C语言实现简单的通讯录

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

/*****************************************  File Name  : contacts.h*  Creat Data : 2015.3.17*  Author     : WK*****************************************/#ifndef __CONTACTS_H__#define __CONTACTS_H__#include <stdio.h>#include <string.h>#include <stdlib.h>#define MAX 1000#define NAME_LENGTH 20#define SEX_LENGTH 5#define TELE_LENGTH 20#define ADDR_LENGTH 30struct PeopleInfo{char name[NAME_LENGTH];char sex[SEX_LENGTH];int age;char tele[TELE_LENGTH];char addr[ADDR_LENGTH];};struct Contacts{struct PeopleInfo person[MAX];int user_count;};typedef struct Contacts *pContacts;int add_mess(pContacts pcon);int dele_mess(pContacts pcon);int clear_mess(pContacts pcon);int find_mess(pContacts pcon);int modify_mess(pContacts pcon);void show_mess(pContacts pcon);#endif

/*****************************************  File Name  : contact.c*  Creat Data : 2015.3.17*  Author     : WK*****************************************/#include "contacts.h"int find_entry(pContacts pcon)//找到该人信息所存储的数组下标{int i = 0 ;char name[NAME_LENGTH];printf("Please input name:");scanf("%s",name);for(i = 0;i < pcon->user_count;i++){if(strcmp(pcon->person[i].name ,name) == 0){return i;}}return -1;}int add_mess(pContacts pcon){if(pcon->user_count == MAX){printf("Telephone book is full！\n");return -1;}printf("Please input name:");scanf("%s",pcon->person[pcon->user_count].name);printf("Please input sex:");scanf("%s",pcon->person[pcon->user_count].sex);printf("Please input age:");scanf("%d",&(pcon->person[pcon->user_count].age));printf("Please input tele:");scanf("%s",pcon->person[pcon->user_count].tele);printf("Please input addr:");scanf("%s",pcon->person[pcon->user_count].addr);pcon->user_count++;//人数加一return 1;}int dele_mess(pContacts pcon){int i = 0;int ret = find_entry(pcon);if(ret != -1){for(i = ret;i < pcon->user_count-1;i++)//注意此处要照顾到i+1,当i=user_count-1-1时，i+1=user_count,否则就越界了{pcon->person[i] = pcon->person[i+1];}pcon->user_count--;//人数减一return 1;}else{printf("not exist!\n");return -1;}}int clear_mess(pContacts pcon){pcon->user_count = 0;return 1;}int find_mess(pContacts pcon){int ret = find_entry(pcon);if(ret != -1){printf("name:%s\n",pcon->person[ret].name);printf("sex:%s\n",pcon->person[ret].sex);printf("age:%d\n",pcon->person[ret].age);printf("tele:%s\n",pcon->person[ret].tele);printf("addr:%s\n",pcon->person[ret].addr);return 1;}else{printf("not exist!\n");return -1;}}int modify_mess(pContacts pcon){int ret = find_entry(pcon);if(ret != -1){printf("Please input name:");scanf("%s",pcon->person[ret].name);printf("Please input sex:");scanf("%s",pcon->person[ret].sex);printf("Please input age:");scanf("%s",pcon->person[ret].age);printf("Please input tele:");scanf("%s",pcon->person[ret].tele);printf("Please input addr:");scanf("%s",pcon->person[ret].addr);return 1;}else{printf("not exist!\n");return -1;}}void show_mess(pContacts pcon){int i = 0;printf("\tname\tsex\t\tage\t\ttele\t\t\taddr\n");for(i = 0;i < pcon->user_count;i++){printf("%10s\t",pcon->person[i].name);printf("%5s\t", pcon->person[i].sex);printf("%10d\t",pcon->person[i].age);printf("%15s\t",pcon->person[i].tele);printf("%20s\t",pcon->person[i].addr);}printf("\n");}

/*****************************************  File Name  : main.c*  Creat Data : 2015.3.17*  Author     : WK*****************************************/#include "contacts.h"int main(){int num=0;struct Contacts person;person.user_count = 0;    printf("                     welcome using\n");  printf("\n");  printf("         The telephone_Book Management System    \n");  printf("\n");  printf("     *******************Menu********************\n");  printf("     *       1  add person's message           *\n");  printf("     **      2  delete person's message        *\n");  printf("     ***     3  find person's message          *\n");  printf("     ****    4  modify person's message        *\n");  printf("     *****   5  show all of person's message   *\n");  printf("     ******  6  clear all of person's message  *\n");  printf("     !!!!!!! 0  quit                           *\n");  printf("     *******************************************\n");  while(1)  {  printf("please input a number which is you want to operate: ");  scanf("%d",&num);  switch(num)  {  case 1:    add_mess( &person);       break;     case 2:   dele_mess( &person);      break;  case 3:   find_mess( &person);      break;  case 4:   modify_mess( &person);      break;  case 5:   show_mess(&person);      break;  case 6:   clear_mess( &person);     break;  case 0:   printf("Dear! Thanks for using\n");     break;     default:  printf("input error");        break;  }  }return 0;}