通讯管理系统

#include<iostream>
#include<string>
using namespace std;
#define MAX 1000
// 设计联系人结构体
struct Person {
    //姓名
    string m_Name;
    //性别 1:男 2:女
    int m_Sex;
    //年龄
    int m_Age;
    //电话
    string m_Phone;
    //住址
    string m_Addr;

};
//设计通讯录结构体
struct Addressbooks {
    //通讯录中保存的联系人数组
    struct Person personArray[MAX];
    //通讯录中当前记录联系人个数
    int m_Size;
};


void addPerson(Addressbooks* abs) {
    if (abs->m_Size == MAX)
    {
        cout << "通讯录已满，无法添加！";
        return;
    }
    else {
        //添加具体联系人
        //姓名
        string name;
        cout << "请输入姓名：";
        cin >> name;
        abs->personArray[abs->m_Size].m_Name = name;
        // 性别
        int sex = 0; //输出指定性别信息，否则循环输入
        while (true) {
            cout << "请输入性别（男：1、女：2）：";
            cin >> sex;
            if (sex == 1 || sex == 2) {
                abs->personArray[abs->m_Size].m_Sex = sex;
                break;
            }
            else
            {
                cout << "输入有误、重新输入。。。" << endl;
            }

        }
        // 年龄
        int age;
        cout << "请输入年龄：";
        cin >> age;
        abs->personArray[abs->m_Size].m_Age = age;

        // 电话 
        string phone;
        cout << "请输入电话：";
        cin >> phone;
        abs->personArray[abs->m_Size].m_Phone = phone;
        // 住址
        string addr;
        cout << "请输入住址：";
        cin >> addr;
        abs->personArray[abs->m_Size].m_Addr = addr;
        // 更新通讯录人数
        abs->m_Size++;
        cout << "添加成功。。。" << endl;
        system("pause");
        system("cls");
    }
}

void showPerson(Addressbooks* abs) {
    //判断通讯录中人数是否为0
    if (abs->m_Size == 0) {
        cout << "通讯录中人数为空、请先添加联系人" << endl;
        system("pause");
        system("cls");
    }
    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，存在则返回下标，不存在则返回-1
int isExist(Addressbooks * abs, string nameperson) {
    for (int i = 0; i < abs->m_Size; i++) {
        if (abs->personArray[i].m_Name == nameperson) {
            return i;
        }

    }
    return -1;
}

void deletePerson(Addressbooks * abs) {
    cout << "请输入您要删除的联系人姓名：";
    string name;
    cin >> name;
    int res = isExist(abs, name);
    if (res == -1) {
        cout << "查无此人" << endl;
        system("pause");
        system("cls");
    }
    else {
        cout << "您确定要删除此人吗？确定输入y，其他输入则取消：";
        string in;
        cin >> in;
        if (in == "y" || in == "Y") {
            //删除
            for (int i = res; i < abs->m_Size; i++) {
                abs->personArray[i] = abs->personArray[i + 1];
            }
            abs->m_Size--; //更新通讯录中的人数
            cout << "删除成功。。。" << endl;
            system("pause");
            system("cls");
        }
        else {
            cout << "取消删除中。。。" << endl;
            system("pause");
            system("cls");
        }
    }


}
void findPersion(Addressbooks * abs) {
    cout << "输入您要查找的联系人：";
    string name;
    cin >> name;
    int res = isExist(abs, name);
    if (res == -1) {
        cout << "查无此人" << endl;
        system("pause");
        system("cls");
    }
    else {
        cout << "姓名：" << abs->personArray[res].m_Name << "\t";
        cout << "性别：" << (abs->personArray[res].m_Sex == 1 ? "男" : "女") << "\t";
        cout << "年龄：" << abs->personArray[res].m_Age << "\t";
        cout << "电话：" << abs->personArray[res].m_Phone << "\t";
        cout << "住址：" << abs->personArray[res].m_Addr << endl;
        system("pause");
        system("cls");
    }
}

void changePerson(Addressbooks * abs) {
    cout << "输入您要修改的联系人：";
    string name;
    cin >> name;
    int res = isExist(abs, name);
    if (res == -1) {
        cout << "查无此人" << endl;
        system("pause");
        system("cls");
    }
    else {
        string name;
        int sex;
        int age;
        string phone;
        string addr;
        cout << "新姓名：";
        cin >> name;
        abs->personArray[res].m_Name = name;
        cout << "新性别（男：1、女：2）：";
        cin >> sex;
        abs->personArray[res].m_Sex = sex;
        cout << "新年龄：";
        cin >> age;
        abs->personArray[res].m_Age = age;
        cout << "新电话：";
        cin >> phone;
        abs->personArray[res].m_Phone = phone;
        cout << "新住址：";
        cin >> addr;
        abs->personArray[res].m_Addr = addr;
        system("pause");
        system("cls");
    }
}

void clearPerson(Addressbooks* abs) {
    abs->m_Size = 0; // 将当前联系人数量置为0，做逻辑清空操作
    cout << "通讯录以清空。。。" << endl;
    system("pause");
    system("cls");
}


void showMenu() {
    cout << "*************************" << endl;
    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;
    cout << "*************************" << endl;

}






int main() {
    // 创建通讯录结构体本变量
    Addressbooks abs;
    //初始化通讯录中当前人员个数
    abs.m_Size = 0;   //为0时，无法查询到数据，可做逻辑删除处理
    int num;
    while (true)
    {
        showMenu(); // 显示功能界面

        cout << "请选择功能、输入功能列表前的数字：";
        cin >> num;
        cout << endl;

        switch (num) {
        case 1:   //添加联系人
            addPerson(&abs); //利用地址传递，可以修改实参
            break;
        case 2:   //显示联系人
            showPerson(&abs);
            break;
        case 3:   // 删除联系人
            deletePerson(&abs);
            break;
        case 4:  // 查找联系人
            findPersion(&abs);
            break;
        case 5: // 修改联系人
            changePerson(&abs);
            break;
        case 6: // 清空联系人
            clearPerson(&abs);
            break;
        case 0:  // 退出通讯录
            system("pause");
            return 0;
            break;
        default:
            break;

        }
    }
}