关于#c#的问题，如何解决？

Question

一.
课题研究现状
手机通讯录在我们生活中应用广泛，通讯录作为通讯录
地址的书本，当今的通讯录可以涵盖多项内容，实现了
人与人之间的交流需求。可利用结构体、函数等知识,
实现了清空，排序等功能。
二.技术支持
(1)结构体
（2）定义函数
（3）指针
（(4）realloc函数
三、计划实现的功能框架
1.添加联系人
2.删除联系人
3.显示联系人
4.查找联系人（根据首字母查找）
5.更改联系人信息
6.清空通讯录
7.收藏联系人

Answer 1

你看一下哈，可以参考。有注释，不清楚的可以问

#include <iostream>
#include <fstream>
#include <string>
#include<stdlib.h>
#include<windows.h>
#include <string.h>
using namespace std;
/*
1．手机卡联系人类：表示一个联系人
        数据成员包括：
姓名
电话号码
成员函数包括
带参并带默认值的构造函数
一组set函数为数据成员赋值
一组modify函数，修改数据成员的值
重载>>,<<运算符，完成对象的输入和输出操作
*/
class Mobilecardcontact
{
public:
    string name;
    string number;
    /*
    带参并带默认值的构造函数
    */
    Mobilecardcontact(string a = "a", string b = "b")
    {
        name = a; number = b;
    }
    /*
     重载>>,<<运算符，完成对象的输入和输出操作
     */
    friend istream& operator>>(istream& cin, Mobilecardcontact& b);
    friend ostream& operator<<(ostream& cout, Mobilecardcontact& b);
    int set(string a, string b);
    int modify();//修改数据成员的值
};
istream& operator>>(istream& cin, Mobilecardcontact& b)
{
    cout << "请输入姓名:" << endl;
    cin >> b.name;
    cout << "请输入电话号码:" << endl;
    cin >> b.number;
    return cin;
}
ostream& operator<<(ostream& cout, Mobilecardcontact& b)
{
    cout << "姓名：" << b.name << endl;
    cout << "电话号码：" << b.number << endl;
    return cout;
}
int Mobilecardcontact::set(string a,string b)
{
    name = a; number = b; return 0;
}
int Mobilecardcontact::modify()
{
    cout << "请选择要修改的信息：" << endl;
    cout << "修改姓名请输入1" << endl;
    cout << "修改号码输入2" << endl;
    int n; cin >> n;
    if (n == 1)
    {
        string a; cout << "请输入要修改成的名字" << endl;
        cin >> a; name = a;
    }
    else if (n == 2)
    {
        string a; cout << "请输入要修改成的电话号码" << endl;
        cin >> a; number = a;
    }
    return 0;
}
/*
2．手机联系人（继承于手机卡联系人类）：
新增数据成员：
籍贯
QQ号
成员函数包括
一组set函数为数据成员赋值
一组modify函数，修改数据成员的值
重载>>，<<运算符，完成数据成员的输入输出操作
*/
class Mobilecontact :public Mobilecardcontact
{

