C++通讯录管理系统(结构体指针)

该程序可实现简单的通讯录管理逻辑~~~

#include<iostream>
#include<cstring>

using namespace std;

const int MAX = 1000;  //通讯录最多存储1000人的信息

int n,num;

struct Persons
{
    string name;
    int sex;
    int old;
    string phoneNum;
    string address;
};

struct Addressbooks
{
    struct Persons personArray[MAX];
    int num = 0;
};

void Init()  //界面初始化
{
    printf("----------------------------------------------------------\n");
    printf("-----------------------通讯录管理系统---------------------\n");
    printf("-----------------------1.添加联系人-----------------------\n");
    printf("-----------------------2.显示联系人-----------------------\n");
    printf("-----------------------3.删除联系人-----------------------\n");
    printf("-----------------------4.查找联系人-----------------------\n");
    printf("-----------------------5.修改联系人-----------------------\n");
    printf("-----------------------6.清空联系人-----------------------\n");
    printf("-----------------------0.退出通讯录-----------------------\n");
    printf("----------------------------------------------------------\n");
}

void system_exit()  // 用户输入0时
{
    printf("欢迎下次使用!\n");
    return ;
}

void add_person(Addressbooks * abs)
{
    if(abs->num == MAX)
    {
        cout<<"通讯录已满,无法添加";
        return;
    }
    else
    {
        string name;
        cout<<"请输入姓名 : "<<endl;
        cin>>name;
        abs->personArray[abs->num].name = name;

        int sex = 0;
        cout<<"请输入性别 : "<<endl;
        cout<<"1-----男"<<endl;
        cout<<"2-----女"<<endl;
        while(1)
        {
            cin>>sex;
            if(sex == 1 || sex == 2)
            {
                abs->personArray[abs->num].sex = sex;
                break;
            }
            cout<<"输入格式有误,请重新输入！"<<endl;
        }

        int old = 0;
        cout<<"请输入年龄 : "<<endl;
        while(1)
        {
            cin>>old;
            if(old >= 0 && old <= 120)
            {
                abs->personArray[abs->num].old = old;
                break;
            }
            cout<<"输入格式有误,请重新输入！"<<endl;
        }

        string phoneNum;
        cout<<"请输入当前联系人电话 : "<<endl;
        while(1)
        {
            cin>>phoneNum;
            if(phoneNum.size() == 11)
            {
                abs->personArray[abs->num].phoneNum = phoneNum;
                break;
            }
            cout<<"输入格式有误,请重新输入！"<<endl;
        }


        string address;
        cout<<"请输入地址 : "<<endl;
        cin>>address;
        abs->personArray[abs->num].address = address;

        abs->num++;
        cout<<"添加成功!"<<endl;
        system("pause");
        //system("cls");
    }
}

void show_person(Addressbooks * abs)
{
    if(abs->num == 0)
    {
        cout<<"暂时没有联系人,快来添加吧!"<<endl;
        system("pause");
        system("cls");
    }
    else
    {
        for(int i = 0;i < abs->num;i++)
        {
            cout<<"姓名 : "<<abs->personArray[i].name<<"\t";
            cout<<"性别 : "<<(abs->personArray[i].sex == 1? "男":"女")<<"\t";
            cout<<"年龄 : "<<abs->personArray[i].old<<"\t";
            cout<<"电话号码 : "<<abs->personArray[i].phoneNum<<"\t";
            cout<<"家庭地址 : "<<abs->personArray[i].address<<endl;
        }
        system("pause");
        system("cls");
    }
}

int is_exist(Addressbooks * abs,string people)
{
    for(int i = 0;i < abs->num;i++)
    {
        if(abs->personArray[i].name == people)
        {
            return i;
        }
    }
    return -1;
}

void delete_person(Addressbooks * abs,int name)
{
    for(int i = name;i < abs->num - 1;i++)
    {
        abs->personArray[i] = abs->personArray[i + 1];
    }
    abs->num--;
}

