花了我半個小時，給了寫了一個簡單的例子，以下是在vs2005下除錯成功，test.txt為檔名，在當前目錄下。

#include <stdio.h>

#include <stdlib.h>

#define TRUE 1

#define FALSE 0

typedef struct Node

{

int num;

int score;

struct Node* next;

}Node, *Linklist;

void InitLinklist(Linklist* L) //初始化單鏈表，建立空的帶頭結點的連結串列

{

*L = (Node*)malloc(sizeof(Node));

(*L)->next = NULL;

}

void CreateLinklist(Linklist L) //尾插法建立單鏈表

{

Node *r, *s;

r = L;

int iNum, iScore;

printf("Please input the number and score:\n");

scanf("%d",&iNum);

scanf("%d",&iScore);

while(0 != iScore) //當成績為負時，結束輸入

{

s = (Node*)malloc(sizeof(Node));

s->num = iNum;

s->score = iScore;

r->next = s;

r =s;

printf("Please input the number and score:\n");

scanf("%d",&iNum);

scanf("%d",&iScore);

}

r->next = NULL; //將最後一個節點的指標域置為空

}

int WriteLinklistToFile(const char* strFile, Linklist L)

{

FILE *fpFile;

Node *head = L->next;

if(NULL == (fpFile = fopen(strFile,"w"))) //以寫的方式開啟

{

printf("Open file failed\n");

return FALSE;

}

while(NULL != head)

{

fprintf(fpFile,"%d\t%d\n",head->num,head->score);

head = head->next;

}

if(NULL != fpFile)

fclose(fpFile);

return TRUE;

};

int ReadFromFile(const char* strFile)

{

FILE *fpFile;

if(NULL == (fpFile = fopen(strFile,"r"))) //以讀的方式開啟

{

printf("Open file failed\n");

return FALSE;

}

printf("The contents of File are:\n");

while(!feof(fpFile))

putchar(fgetc(fpFile));//證明fprintf()輸出到檔案中的絕對是字串

if(NULL != fpFile)

fclose(fpFile);

return TRUE;

}

void Destroy(Linklist L)

{

Node *head =L;

while (head)

{

Node* temp = head;

head = head->next;

free(temp);

}

}

int main()

{

char* strName = "test.txt";

Linklist L;

InitLinklist(&L);

CreateLinklist(L);

WriteLinklistToFile(strName, L);

ReadFromFile(strName);

Destroy(L);

return 0;

}