C++基本入门到精通——通讯录实现

照着B站上写的，然后加了点自己的写法

• 头文件

#pragma once
#include<iostream>
#include<string>
#define Size 100
#define OK 1
#define Error -1
using namespace std;
// 结构体，通讯录人
struct Person
{
  // 名字
  string m_Name;
  // 性别 1男 2 女
  int m_Sex;
  // 年龄
  int m_Age;
  // 电话
  string m_Phone;
  // 地址
  string m_Addr;
};
// 通讯录
struct AddressBooks
{
  struct Person personArray[Size];
  // 通讯录个数
  int m_size;
};
// 显示界面
void showMenu() {

  cout << "*******************************************" << endl;
  cout << "**************  1.0 添加联系人  *************" << endl;
  cout << "**************  2.0 显示联系人  *************" << endl;
  cout << "**************  3.0 删除联系人  *************" << endl;
  cout << "**************  4.0 查找联系人  *************" << endl;
  cout << "**************  5.0 修改联系人  *************" << endl;
  cout << "**************  6.0 清空联系人  *************" << endl;
  cout << "**************  0.0 退出通讯录  *************" << endl;
  cout << "*******************************************" << endl;
}
// 添加联系人
void addPerson(AddressBooks* addressBooks) {
  // 判断通讯录慢了没
  if (addressBooks->m_size == Size) {
    cout << "通讯录已满，无法添加！" << endl;
    return;
  }
  else {
    // 名字
    // 性别 1 男 2 女
    // 年龄
    // 电话
    // 地址
    string name;
    cout << "请输入姓名:" << endl;
    cin >> name;
    addressBooks->personArray[addressBooks->m_size].m_Name = name;
    int sex;
    cout << "请输入性别(数字) 1: 男 2: 女:" << endl;
    cin >> sex;
    addressBooks->personArray[addressBooks->m_size].m_Sex = sex;
    int age;
    cout << "请输入年龄:" << endl;
    cin >> age;
    addressBooks->personArray[addressBooks->m_size].m_Age = age;
    string phone;
    cout << "请输入电话:" << endl;
    cin >> phone;
    addressBooks->personArray[addressBooks->m_size].m_Phone = phone;
    string address;
    cout << "请输入地址:" << endl;
    cin >> address;
    addressBooks->personArray[addressBooks->m_size].m_Addr = address;
    cout << "添加成功！" << endl;
    addressBooks->m_size++;
  }
}
// 显示联系人
void showPerson(AddressBooks addressbooks) {
  if (addressbooks.m_size == 0) {
    cout << "通讯录为空！" << endl;
    return;
  }
  else {
    cout << "查询成功，记录如下：" << endl;
    for (size_t i = 0; i < addressbooks.m_size; i++)
    {
      cout << "\t姓名:" << addressbooks.personArray[i].m_Name
        << "\t性别：" << addressbooks.personArray[i].m_Sex
        << "\t年龄：" << addressbooks.personArray[i].m_Age
        << "\t电话" << addressbooks.personArray[i].m_Phone
        << "\t地址" << addressbooks.personArray[i].m_Addr << endl;
    }
    return;
  }
}
// 名字是否存在，返回下标
size_t nameIsExistBooks(AddressBooks *addressbooks, string name) {
  size_t  temp;
  if (addressbooks->m_size == 0) {
    cout << "通讯录为空" << endl;
    return -1;
  }
  else
  {
    for (size_t i = 0; i < addressbooks->m_size; i++)
    {
      if (addressbooks->personArray[i].m_Name == name) {
        temp = i;
        // 返回下标索引
        return temp;
      }
    }
    return -1;
  }
}
// 电话是否存在  返回下标
size_t phoneIsExistBooks(AddressBooks *addressbooks, string phone) {
  size_t  temp;
  if (addressbooks->m_size == 0) {
    cout << "通讯录为空" << endl;
    return -1;
  }
  else
  {
    for (size_t i = 0; i < addressbooks->m_size; i++)
    {
      if (addressbooks->personArray[i].m_Name == phone) {
        temp = i;
        // 返回下标索引
        return temp;
      }
    }
    return -1;
  }
}
// 是否为空
bool isNullBooks(AddressBooks *addressbooks) {
  return addressbooks->m_size == 0;
}
int deletePerson(AddressBooks *addressbooks)
{
  string name, phone;
  int select;
  int end = addressbooks->m_size;
  cout << "请输入选项:按照名字删除(1),按照电话删除(2):" << endl;
  cin>>select;
  if (select == 1) {
    // 名字删除
    cout << "请输入名字:" << endl;
    cin >> name;
    size_t index = nameIsExistBooks(addressbooks, name);
    if (index < 0)
    {
      cout << "查无此人！" << endl;
      return Error;
    }
    else
    {
      for (size_t i = index; i<end; i++)
      {
        addressbooks->personArray[i] = addressbooks->personArray[i + 1];
        addressbooks->m_size--;
        cout << "删除成功！" << endl;
        return OK;
      }
    }
  }
  else if (select == 2) {
    // 电话删除
    cout << "请输入电话:" << endl;
    cin >> name;
    size_t index = nameIsExistBooks(addressbooks, phone);
    if (index < 0)
    {
      cout << "查无此人！" << endl;
      return Error;
    }
    else
    {
      for (size_t i = index; i < end; i++)
      {
        addressbooks->personArray[i] = addressbooks->personArray[i + 1];
        addressbooks->m_size--;
        cout << "删除成功！" << endl;
        return OK;
      }
    }
  }
  else {
    // 其他选项
    cout << "操作失误！删除失败！" << endl;
    return Error;
  }
}