void find_person(Addressbooks * abs,int i)
{
    cout<<"姓名 : "<<abs->personArray[i].name<<"\t";
    cout<<"性别 : "<<(abs->personArray[i].sex == 1? "男":"女")<<"\t";
    cout<<"年龄 : "<<abs->personArray[i].old<<"\t";
    cout<<"电话号码 : "<<abs->personArray[i].phoneNum<<"\t";
    cout<<"家庭地址 : "<<abs->personArray[i].address<<endl;
}

void modify_person(Addressbooks * abs,int i)
{
    string name;
    cout<<"请输入姓名 : "<<endl;
    cin>>name;
    abs->personArray[i].name = name;

    int sex = 0;
    cout<<"请输入性别 : "<<endl;
    cout<<"1-----男"<<endl;
    cout<<"2-----女"<<endl;
    while(1)
    {
        cin>>sex;
        if(sex == 1 || sex == 2)
        {
            abs->personArray[i].sex = sex;
            break;
        }
        cout<<"输入格式有误,请重新输入！"<<endl;
    }

    int old = 0;
    cout<<"请输入年龄 : "<<endl;
    while(1)
    {
        cin>>old;
        if(old >= 0 && old <= 120)
        {
            abs->personArray[i].old = old;
            break;
        }
        cout<<"输入格式有误,请重新输入！"<<endl;
    }

    string phoneNum;
    cout<<"请输入当前联系人电话 : "<<endl;
    while(1)
    {
        cin>>phoneNum;
        if(phoneNum.size() == 11)
        {
            abs->personArray[i].phoneNum = phoneNum;
            break;
        }
        cout<<"输入格式有误,请重新输入！"<<endl;
    }


    string address;
    cout<<"请输入地址 : "<<endl;
    cin>>address;
    abs->personArray[i].address = address;

    cout<<"修改成功!"<<endl;
    //system("pause");
    //system("cls");
}

void clear_address(Addressbooks * abs)
{
    abs->num = 0;
    cout<<"通讯录已清空!"<<endl;
    system("pause");
    system("cls");
}

int main()
{
    Addressbooks abs;
    abs.num = 0;

    while(1)
    {
        system("cls");
        Init();
        cin>>n;
        switch(n)
        {
            case 0:
                system_exit();
                system("pause");
                return 0;
                break;
            case 1:
                add_person(&abs);
                break;
            case 2:
                show_person(&abs);
                break;
            case 3:
            {
                cout<<"请选择你要删除的对象 : "<<endl;
                string people;
                cin>>people;
                if(is_exist(&abs,people) != -1)
                {
                    cout<<"删除成功!"<<endl;
                    int name = is_exist(&abs,people);
                    delete_person(&abs,name);
                    system("pause");
                    system("cls");
                }
                else
                {
                    cout<<"查无此人"<<endl;
                    system("pause");
                    system("cls");
                }
            }
                break;
            case 4:
            {
                cout<<"请选择你要查询的对象 : "<<endl;
                string people;
                cin>>people;
                if(is_exist(&abs,people) != -1)
                {
                    cout<<"查询成功!"<<endl;
                    int name = is_exist(&abs,people);
                    find_person(&abs,name);
                    system("pause");
                    system("cls");
                }
                else
                {
                    cout<<"查无此人"<<endl;
                    system("pause");
                    system("cls");
                }
            }
                break;
            case 5:
            {
                cout<<"请选择要修改人员的姓名 : "<<endl;
                string people;
                cin>>people;
                if(is_exist(&abs,people) != -1)
                {
                    cout<<"该人员信息如下,请输入要修改的信息 : "<<endl;
                    int name = is_exist(&abs,people);
                    find_person(&abs,name);
                    modify_person(&abs,name);
                    system("pause");
                    system("cls");
                }
                else
                {
                    cout<<"查无此人"<<endl;
                    system("pause");
                    system("cls");
                }

            }
                break;
            case 6:
            clear_address(&abs);
                break;
            default:
                break;
        }
    }
}