public:
    string nativeplace;//籍贯
    string qqnumber;//QQ号
    Mobilecontact(string a = "a", string b = "b", string c = "c", string d = "d") :Mobilecardcontact(a, b)
    {
        nativeplace = c; qqnumber = d;
    }
    friend istream& operator>>(istream& cin, Mobilecontact& b);
    friend ostream& operator<<(ostream& cout, Mobilecontact& b);
    int set(string a, string b);
    int modify();//修改数据成员的值
};
int Mobilecontact::set(string a, string b)
{
    nativeplace = a; qqnumber = b; return 0;
}
int Mobilecontact::modify()
{
    cout << "请选择要修改的信息：" << endl;
    cout << "修改姓名请输入1" << endl;
    cout << "修改号码请输入2" << endl;
    cout << "修改籍贯请输入3" << endl;
    cout << "修改QQ号码请输入4" << endl;
    int n; cin >> n;
    if (n == 1)
    {
        string a; cout << "请输入要修改成的名字" << endl;
        cin >> a; name = a;
    }
    else if (n == 2)
    {
        int a; cout << "请输入要修改成的电话号码" << endl;
        cin >> a; number = a;
    }
    else if (n == 3)
    {
        string a; cout << "请输入要修改成的籍贯" << endl;
        cin >> a; nativeplace = a;
    }
    else if (n == 4)
    {
        int a; cout << "请输入要修改成的QQ号码" << endl;
        cin >> a; qqnumber = a;
    }
    return 0;
}
istream& operator>>(istream& cin, Mobilecontact& b)
{
    cout << "请输入姓名：" << endl; cin >> b.name;
    cout << "请输入电话号码:" << endl; cin >> b.number;
    cout << "请输入籍贯：" << endl; cin >> b.nativeplace;
    cout << "请输入QQ号码：" << endl; cin >> b.qqnumber;
    return cin;
}
ostream& operator<<(ostream& cout, Mobilecontact& b)
{
    cout << "姓名：" << b.name << endl;
    cout << "电话号码：" << b.number << endl;
    cout << "籍贯：" << b.nativeplace << endl;
    cout << "QQ号码：" << b.qqnumber << endl;
    return cout;
}
/*
3．定义一个通讯簿抽象类，用来封装以下函数（为支持多态，可以将以下函数封装为纯虚函数）
            增加函数：增加一个联系人
            删除操作：删除一个联系人
            Display:显示所有联系人的信息
            修改某一联系人的信息：
            查询并显示某一联系人的信息：
*/
class addressbook
{
public:
    addressbook() { }
    virtual int addcontacter() = 0;
    virtual int inquire() = 0;
    virtual int deletecontacter() = 0;
    virtual int modification() = 0;
    virtual int showallcontacter() = 0;
    virtual int unloading() = 0;
    ~addressbook() {  }
};
/*
5．手机卡通讯簿类（这是一个数据库类，继承于通讯簿抽象类）：用于记录手机中存储的所有联系人的信息
        数据成员包括：
            手机联系人的数量
            手机联系人对象数组
        成员函数包括
            构造函数：读取文本文件中的数据,并根据文件内容创建联系人对象数组
            析构函数：将对象数组中的内容写入到文本文件中。
            增加函数：增加一个联系人
            删除操作：删除一个联系人
            Display:显示所有联系人的信息
            修改某一联系人的信息：
            查询并显示某一联系人的信息：
*/
class Mobilecardaddressbook :public addressbook
{
public:
    Mobilecardaddressbook()
    {
        cout << "                     ********************************" << endl;
        cout << "                     *      欢迎来到手机卡通讯簿    *" << endl;
        cout << "                     ********************************" << endl;

