这是怎么回事？问了几个人都没个解决........

[ 本帖最后由 dq142 于 2015-6-28 23:24 编辑 ]

使用的是文件输出，应该是用write的啊

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
typedef struct node
{
    char name[20];
    char telephone[15];
    char address[50];
    char note[20];
    struct node *next;
}book;

char choose;

int initiate(book **h);
void finput(book *h);
void foutput(book *h);

int main() /*操作界面*/
{
    book *h;
    initiate(&h);
    while(1)
    {
        printf("\n");
        printf("***************************************\n");
        printf("*        欢迎使用通讯录管理系统       *\n");
        printf("*           您有以下选择：            *\n");
        printf("*           1--初始化                 *\n");
        printf("*           2--输入                   *\n");
        printf("*           5--输出                   *\n");
        printf("*           6--退出系统               *\n");
        printf("***************************************\n");
        printf("请输入您的选择：");
        scanf("%c",&choose);
        printf("\n");
        switch (choose)
        {
        case '1':initiate(&h);break;
        case '2':finput(h);break;
        case '5':foutput(h);break;
        case '6':return 0;
        default:printf("输入错误，请重新选择！\n");
        }
    }
}

int initiate(book **h) /*初始化*/
{
    *h=(book*)malloc(sizeof(book));
    if (*h==NULL)
    {
        printf("初始化失败！\n");
        return 0;
    }
    (*h)->next=NULL;
    printf("完成初始化！\n");
    return 1;
}

void finput(book *h) /*文件读取数据*/
{
    book *p,*q;
    FILE *fp;
    char infile[40];
    printf("输入文件名:");
    gets(infile);
    if((fp=fopen(infile,"r"))==NULL)
    {
        printf("无法打开文件%s\n",infile);
        exit(1);
    }
    q=h;
    while(!feof(fp))
    {
        p=q;
        fgets(p->name,21,fp);
        fgets(p->telephone,16,fp);
        fgets(p->address,51,fp);
        fgets(p->note,21,fp);
        if ((q=(book*)malloc(sizeof(book)))==NULL)
        {
            printf("新结点空间申请失败！\n");
            exit(0);
        }
        p->next=q;
    }
    p->next=NULL;
    fclose(fp);
}

void foutput(book *h) /*通讯录文件整体输出*/
{
    FILE *fp;
    char outfile[40];
    book *p;
    int i=0;
    p=h;
    printf("输出文件名:");
    gets(outfile);
    if((fp=fopen(outfile,"w"))==NULL)
    {
        printf("无法打开文件%s\n",outfile);
        exit(1);
    }
    while (p!=NULL)
    {
        i++;
        fprintf(fp,"\n");
        fprintf(fp,"当前通讯录：\n");
        fprintf(fp,"\n");
        fprintf(fp,"联系人%d：\n",i);
        fprintf(fp,"姓名：%s\n",p->name);
        fprintf(fp,"电话号码：%s\n",p->telephone);
        fprintf(fp,"地址：%s\n",p->address);
        fprintf(fp,"备注：%s\n",p->note);
        fprintf(fp,"\n");
        p=p->next;
    }
    fclose(fp);
}