[C语言] 通讯录

通讯录

test.c

#include "contact.h"



void menu()
{
  printf("********************************\n");
  printf("*******  1.add    2.del    *****\n");
  printf("*******  3.search 4.modify *****\n");
  printf("*******  5.sort   6.print  *****\n");
  printf("*******  0.exit            *****\n");
  printf("********************************\n");
}


enum option
{            //枚举类型成员最好大写
  EXIT,
  add,
  del,
  search,
  modify,
  sort,
  print

};

int main()
{
  int input = 0;
  //创建通讯录
  Contact con;
  //初始化通讯录
  //给data申请一块连续的空间在堆上
  InitContact(&con);
  do
  {
    menu();
    printf("请选择:>");
    scanf("%d", &input);
    switch (input)
    {
    case add:
      AddContact(&con);
      break;
    case del:
      DelContact(&con);
      break;
    case search:
      SearchContact(&con);
      break;
    case modify:
      ModifyContact(&con);
      break;
    case sort:
      //自己完善
      break;
    case print:
      PrintContact(&con);   //即使不修改数据 传地址也比较好
      break;
    case EXIT:
      DestoryContact(&con);
      printf("退出通讯录\n");
      break;
    default:
      printf("输入有误,请重新输入;>");
      break;
    }


  } while (input);


  return 0;
}

contact.h

#define _CRT_SECURE_NO_WARNINGS 1
#pragma once
//头文件
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

//定义
#define MAX_NAME 20
#define MAX_SEX 10
#define MAX_TELE 12
#define MAX_ADDR 30

#define DEFAULT_SZ 3
#define INC_SZ 2

#define MAX 1000

//类型的定义
typedef struct PeoInfo
{
  char name[MAX_NAME];
  int age;
  char sex[MAX_SEX];
  
  char tele[MAX_TELE];
  char addr[MAX_ADDR];
}PeoInfo;  //把struct PeoInfo  简写为 PeoInfo 

typedef struct Contact
{
  //创建通讯录       动态版本
  PeoInfo* data;  //申请动态空间
  int sz;
  int capacity;//最大容量
}Contact;

//初始化通讯录
void InitContact(Contact* pc);


//增加联系人
void AddContact(Contact* pc);


//打印通讯录信息
void PrintContact(const Contact* pc);


//删除通讯录的信息
void DelContact(Contact* pc);

//查找通讯录
void SearchContact(Contact* pc);


//FindByName定义
int FindByName(Contact* pc, char name[]);


//修改通讯录
void ModifyContact(Contact* pc);


//销毁通讯录
void DestoryContact(Contact *pc);

contact.c

#include "contact.h"
static int FindByName(Contact* pc, char name[])
{
  int i = 0;
  for (i = 0; i < pc->sz; i++)
  {
    if (strcmp(pc->data[i].name, name) == 0)
    {
      return i;
    }

  }
  return -1;  //找不到
}


//静态版本初始化
void InitContact(Contact* pc)
{
  pc->data = (PeoInfo*)malloc(DEFAULT_SZ*sizeof(PeoInfo));
  if (pc->data == NULL)
  {
    perror("InitContact");
    return;
  }
  pc->sz = 0;//初始化之后默认是0
  pc->capacity = DEFAULT_SZ;
}

void AddContact(Contact* pc)
{
  //增加容量
  if (pc->sz == pc->capacity)
  {
    PeoInfo* ptr = realloc(pc->data,(pc->capacity+INC_SZ)*sizeof(PeoInfo));
    if (ptr != NULL)
    {
      pc->data = ptr;
      pc->capacity += INC_SZ;
      printf("增容成功\n");
    }
    else
    {
      perror("AddContact");
      printf("增加联系人失败");
      return;
    }
  }
  // 增加一个人的信息
  printf("输入名字;>");
  scanf("%s", pc->data[pc->sz].name);
  printf("输入年龄:>");
  scanf("%d", &pc->data[pc->sz].age);
  printf("输入性别:>");
  scanf("%s", pc->data[pc->sz].sex);
  printf("输入电话:>");
  scanf("%s", pc->data[pc->sz].tele);
  printf("输入地址:>");
  scanf("%s", pc->data[pc->sz].addr);
  pc->sz++;
  printf("增加成功\n");
}

void PrintContact(const Contact* pc)
{
  int i = 0;
  //打印标题
  printf("%20s\t %5s\t %5s\t %12s\t %20s\n","name","age","sex","tele","addr");
  for (i = 0; i < pc->sz; i++)
  {
    printf("%20s\t %5d\t %5s\t %12s\t %20s\n",
      pc->data[i].name,
      pc->data[i].age,
      pc->data[i].sex,
      pc->data[i].tele,
      pc->data[i].addr   );

  }

}
void DelContact(Contact* pc)
{
  char name[MAX_NAME] = { 0 };

  if (pc->sz == 0)
  {
    printf("通讯录为空,无需删除\n");
    return;
  }
  printf("请输入要删除人的名字:>");
  scanf("%s",name);
  //查找
  int pos = FindByName(pc, name);
  //yes/no
  if (pos == -1)
  {
    printf("要删除的人不存在\n");
  }
  else
  {      //删除
    int i = 0;
    for (i = pos; i < pc->sz - 1; i++)
    {
      pc->data[i] = pc->data[i + 1];
    }
    pc->sz--;
    printf("删除成功\n");
  }
  

}


void SearchContact(Contact* pc)
{
  char name[MAX_NAME] = { 0 };
  printf("请输入要查找人的名字:>");
  scanf("%s", name);
  int pos = FindByName(pc, name);
  if (pos == -1)
  {
    printf("要查找的人不存在\n");
  }
  else
  {
    int i = 0;
    //打印标题
    printf("%20s\t %5s\t %5s\t %12s\t %20s\n", "name", "age", "sex", "tele", "addr");
    
    
    printf("%20s\t %5d\t %5s\t %12s\t %20s\n",
        pc->data[pos].name,
        pc->data[pos].age,
        pc->data[pos].sex,
        pc->data[pos].tele,
        pc->data[pos].addr);

    
  }
    
    
}


void ModifyContact(Contact* pc)
{
  char name[MAX_NAME] = { 0 };

  
  printf("请输入要修改人的名字:>");
  scanf("%s", name);
  //查找
  int pos = FindByName(pc, name);
  //yes/no
  if (pos == -1)
  {
    printf("要修改的人不存在\n");
  }
  else
  {      //修改
    // 增加一个人的信息
    printf("输入名字;>");
    scanf("%s", pc->data[pos].name);
    printf("输入年龄:>");
    scanf("%d", &pc->data[pos].age);
    printf("输入性别:>");
    scanf("%s", pc->data[pos].sex);
    printf("输入电话:>");
    scanf("%s", pc->data[pos].tele);
    printf("输入地址;>");
    scanf("%s", pc->data[pos].addr);
    printf("修改成功\n");
  }

}


void DestoryContact(Contact* pc)
{



  free(pc->data);
  pc->data = NULL;
  pc->sz = 0;
  pc->capacity = 0;
}