C语言实现通讯录

#pragma once
#include<stdio.h>
#include<stdlib.h>
#include<assert.h>
#include<string.h>
#define NAME_MAX 20
#define SEX_MAX 5
#define TELE_MAX 12
#define ADDR_MAX 30
#define MAX    1000
#define DEFAULT_SZ 3
#define DEFAULT_INC 2
typedef struct PeoInfo
{
  char name[NAME_MAX];
  int age;
  char sex[SEX_MAX];
  char tele[TELE_MAX];
  char addr[ADDR_MAX];
}PeoInfo;
typedef struct Contact
{
  PeoInfo* data;
  int sz;
  int capacity;
}Contact;
//初始化通讯录
void InitContact(Contact* pc);
//增加联系人
void Add(Contact* pc);
//删除联系人
void Dele(Contact* pc);
//查找联系人
void SearchContact(Contact* pc);
//修改联系人
void Modify(Contact* pc);
//显示联系人
void Show(Contact* pc);
//清空联系人
void Empty(Contact* pc);
//排序
void SortByAge(Contact* pc);
//保存信息到文件
void SaveContact(Contact* pc);
//加载文件信息到通讯录
void LoadContact(Contact* pc);
//检查是否需要扩容
void CheckCapacity(Contact* pc);

#define _CRT_SECURE_NO_WARNINGS 1
#include"tongxunlu.h"
//void InitContact(Contact* pc) 此版本初始化通讯录为非文件动态初始化版本
//{
//  pc->sz = 0;
//  pc->capacity = 3;
//  PeoInfo* p = malloc(sizeof(PeoInfo) * pc->capacity);
//  pc->data = p;
//}
void Add(Contact* pc)
{
  if (pc->sz==pc->capacity)
  {
    PeoInfo* p=realloc(pc->data,sizeof(PeoInfo) * pc->capacity*2);
    if (p != NULL)
    {
      pc->data = p;
      pc->capacity *= 2;
      printf("增容成功!\n");
    }
  }
  printf("请输入名字\n");
  scanf("%s", pc->data[pc->sz].name);
  printf("请输入年龄\n");
  scanf("%d", &pc->data[pc->sz].age);
  printf("请输入性别\n");
  scanf("%s", pc->data[pc->sz].sex);
  printf("请输入电话\n");
  scanf("%s", pc->data[pc->sz].tele);
  printf("请输入地址\n");
  scanf("%s", pc->data[pc->sz].addr);
  pc->sz++;
  printf("增加成功！\n");
}
int FindByName(Contact* pc, char name[])
{
  assert(pc);
  int i = 0;
  for (i = 0; i < pc->sz; i++)
  {
    if (strcmp(pc->data[i].name, name) == 0)
    {
      return i;
    }
  }
  return -1;
}
void Dele(Contact* pc)
{
  char name[NAME_MAX];
  printf("请输入要删除人的姓名\n");
  scanf("%s", name);
  int ret = 0;
  ret = FindByName(pc, name);
  if (ret == -1)
    printf("该联系人不存在\n");
  int i = 0;
  for (int i = ret; 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[NAME_MAX];
  assert(pc);
  printf("请输入要查找人的名字:");
  scanf("%s", name);
  int ret = FindByName(pc, name);
  if (ret == -1)
  {
    printf("要查找的人不存在\n");
    return;
  }
  //显示出来
  printf("找到了\n");
  printf("%-20s%-5s%-5s%-12s%-30s\n", "名字", "年龄", "性别", "电话", "地址");
  printf("%-20s%-5d%-5s%-12s%-30s\n",
    pc->data[ret].name, pc->data[ret].age, pc->data[ret].sex, pc->data[ret].tele, pc->data[ret].addr);
}
void Modify(Contact* pc)
{
  char name[NAME_MAX];
  printf("请输入查找人姓名\n");
  scanf("%s", name);
  int ref = FindByName(pc, name);
  if (ref == -1)
  {
    printf("修改人不存在\n");
    return;
  }
  printf("请输入姓名\n");
  scanf("%s", pc->data[ref].name);
  printf("请输入年龄\n");
  scanf("%d", &pc->data[ref].age);
  printf("请输入性别\n");
  scanf("%s", pc->data[ref].sex);
  printf("请输入电话\n");
  scanf("%s", pc->data[ref].tele);
  printf("请输入地址\n");
  scanf("%s", pc->data[ref].addr);
  printf("修改成功!\n");
}
void Show(Contact* pc)
{
  for (int i = 0; i < pc->sz; i++)
