c++学习 --- 通讯录管理系统模板

#include <iostream>
#include <string>
using namespace std;

//5.1 联系人结构体
struct Person {
    string m_Name;      //姓名
    int m_Sex;          //性别 1 男，2 女
    int m_Age;          //年龄
    string m_Phone;     //电话
    string m_Addr;      //住址
};

//5.2 通讯录结构体
#define MAX 1000                       //最多支持的人数 1000
struct Addressbooks {
    struct Person personArray[MAX];    //通讯录中保存联系人的数组
    int m_Size;                        //通讯录中人员个数
};


//1.封装函数显示改界面 
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;

    return;
}

//5.4封装添加联系人函数
void addPerson(Addressbooks * abs) {
    //判断通讯录是否已满，如果满了就不再添加
    if (abs->m_Size == MAX) {
        cout << "通讯录已满，无法添加！" << endl;
        return;
    }
    else {
        //添加具体联系人
        //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;
            if (sex == 1 || sex == 2) {
                abs->personArray[abs->m_Size].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[abs->m_Size].m_Age = age;

        //电话
        cout << "请输入电话：" << endl;
        string phone;
        cin >> phone;
        abs->personArray[abs->m_Size].m_Phone = phone;
        
        //住址
        cout << "请输入家庭住址：" << endl;
        string address;
        cin >> address;
        abs->personArray[abs->m_Size].m_Addr = address;

        //更新通讯录人数
        abs->m_Size++;
        cout << "添加成功！" << endl;
        
        system("pause");
        //清除屏幕
        system("cls");
    }
    return;
}

//6、显示所有联系人
void showPerson(Addressbooks * abs) {
    //判断通讯录中人数是否为0，如果为0，提示记录为空
    //否则显示记录的联系人
    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");
    //清除屏幕
    system("cls");
    return;
}

//7.1检测联系人是否存在，如果存在，返回联系人所在数组中的剧吐位置，不存在返回-1
int isExist(Addressbooks * abs, string name) {
    for (int i = 0; i < abs->m_Size; i++) {
        //找到用户输入的姓名了
        if (abs->personArray[i].m_Name == name) {
            return i;
            //找到，返回这个人再数组中的下标
        }
    }
    return -1; //如果遍历结束了都没找到，返回-1
}

//7.删除指定的联系人
void deletePerson(Addressbooks * abs){
    cout << "请输入您要删除的联系人" << endl;
    string name;
    cin >> name;
    
    int ret = isExist(abs, name);
    if (ret != -1) {
        //查找到
        //将删除后的数据向前移动，并让通讯录中记录的人员个数做减一的操作。
        for (int i = ret; i < abs->m_Size; i++) {
            //数据前移
            abs->personArray[i] = abs->personArray[i + 1];
        }
        //更新通讯录中的人员数
        abs->m_Size--;
        cout << "删除成功" << endl;
    }
    else {
        //没查找到
        cout << "查无此人！" << endl;
    }
    system("pause");
    //清除屏幕
    system("cls");
    return;
}

//8.
void findPerson(Addressbooks * abs) {
    cout << "请输入要查找的联系人" << endl;
    string name;
    cin >> name;

    //判断指定联系人是否再通讯录中
    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 << "\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 << "未找到此联系人" << endl;
    }
    
    //任意键按下
    system("pause");
    //清除屏幕
    system("cls");
    return;
}

//9.
void modifyPerson(Addressbooks *abs){
    cout << "请输入您要修改的联系人" << endl;
    string name;
    cin >> name;

    int ret = isExist(abs, name);
    //找到指定联系人
    if (ret != -1) {
        //姓名
        string name;
        cout << "请输入姓名：" << endl;
        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;

        //住址
        cout << "请输入家庭住址：" << endl;
        string address;
        cin >> address;
        abs->personArray[ret].m_Addr = address;

        cout << "修改成功" << endl;
    }
    else {
        cout << "查无此人" << endl;
    }
    
    //任意键按下
    system("pause");
    //清除屏幕
    system("cls");
    return;
}

//10.
void cleanPerson(Addressbooks *abs) {
    //将当前记录联系人数量置位0，做逻辑清空操作
    abs->m_Size = 0;
    cout << "通讯录已清空" << endl;
    
    //任意键按下
    system("pause");
    //清除屏幕
    system("cls");
}

int main() {
    int select = 0;   //用户选择输入的变量
    
    //5.3创建通讯录结构体变量
    Addressbooks abs;
    abs.m_Size = 0;

    //4.循环处理
    while(true){

        //2.在main 函数中调用封装好的函数
        showMenu();
    
        //3.利用switch 分支结构，搭架子
        cin >> select;
        switch (select) {
            //5.
            case 1://1、添加联系人
                //5.5 测试
                addPerson(&abs);
                break;
            //6.
            case 2://2、显示联系人
                showPerson(&abs);
                break;
            //7.
            case 3://3、删除联系人
                deletePerson(&abs);
                break;
            //8.
            case 4://4、查找联系人
                findPerson(&abs);
                break;
            //9.
            case 5://5、修改联系人
                modifyPerson(&abs);
                break;
            //10.
            case 6://6、清空联系人
                cleanPerson(&abs);
                break;
            //11.
            case 0://0、退出通讯录
                cout << "欢迎下次使用通讯录" << endl;
                system("pause");
                return 1;
            default:
                    break;
        }

    }
    
    return 0;
}