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fread函数将磁盘文件读取到一个链表中。函数如下,希望能获得正确代码,就是将readfile0这个函数改下。谢

问题:#include<stdio.h> #include<math.h> #include<malloc.h> #include<stdlib.h> #include<string.h> enum sex{female,male}; char number[8]; struct student* Bubble1(struct student* head,int i);\\链表的冒泡排序 struct student { char name[20]; enum sex sex; int score[3]; char number[8]; struct student *next; }; void writefile0(struct student*head) //已知链表头head,将之写入文件中 { struct student*p1; //struct student*head; FILE *f0; char string[40]; printf("请输入文件路径或者文件名字!(扩展名)"); scanf("%s",string); f0=fopen(string,"w"); //新建一个文件 p1=head; while(p1!=NULL) { fwrite(p1,sizeof(struct student),1,f0); p1=p1->next; } printf("所有学生的信息已写入文件%s中\n",string); fclose(f0); } void readfile0(struct student*head) //读取原始文件(所有学生的信息) { FILE *f0; char string[40]; printf("请输入总信息的文件名:"); scanf("%s",string); while((f0=fopen(string,"r"))==NULL) { printf("不能打开,重新输入\n"); scanf("%s",string); } while(!feof(f0)) { fread(head,sizeof(struct student),1,f0); } printf("该文件已打开!"); fclose(f0);}
追问:  谢谢您,那个…不好意思能不能再帮我看看一个代码?
 
  void divideCount(struct student* head,int i)    //显示每个分数段各有多少人,其中i表示哪科成绩
{
 struct student*head1;
 head1=Bubble1(head,i);//冒泡排序法
 outPrint(head1,i);
 
 int c0,c1,c2,c3,c4;
 int c5,c6,c7,c8,c9;
 c0=c5=0;
 struct student* p;
 struct student* q;
 p=head1;
 q=head1;
 下面的字数有要求贴不上来了。。能不能加您的QQ啊?
答案:struct student * readfile0( void )     //读取原始文件(所有学生的信息)
{
    FILE *f0;
    char string[40];
struct student *head=NULL , *tail , *data ;

 
    printf("请输入总信息的文件名:");    scanf("%s",string);
    while((f0=fopen(string,"r"))==NULL)
    {
        printf("不能打开,重新输入\n");
        scanf("%s",string);
    }

 
    while(!feof(f0))
    {
        data=(struct student *)malloc( sizeof(struct student) );
        if ( fread(data,sizeof(struct student),1,f0) <= 0 )
            break ;
        if ( NULL == head )
            head=data;
        else
            tail->next=data;
        tail=data;
    }
    tail->next=NULL ;
    fclose(f0);
    return head ;
}
 
void show_link( struct student * head )
{
    struct student *data=head;
    while(data!=NULL)
    {
        printf( "name=%s\n" , data->name );
        printf( "name=%d\n" , data->sex );
        printf( "name=%d\n" , data->score[0] );
        printf( "name=%d\n" , data->score[1] );
        printf( "name=%d\n" , data->score[2] );
        printf( "name=%s\n" , data->number );
        data=data->next;
    }
}
int main()
{
    struct student *head=NULL ;
    head=readfile0() ;
    show_link(head) ;
return 0;

}

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