c语言 链表 写通讯录

 
/*   实现一个通讯录；
通讯录可以用来存储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  */
#include<stdio.h>
#include"phone_book.h"
#include<string.h>
#include<assert.h>
 
typedef struct phone_book
{
    char name[10];
    char sex[5];
    char addr[20];
    int year;
    int phone_num;
    struct phone_book *pnext;
}book,*pbook;
 
pbook add_linkman(pbook head)
{
    int i = 0;
    char name[10];
    char sex[5];
    char addr[20];
    int year;
    long phone_num;
    pbook pbase = head;
     
    assert(head);
     
flag:
    printf("你要添加多少个联系人：");
    scanf("%d",&i);
    if (i <= 0)
    {
        printf("输入数量错误！\n");
        goto flag;
    }
    if (head->pnext == null)
    {
        while (i--)
        {
            pbook pnew = (pbook)malloc(sizeof(book));
            assert(pnew);
            printf("请输入联系人信息：（姓名、性别、地址、年龄、电话号码）\n");
            scanf("%s", name);
            scanf("%s", sex);
            scanf("%s", addr);
            strcpy(pnew->name, name);
            strcpy(pnew->sex, sex);
            strcpy(pnew->addr, addr);
            scanf("%d", &pnew->year);
            scanf("%d", &pnew->phone_num);
            pbase->pnext = pnew;
            pnew->pnext = null;
            pbase = pnew;
        }
    }
    else
    {
        while (pbase->pnext != null)
        {
            pbase = pbase->pnext;
        }
        while (i--)
        {
            pbook pnew = (pbook)malloc(sizeof(book));
            assert(pnew);
            printf("请输入联系人信息：（姓名、性别、地址、年龄、电话号码）\n");
            scanf("%s", name);
            scanf("%s", sex);
            scanf("%s", addr);
            strcpy(pnew->name, name);
            strcpy(pnew->sex, sex);
            strcpy(pnew->addr, addr);
            scanf("%d", &pnew->year);
            scanf("%d", &pnew->phone_num);
            pbase->pnext = pnew;
            pnew->pnext = null;
        }
 
    }
    return head;
}
 
pbook remove_linkman(pbook head)
{
    pbook link_man = head;
    char name[10];
    if (!head)
    {
        printf("没有联系人，不能删除！\n");
        return null;
    }
    printf("请问你要删除哪位联系人？  ");
    scanf("%s",name);
    while (link_man->pnext!=null)
    {
        if (strcmp(link_man->pnext->name, name) == 0)
        {
             
            if (link_man->pnext->pnext == null)
            {
                free(link_man->pnext);
                link_man->pnext = null;
                printf("删除完成！\n");
                 
            }
            else
            {
                pbook ptmp = null;
                ptmp = link_man->pnext;
                link_man->pnext = link_man->pnext->pnext;
                free(ptmp);
                printf("删除完成！\n");
                 
            }
            return head;
        }
        else
        {
            link_man = link_man->pnext;
        }
    }
    printf("没有找到该联系人！\n");
    return head;
}
 
void traver_linkman(pbook head)
{
    pbook link_man = head;
    if (head->pnext == null)
    {
        printf("电话簿为空！\n");
    }
    while (link_man->pnext!=null)
    {
        printf("%s\n", link_man->pnext->name);
        printf("%s\n", link_man->pnext->sex);
        printf("%s\n", link_man->pnext->addr);
        printf("%d\n", link_man->pnext->year);
        printf("%ld\n", link_man->pnext->phone_num);
        printf("***********************************\n");
        link_man = link_man->pnext;
    }
}
 
void empty_linkman(pbook head)
{
    pbook ptmp = null;
    pbook link_man = head;
    if (head->pnext == null)
    {
        printf("电话簿为空！不用清空哦！(ˇ0ˇ) \n");
    }
    while (link_man->pnext != null)
    {
        if (link_man->pnext->pnext == null)
        {
            free(link_man->pnext);
            link_man->pnext = null;
        }
        else
        {
            ptmp = link_man->pnext;
            link_man->pnext = link_man->pnext->pnext;
            free(ptmp);
             
        }
    }
    printf("清空完成！\n");
}
 
pbook amend_linkman(pbook head)
{ 
    char name[10];
    char sex[5];
    char addr[20];
    pbook link_man = head;
 
    if (!head)
    {
        printf("没有联系人，不能修改！\n");
        return null;
    }
    printf("请问你要修改哪位联系人？  ");
    scanf("%s", name);
    while (link_man->pnext != null)
    {
        if (strcmp(link_man->pnext->name, name) == 0)
        {
            printf("请输入联系人信息：（姓名、性别、地址、年龄、电话号码）\n");
            scanf("%s", name);
            scanf("%s", sex);
            scanf("%s", addr);
            strcpy(link_man->pnext->name, name);
            strcpy(link_man->pnext->sex, sex);
            strcpy(link_man->pnext->addr, addr);
            scanf("%d", &link_man->pnext->year);
            scanf("%d", &link_man->pnext->phone_num);
            return head;
        }
        else
            link_man = link_man->pnext;
 
    }
    return head;
}
 
void search_linkman(pbook head)
{
    char name[10];
    pbook link_man = head;
     
    if (!head)
    {
        printf("没有联系人，查找失败！\n");
        return null;
    }
    printf("请问你要查找哪位联系人？  ");
    scanf("%s", name);
    while (link_man->pnext != null)
    {
        if (strcmp(link_man->pnext->name, name) == 0)
        {
            printf("%s\n", link_man->pnext->name);
            printf("%s\n", link_man->pnext->sex);
            printf("%s\n", link_man->pnext->addr);
            printf("%d\n", link_man->pnext->year);
            printf("%ld\n", link_man->pnext->phone_num);
            printf("***********************************\n");
            return 0;
        }
        else
            link_man = link_man->pnext;
 
    }
    printf("没有找到！\n");
}
void start(pbook *phead)
{
    int i = -1;
    assert(phead);
    while (1)
    {
        printf("欢迎使用电话薄系统！选择您的操作：\n\n");
        printf("*********************************************\n"
               "*1.添加联系人信息     2.删除指定联系人信息  *\n"
               "*3.查找指定联系人信息 4.修改指定联系人信息  *\n"
               "*5.显示所有联系人信息 6.清空所有联系人      *\n"
               "*0.结束系统！ ————中情局专用————    *\n"
               "*********************************************\n");
        scanf("%d",&i);
        switch (i)
        {
        case 0:
            printf("*****感谢使用本系统!*****\n");
            exit(0);
        case 1:
            *phead=add_linkman( phead);
            break;
        case 2:
            *phead = remove_linkman(phead);
            break;
        case 3:
             search_linkman(phead);
            break;
        case 4:
            *phead = amend_linkman(phead);
            break;
        case 5:
            traver_linkman(phead);
            break;
        case 6:
            empty_linkman( phead);
            break;
        default:
            printf("选择有误！请重新选择\n");
            break;
        }      
    }
}
#include<stdio.h>
#include"phone_book.h"
 
int main()
{
     pbook phead = null;
    start(&phead);
    return 0;
}