如何将链表写入文件当中？

#include<stdio.h>

#include<string.h>

#include<malloc.h>

#include<stdlib.h>

typedef struct shebei

{     int xuhao

    char bianhao[40]

    char didian[40]

    char mingcheng[40]

    char zhuangtai[40]

    struct shebei*next

}SHEBEI

int n

void print(struct shebei*head)

struct shebei*creat()

void RW_File(SHEBEI *head)

void main()

{   struct shebei*head

    head=creat()

    RW_File(head)

    printf("\nji xu jia you o !!!\n")

}

struct shebei*creat()

{    struct shebei*p1,*p2

    struct shebei*head

    n=0

    p1=p2=(struct shebei*)malloc(sizeof(struct shebei))

    head=NULL

    printf("shu ru xu hao:\n")

    scanf("%d",&p1->xuhao)

    printf("shu xu bian hao:\n")

    scanf("%s",p1->bianhao)

    printf("shu ru di dian:\n")

    scanf("%s",p1->didian)

    printf("shu ru ming cheng:\n")

    scanf("%s",p1->mingcheng)

    printf("shu ru zhuang tai:\n")

    scanf("%s",p1->zhuangtai)

    while(p1->xuhao!=0)

    {    n=n+1

        if(n==1)

            head=p1

        else

            p2->next=p1

        p2=p1

        p1=(struct shebei*)malloc(sizeof(struct shebei))

        printf("shu ru xu hao:\n")

        scanf("%d",&p1->xuhao)

        printf("shu xu bian hao:\n")

        scanf("%s",p1->bianhao)

        printf("shu ru di dian:\n")

        scanf("%s",p1->didian)

        printf("shu ru ming cheng:\n")

        scanf("%s",p1->mingcheng)

        printf("shu ru zhuang tai:\n")

        scanf("%s",p1->zhuangtai)

    }

    p2->next=NULL

     return(head)

}

void RW_File(SHEBEI *head)/*head是你刚刚创建的链表的头指针*/

{

    SHEBEI SingleInfo[20]

    FILE *fp

    int i=0

    if((fp=fopen("d:\\shebei","wb+"))==NULL)

    {

        printf("can not open file")

        exit(1)

    }

    while(head)

    {

        fwrite(head,sizeof(SHEBEI),1,fp)

        head = head->next

    }

    rewind(fp)/*到这里已经把链表写入到d盘的shebei文件中*/

    while(!feof(fp))

    {

        fread(&SingleInfo[i],sizeof(SHEBEI),1,fp)

        i++

    }

    fclose(fp)   

}

只需要将文件标示为二进制即可。\x0d\x0astruct student stu[256]\x0d\x0a//将stu赋值...\x0d\x0a\x0d\x0aFILE * fd=fopen("c:\\test.bin","wb")//打开\x0d\x0aint i\x0d\x0afor(i=0i 回答于 2022-11-16

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

typedef struct datanode {

char name[24]

char phone[12]

// ......

struct datanode *next

}*pNode,*LinkList,Node

LinkList getEmptyList() {

LinkList head = (pNode)malloc(sizeof(Node))

head->next = NULL

return head

}

void addNode(LinkList head, pNode pnode) {

pnode->next = head->next

head->next = pnode

}

void writeFile(LinkList head) {

FILE *outf

pNode p = head->next

if((outf = fopen("data.txt","wt")) == NULL) {

printf("不能打开数据文件。\n")

exit(1)

}

while(p) {

fwrite(p,sizeof(Node),1,outf)

p = p->next

}

fclose(outf)

}

int main() {

char name[24],phone[12]

// ......

pNode p

LinkList head = getEmptyList()

printf("姓名 联系电话\n")

while(scanf("%s%s",name,phone) == 2) {

p = (pNode)malloc(sizeof(Node))

strcpy(p->name,name)

strcpy(p->phone,phone)

addNode(head,p)

printf("姓名 联系电话(<Ctrl + Z> <ENTER> 结束)\n")

}

writeFile(head)

return 0

}

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