【C语言】通讯录实现以及信息保存至文件。

来源：互联网发布：网络作家富豪榜2013 编辑：程序博客网时间：2024/05/05 09:14

实现一个通讯录：

通讯录用来存放1000个人的信息，每个人的信息包括：

姓名、性别、年龄、电话、住址

提供方法：

（1）添加联系人信息

（2）删除指定联系人信息

（3）查找指定联系人的信息

（4）修改指定联系人信息

（5）显示所有联系人信息

（6）清空所有联系人

实现方法：

#include <stdio.h>#include <string.h>#define MAX 1000#define NAME_LEN 10#define SEX_LEN 5#define PHONE_LEN 20#define ADDRESS_LEN 30struct DHB{    char name[NAME_LEN];    char sex[SEX_LEN];    int age;    char phone[PHONE_LEN];    char address[ADDRESS_LEN];};typedef struct PEO{    struct DHB dhb[MAX];    int count;}Peo,*Pcon;void print(void){    printf("***********\n");    printf("1->添加联系人\n2->删除指定联系人\n3->查找指定联系人\n");    printf("4->修改指定联系人\n5->显示所有联系人\n6->清空所有联系人\n");    printf("7->文件形式保存\n");    printf("***********\n");    printf("\n请选择序号：");}int find(char *p,Pcon pcon){    int i = 0;    for (i = 0; i < pcon->count; i++)    {        if (strcmp(p, pcon->dhb[i].name) == 0)        {            return i;        }    }    return -1;}void add(Pcon pcon){    printf("请输入姓名、性别、年龄、电话、地址：\n");    scanf("%s %s %d %s %s",         pcon->dhb[pcon->count].name,         pcon->dhb[pcon->count].sex,       &pcon->dhb[pcon->count].age,        pcon->dhb[pcon->count].phone,        pcon->dhb[pcon->count].address);    printf("\n");    pcon->count++;}void dele(Pcon pcon){    int i = 0,tmp = 0;    char name[NAME_LEN];    printf("输入要删除联系人的姓名：");    scanf("%s",name);    tmp = find(name,pcon);    if (tmp == -1)    {        printf("无此联系人!\n");    }    else    {        for (i=tmp; i < pcon->count-1; i++)        {            pcon->dhb[i] = pcon->dhb[i + 1];        }        pcon->count--;        printf("\n删除指定联系人成功!\n");    }}void search(Pcon pcon){    int tmp = 0;    char name[NAME_LEN];    printf("请输入要查找联系人的姓名：");    scanf("%s",name);    tmp = find(name, pcon);    if (tmp == -1)    {        printf("无此联系人!\n");    }    else    {        printf("%s %s %d %s %s\n",            pcon->dhb[tmp].name,            pcon->dhb[tmp].sex,            pcon->dhb[tmp].age,            pcon->dhb[tmp].phone,            pcon->dhb[tmp].address);        printf("\n查找成功!\n");    }}void modify(Pcon pcon){    int tmp = 0;    char name[NAME_LEN];    printf("请输入要修改的联系人的姓名：");    scanf("%s",name);    tmp = find(name,pcon);    if (tmp == -1)    {        printf("无此联系人!\n");    }    else    {        printf("请输入修改后的联系人的全部信息：\n");        scanf("%s %s %d %s %s",             pcon->dhb[tmp].name,            pcon->dhb[tmp].sex,            &pcon->dhb[tmp].age,            pcon->dhb[tmp].phone,            pcon->dhb[tmp].address);        printf("\n修改成功!\n");    }}void show(Pcon pcon){    int i = 0;    printf("name     sex     age     phone     address          \n");    printf("----------------------------------------------------");    for (i = 0; i < pcon->count; i++)    {        printf("\n%-8s %-7s %-7d %-9s %-11s\n",            pcon->dhb[i].name,            pcon->dhb[i].sex,            pcon->dhb[i].age,            pcon->dhb[i].phone,            pcon->dhb[i].address);    }}void clear(Pcon pcon){    pcon->count = 0;}void filesave(Pcon pcon)//将添加的联系人保存至文件里{    int i = 0;    FILE *pf = fopen("D:/Program Files/MyProjects/2015_5_28/main.txt","w");//文件可新建于当前文件下，即可执行文件的上一层目录底下    if(pf == NULL)    {        perror("error");        exit(EXIT_SUCCESS);    }    for(i = 0; i < pcon->count; i++)    {        fwrite(&pcon->dhb[i],sizeof(struct DHB),1,pf);    }    fclose(pf);}int main(){    Peo stu;    int input = 1;    stu.count = 0;    while (input)    {        print();        scanf("%d",&input);        switch (input)        {            case 1:                add(&stu);                break;            case 2:                dele(&stu);                break;            case 3:                search(&stu);                break;            case 4:                modify(&stu);                break;            case 5:                show(&stu);                break;            case 6:                clear(&stu);                break;            case 7:                filesave(&stu);                break;            default:                printf("选项无效\n");                break;        }    }    return 0;}

添加联系人：

查找指定联系人：

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