp;
    int i,num=0;

    if ((fp = fopen("in.dat","rb"))==NULL)
    {
        printf ("cannot open file\n");
    }
    struct StudentInfo *head;
    struct StudentInfo *p,*q;

    p = (struct StudentInfo*)malloc(sizeof(struct StudentInfo));
    q = (struct StudentInfo*)malloc(sizeof(struct StudentInfo));
    head = (struct StudentInfo*)malloc(sizeof(struct StudentInfo));

    head->next = p;

    while (!feof(fp))
    {
        fread(q,sizeof(struct studentInfo),1,fp);
        p->next = q;
        p = q;
        q = (struct StudentInfo*)malloc(sizeof(struct StudentInfo));
        num++;
    }
    num = num-1;//学生总数
    p = NULL;
   
    p = head->next->next;
    for (i=0;i<num;i++)
    {
        if (p->sex==0)
        {
            printf ("%12s%12s 女 %9d%9d%9d%6.2f\n",p->xh,p->xm,p->dycj,p->zycj,p->tycj,p->zhcjpji);
        }
        else
        {
            printf ("%12s%12s 男 %9d%9d%9d%6.2f\n",p->xh,p->xm,p->dycj,p->zycj,p->tycj,p->zhcjpji);
        }
        q = p->next;
        p = q;
    }
    printf ("共有学生%d个",num);

    return head;
 }