链表写入文件出错

[winhkey]

#include<stdio.h>
#include<stdlib.h>
#include<malloc.h>
struct stu
{
char name[10];
char age[3];
char phone[10];
struct stu *next;
};
struct stu *head,*pf,*pb;
FILE *fp;
int n,i;
void main()
{
pb=(struct stu*)malloc(sizeof(struct stu));
printf("the number:");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf("\nname:");
scanf("%s",&pb->name);
printf("\nage:");
scanf("%s",pb->age);
printf("\nphone:");
scanf("%s",pb->phone);
if(i==0)
head=pf=pb;
else
pf->next=pb;
pb->next=NULL;
pf=pb;
}
if((fp=fopen("report","wb"))==NULL)
{
printf("error");
exit(0);
}
fwrite(head,sizeof(struct stu),n,fp);
fclose(fp);
}
把结构体元素都设成字符串了

[csucdl]

fwrite 是将一块连续的内存单元写入到文件中去

[winhkey]

那是不是要用for循环

[winhkey]

我改成while(head!=NULL)
{
printf("%s %s %s",head->name,head->age,head->phone);
head=head->next;
}
还是不行

[winhkey]

打错了~~~~

[csucdl]

struct stu
{
char name[10];
char age[3];
char phone[10];
stu *next;
};

void main()
{
stu *head = NULL, *pf = NULL, *pb = NULL;
FILE *fp = NULL;
int n = 0, i = 0;
printf("the number:");
scanf("%d",&n);
for(i = 0;i < n; i++)
{
if(head == NULL)
{
head = pf = (stu*)malloc(sizeof(stu));
}
else
{
pf->next = (stu*)malloc(sizeof(stu));
pf = pf->next;
}
printf("name:");
scanf("%s",pf->name);
printf("age:");
scanf("%s",pf->age);
printf("phone:");
scanf("%s",pf->phone);
}
pf->next = NULL;


if((fp = fopen("report.txt","wb")) == NULL)
{
printf("error");
exit(-1);
}
pf = head;
while(pf != NULL)
{
fwrite(pf, sizeof(stu), 1, fp);
pf = pf->next;
}
fclose(fp);
pf = head;
while(pf != NULL)
{
pb = pf->next;
delete pf;
pf = pb;
}
}

[csucdl]

请注意程序书写的规范