  {
    printf("%-20s%-5s%-5s%-12s%-30s\n", "名字", "年龄", "性别", "电话", "地址");
    printf("%-20s%-5d%-5s%-12s%-30s\n", pc->data[i].name, pc->data[i].age, pc->data[i].sex, pc->data[i].tele, pc->data[i].addr);
  }
}
void Empty(Contact* pc)
{
  memset(pc->data, 0, sizeof(pc->data));
  pc->sz = 0;
  printf("清空成功\n");
}
void SortByAge(Contact* pc)
{
  for (int i = 0; i < pc->sz-1; i++)
  {
    for (int j = 0; j < pc->sz - i - 1; j++)
    {
      if (pc->data[j].age > pc->data[j + 1].age)
      {
        int Age = pc->data[j].age;
        pc->data[j].age = pc->data[j + 1].age;
        pc->data[j + 1].age = Age;
      }
  }
  }
  printf("排序成功！\n");
}
void CheckCapacity(Contact* pc)
{
  if (pc->sz == pc->capacity)
  {
    PeoInfo* ptr = (PeoInfo*)realloc(pc->data, (pc->capacity + DEFAULT_INC) * sizeof(PeoInfo));
    if (ptr != NULL)
    {
      pc->data = ptr;
      pc->capacity += DEFAULT_INC;
      printf("增容成功\n");
    }
    else
    {
      perror("AddContact->realloc");
      return;
    }
  }
}
void LoadContact(Contact* pc)
{
  FILE* pf = fopen("contact.txt", "rb");
  if (pf == NULL)
  {
    perror("LoadContact");
    return;
  }
  //读文件
  PeoInfo tmp = { 0 };
  while (fread(&tmp, sizeof(PeoInfo), 1, pf))
  {
    CheckCapacity(pc);
    pc->data[pc->sz] = tmp;
    pc->sz++;
  }
  fclose(pf);
  pf = NULL;
}
//文件版本的初始化函数
void InitContact(Contact* pc)
{
  assert(pc); 
  pc->sz = 0;
  pc->capacity = DEFAULT_SZ;
  pc->data = calloc(pc->capacity, sizeof(PeoInfo));
  if (pc->data == NULL)
  {
    perror("InitContact->calloc");
    return;
  }
  //加载文件中的信息到通讯录
  LoadContact(pc);
}
void SaveContact(Contact* pc)
{
  FILE* pf = fopen("contact.txt", "wb");
  if (pf == NULL)
  {
    perror("SaveContact");
    return;
  }
  //写信息到文件
  int i = 0;
  for (i = 0; i < pc->sz; i++)
  {
    //fwrite(&(pc->data[i]), sizeof(PeoInfo), 1, pf);
    fwrite(pc->data + i, sizeof(PeoInfo), 1, pf);
  }
  fclose(pf);
  pf = NULL;
}

#define _CRT_SECURE_NO_WARNINGS 1
#include"tongxunlu.h"
void begin()
{
  printf("******************************************************\n");
  printf("******  0.exit  ***********  1.添加  *****************\n");
  printf("******  2.删除  ***********  3.查找  *****************\n");
  printf("******  4.修改  ***********  5.显示  *****************\n");
  printf("******  6.清空  ***********  7.排序  *****************\n");
  printf("******************************************************\n");
}
int main()
{
  int input = 0;
  Contact con;
  InitContact(&con);
  do
  {
    begin();
    printf("请输入数字以选择通讯录功能\n");
    scanf("%d", &input);
    switch (input)
    {
    case 0:
      SaveContact(&con);
      printf("退出通讯录");
      break;
    case 1:
      Add(&con);
      break;
    case 2:
      Dele(&con);
      break;
    case 3:
      SearchContact(&con);
      break;
    case 4:
      Modify(&con);
      break;
    case 5:
      Show(&con);
      break;
    case 6:
      Empty(&con);
      break;
    case 7:
      SortByAge(&con);
      break;
    default:
      printf("输入数字有误，请重新输入\n");
      break;
    }
  } while (input);
  return 0;
}