通讯录管理系统实现

#include <iostream>
#include <string>
#include <algorithm>
using namespace std;
#define MAX 1000
//设计联系人的结构体
struct Person {
  //姓名
  string m_Name;
  //性别
  int m_Sex;
  //年龄
  int m_Age;
  //电话
  string m_Phone;
  //住址
  string m_Addr;
};
//设计通讯录的结构体
struct Addressbooks {
  //通讯录中保存的联系人的数组
  struct Person personArray[MAX];
  //通讯录中当前进度的联系人的个数
  int m_Size;
};
//添加联系人
void addPerson(Addressbooks* abs) {
  //判断通讯录是否已满，如果满了就不在添加
  if (abs->m_Size == MAX) {
    cout << "通讯录已满，无法添加！" << endl;
    return;
  }
  else {//添加联系人
    //姓名
    string name;
    cout << "请输入姓名" << endl;
    cin >> name;
    abs->personArray[abs->m_Size].m_Name = name;
    //性别
    cout << "请输入性别" << endl;
    cout << "1---男" << endl;
    cout << "2---女" << endl;
    int sex = 0;
    while (true) {
      cin >> sex;//如果输入是1或2可以退出循环
      //如果输入有误，重新输入
      if (sex == 1 || sex == 2) {
        abs->personArray[abs->m_Size].m_Sex = sex;
        break;
      }
    }
    //年龄
    cout << "请输入年龄" << endl;
    int age = 0;
    cin >> age;
    abs->personArray[abs->m_Size].m_Age = age;
    //联系电话
    cout << "请输入联系电话" << endl;
    string phone;
    cin >> phone;
    abs->personArray[abs->m_Size].m_Phone = phone;
    //住址
    cout << "请输入家庭地址" << endl;
    string address;
    cin >> address;
    abs->personArray[abs->m_Size].m_Addr = address;
    abs->m_Size++;
    cout << "添加成功" << endl;
    system("pause");
    system("cls");
  }
}
//显示所有的联系人
void showPerson(Addressbooks* abs) {
  //判断通讯录中联系人是否为0，如果为0，提示记录为空
  if (abs->m_Size == 0) {
    cout << "当前记录为空" << endl;
  }
  else {
    for (int i = 0; i < abs->m_Size; i++) {
      cout << "姓名：" << abs->personArray[i].m_Name << "\t";
      cout << "性别：" << (abs->personArray[i].m_Sex == 1 ? "男" : "女") << "\t";
      cout << "年龄：" << abs->personArray[i].m_Age << "\t";
      cout << "电话：" << abs->personArray[i].m_Phone << "\t";
      cout << "住址：" << abs->personArray[i].m_Addr << endl;
    }
  }
  system("pause");
  system("cls");
}
//检测联系人是否存在，如果存在返回联系人的小标，不存在返回-1
//参数一：通讯录  参数二：对比姓名
int isExist(Addressbooks* abs, string name) {
  for (int i = 0; i < abs->m_Size; i++) {
    if (abs->personArray[i].m_Name == name) {
      //找到输入的姓名了
      return i;
    }
  }
  return -1;//如果遍历结束没有找到，返回-1
}
//删除指定的联系人
void deletePerson(Addressbooks* abs) {
  cout << "请输入要删除的联系人" << endl;
  string name;
  cin >> name;
  int ret = isExist(abs, name);
  //ret==-1未找到
  if (ret != -1) {
    //查找到人，删除操作
    for (int i = ret; i < abs->m_Size; i++) {
      abs->personArray[i] = abs->personArray[i + 1];
    }
    abs->m_Size--;//更新通讯录中的人员数
    cout << "删除成功" << endl;
  }
  else {
    cout << "查无此人" << endl;
  }
  system("pause");
  system("cls");
}
//查找指定的联系人
void findPerson(Addressbooks* abs) {
  cout << "请输入你要查找的联系人" << endl;
  string name;
  cin >> name;
  //判断指定的联系人是否存在通讯录中
  int ret = isExist(abs, name);
  if (ret != -1) {
    cout << "姓名：" << abs->personArray[ret].m_Name << "\t";
    cout << "性别：" << (abs->personArray[ret].m_Sex == 1 ? "男" : "女") << "\t";
    cout << "年龄：" << abs->personArray[ret].m_Age << "\t";
    cout << "电话：" << abs->personArray[ret].m_Phone << "\t";
    cout << "住址：" << abs->personArray[ret].m_Addr << endl;
  }
  else {
    cout << "查无此人" << endl;
  }
  system("pause");
  system("cls");
}
//修改指定的联系人
void modifyPerson(Addressbooks* abs) {
  cout << "请输入你要修改的联系人" << endl;
  string name;
  cin >> name;
  int ret = isExist(abs, name);
  if (ret != 1) {
    //找到了指定的联系人
    //姓名
    cout << "请输入姓名：" << endl;
    string name;
    cin >> name;
    abs->personArray[ret].m_Name = name;
    //性别
    cout << "请输入性别" << endl;
    cout << "1---男" << endl;
    cout << "2---女" << endl;
    int sex = 0;
    while (true) {
      cin >> sex;
      if (sex == 1 || sex == 2) {
        abs->personArray[ret].m_Sex = sex;
        break;
      }
      cout << "输入有误，请重新输入" << endl;
    }
    //年龄
    cout << "请输入年龄" << endl;
    int age = 0;
    cin >> age;
    abs->personArray[ret].m_Age = age;
    //电话
    cout << "请输入联系电话" << endl;
    string phone;
    cin >> phone;
    abs->personArray[ret].m_Phone = phone;
    //地址
    cout << "请输入家庭住址" << endl;
    string address;
    cin >> address;
    abs->personArray[ret].m_Addr = address;
  }
  else {
    cout << "查无此人" << endl;
  }
  system("pause");
  system("cls");
}
//清空联系人
void cleanPerson(Addressbooks* abs) {
  abs->m_Size = 0;//将当前记录的联系人数量置为0，做逻辑上的清空操作
  cout << "通讯录已经清空" << endl;
  system("pause");
  system("cls");
}
//显示菜单界面
void showMenu() {
  cout << "1.添加联系人" << endl;
  cout << "2.显示联系人" << endl;
  cout << "3.删除联系人" << endl;
  cout << "4.查找联系人" << endl;
  cout << "5.修改联系人" << endl;
  cout << "6.清空联系人" << endl;
  cout << "0.退出通讯录" << endl;
}
int main() {
  //创建通许录的结构体变量
  Addressbooks abs;
  //初始化通讯录中当前的人员个数
  abs.m_Size = 0;
  int select = 0;//创建用户选择输入的变量
  while (true) {
    showMenu();
    cin >> select;
    switch (select) {
    case 1://添加联系人
      addPerson(&abs);//利用地址传递，可以修饰实参
      break;
    case 2:
      showPerson(&abs);//显示联系人
      break;
    case 3://删除联系人
      deletePerson(&abs);
      break;
    case 4://查找联系人
      findPerson(&abs);
      break;
    case 5://修改联系人
      modifyPerson(&abs);
      break;
    case 6://清空联系人
      cleanPerson(&abs);
      break;
    case 0://退出通讯录
      cout << "欢迎下次使用" << endl;
      system("pause");
      return 0;
      break;
    default:
      break;
    }
  }
}