编辑代码

#include<iostream>
using namespace std;
#include<string>
#define MAX 1000

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;
}
//联系人结构体
struct Person {
    string m_Name;
    int m_Sex;
    int m_Age;
    string m_Phone;
    string m_Addr;//住址
};

//通讯录结构体
struct Addressbooks {
    struct Person personArray[MAX];//通讯录中保存的联系人数组
    int m_Size;//通讯录中人员个数
};
//1、添加联系人
void addPerson(Addressbooks* abs) {
    //判断通讯录是否已满满了就不在添加
    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) {
            //如果输入的是1或2可以正常退出否则一直输入
            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");//按任意键继续操作
        system("cls");//清屏操作
    }
}

//2、显示所有联系人
void showPerson(Addressbooks* abs) {
    //判断通讯录中人数是否为0，如果是0，提示记录为空
    //如果不是0，显示记录的联系人信息
    if (abs->m_Size == 0) {
        cout << "通讯录中没有成员，请添加成员！" << 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");//清屏
}

//检测联系人是否存在，如果存在，返回联系人所在数组中的位置，不存在返回-1
//函数存在返回值所以需要带类型,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) {
            return i;//找到了返回所在数组位置
        }
    }
    return -1;//没找到返回-1
}

//删除指定联系人
void deletePerson(Addressbooks* abs) {
    cout << "请输入您要删除的联系人" << endl;

    string name;
    cin >> name;
    //ret = -1表示没有这个联系人 ret != -1 查到了
    int ret = isExist(abs, name);

    if (ret != -1) {
        //查到人要删除
        for (int i = ret; i < abs->m_Size; i++) {
            //数据前移
            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");
}

//查找指定联系人信息
void findPerson(Addressbooks* abs) {
    cout << "请输入您要查找的联系人：" << endl;
    string name;
    cin >> name;
    //判断联系人是否存在
    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 << "联系人不存在！！" << endl;
    }
    system("pause");
    system("cls");
}

//修改指定联系人信息
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);
    if (ret != -1) {
        //姓名
        cout << "请输入姓名：" << endl;
        string name;
        cin >> name;
        abs->personArray[ret].m_Name = name;
        //性别
        cout << "请输入年龄：" << endl;
        cout << "1---男" << endl;
        cout << "2---女" << endl;
        int sex = 0;
       
        while(true){
            cin >> sex;
            if (sex == 1 || sex == 2) {
                //输入正确退出循环
                abs->personArray[ret].m_Sex = sex;
                break;
            }
            cout << "输入有误，重新输入！" << endl;
        }
       
        //年龄
        cout << "请输入年龄：" << endl;
        int age;
        cin >> age;
        abs->personArray[ret].m_Age = age;
        //电话
        cout << "请输入电话：" << 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 << "联系人不存在！" << endl;
    }
    system("pause");
    system("cls");
}

//清空联系人
void cleanPerson(Addressbooks* abs) {
    //将当期记录的联系人数置为0，做逻辑上的删除
    abs->m_Size = 0;
    cout << "通讯录已清空！" << endl;
    system("pause");
    system("cls");

}
int main() {
    //创建通讯录结构体变量
    Addressbooks abs;
    //初始化通讯录中当前人员个数
    abs.m_Size = 0;

    int select = 0;//创建用户选择输入的变量

    while (true) {
        //菜单的调用
        showMenu();

        cin >> select;

        switch (select) {
        case 1://1、添加联系人
            addPerson(&abs);//利用地址传递可以修改实参
            break;
        case 2://2、显示联系人
            showPerson(&abs);
            break;
        case 3://3、删除联系人
            deletePerson(&abs);
            break;
        case 4://4、查找联系人
            findPerson(&abs);
            break;
        case 5://5、修改联系人
            modifyPerson(&abs);
            break;
        case 6://6、清空联系人
            cleanPerson(&abs);
            break;
        case 0://0、退出通讯录
            cout << "欢迎下次使用" << endl;
            system("pause");
            return 0;
            break;
        default:
            break;
        }
    }
    system("pause");
    return 0;
}