    }
    int addcontacter();
    int inquire();
    int deletecontacter();
    int modification();
    int showallcontacter();
    int unloading();
    ~Mobilecardaddressbook()
    {
        cout << "                     ********************************" << endl;
        cout << "                     *      成功离开手机通讯簿      *" << endl;
    }
};
int Mobilecardaddressbook::addcontacter()
{
    int m;
    string a[1000][2];
    fstream infile("Mobilecard contact.txt", ios::in);//打开源目录下已建好的手机卡通讯录
    if (!infile)
    {
        cout << "打开手机卡内存文件失败!" << endl;
    }
    for (int i = 0; i <= 1000; i++)
    {
        for (int j = 0; j < 2; j++)
        {
            infile >> a[i][j];
        }
        m = i;
        if (a[i][0] == "")
        {
            break;
        }
    }
    cout << "现在已经有：" << m << "个联系人" << endl;
    if (m < 1000)
    {
        //  cout << "请输入你想要添加到手机卡的联系人的姓名：" << endl;
        //  cout << "请输入你想要添加到手机卡的联系人的电话号码:" << endl;
        Mobilecardcontact A;
        cin >> A;
        cout << "您刚刚输入的信息为：" << endl;
        cout << A;
        fstream infile("Mobilecard contact.txt", ios::app | ios::out);
        if (!infile)
        {
            cout << "打开手机卡内存文件失败!" << endl;
        }
        infile << "姓名：" << A.name << endl;
        infile << "电话号码:" << A.number << endl;
        infile.close();
    }
    else if (m >= 1000)
    {
        cout << "无法添加" << endl;
    }
    return 0;
}
int Mobilecardaddressbook::inquire()
{
    string a[1000][2];
    cout << "请输入你想要查询联系人的姓名：" << endl;
    string b; cin >> b;
    string d;  d = "姓名：" + b;
    fstream infile("Mobilecard contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机卡内存文件失败!" << endl;
    }
    for (int i = 0; i <= 1000; i++)
    {
        for (int j = 0; j < 2; j++)
        {
            infile >> a[i][j];
        }
        if (d == a[i][0])
        {
            cout << "您查找的联系人信息为：" << endl;
            cout << d << endl;
            cout << a[i][1] << endl;
        }
    }
    infile.close();
    return 0;
}
int Mobilecardaddressbook::modification()
{
    string a[1000][2];
    int m;
    cout << "请输入你想要修改的联系人的电话号码：" << endl;
    string b; cin >> b;
    string d; d = "电话号码:" + b;
    fstream infile("Mobilecard contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机卡内存文件失败!" << endl;
    }
    for (int i = 0; i <= 1000; i++)
    {
        for (int j = 0; j < 2; j++)
        {
            infile >> a[i][j];
        }
        m = i;
        if (a[i][0] == "")
        {
            break;
        }
    }
    infile.close();
    for (int i = 0; i <= m; i++)
    {
        if (d == a[i][1])
        {
            cout << "请输入您要修改成的姓名：" << endl;
            string s, b;
            cin >> s;
            a[i][0] = "姓名：" + s;
            cout << "请输入您要修改成的电话号码：" << endl;
            cin >> b;
            a[i][1] = "电话号码:" + b;
            cout << "请输入您要修改成的籍贯：" << endl;
            cout << "修改成功！" << endl;
        }
    }
    fstream infile2("Mobilecard contact.txt", ios::out);
    if (!infile2)
    {
        cout << "打开手机卡内存文件失败!" << endl;
    }
    for (int i = 0; i <= m; i++)
    {
        for (int j = 0; j < 2; j++)
        {
            if (a[i][0] == "1" || a[i][1] == "1")
            {
                break;
            }
            else
            {
                infile2 << a[i][j] << endl;
            }
        }
    }
    infile2.close();
    return 0;
}
int Mobilecardaddressbook::deletecontacter()
{
    string a[1000][2];
    int m;
    cout << "请输入你想要删除的联系人的电话号码：" << endl;
    string b; cin >> b;
    string d; d = "电话号码:" + b;
    fstream infile("Mobilecard contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机卡内存文件失败!" << endl;
    }
    for (int i = 0; i <= 1000; i++)
    {
        for (int j = 0; j < 2; j++)
        {
            infile >> a[i][j];
        }
        m = i;
        if (a[i][0] == "")
        {
            break;
        }
    }
    infile.close();
    for (int i = 0; i <= m; i++)
    {
        if (d == a[i][1])
        {
            a[i][0] = "1";
            a[i][1] = "1";
            cout << "联系人删除成功" << endl;
        }
    }
    fstream infile2("Mobilecard contact.txt", ios::out);
    if (!infile2)
    {
        cout << "打开手机卡内存文件失败!" << endl;
    }
    for (int i = 0; i <= m; i++)
    {
        for (int j = 0; j < 2; j++)
        {
            if (a[i][0] == "1" || a[i][1] == "1")
            {
            }
            else
            {
                infile2 << a[i][j] << endl;
            }
        }
    }
    infile2.close();
    return 0;
}
int Mobilecardaddressbook::showallcontacter()
{
    int m;
    string a[1000][2];
    fstream infile("Mobilecard contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机卡内存文件失败!" << endl;
    }
    for (int i = 0; i < 1000; i++)
    {
        for (int j = 0; j < 2; j++)
        {
            infile >> a[i][j];
        }
        m = i;
        if (a[i][0] == "")
        {
            break;
        }
    }
    infile.close();
    for (int i = 0; i < m; i++)
    {
        for (int j = 0; j < 2; j++)
        {
            cout << a[i][j] << endl;
        }
    }
    return 0;
}
int Mobilecardaddressbook::unloading()
{
    int m1;
    string a[1000][2];
    fstream infile2("Mobilecard contact.txt", ios::in);
    if (!infile2)
    {
        cout << "打开手机卡内存文件失败!" << endl;
    }
    for (int i = 0; i < 1000; i++)
    {
        for (int j = 0; j < 2; j++)
        {
            infile2 >> a[i][j];
        }
        m1 = i;
        if (a[i][0] == "")
        {
            break;
        }
    }
    infile2.close();
    int m2;
    string b[1000][4];
    fstream infile("Mobile contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机内存文件失败!" << endl;
    }
    for (int i = 0; i < 1000; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            infile >> b[i][j];
        }
        m2 = i;
        if (b[i][0] == "")
        {
            break;
        }
    }
    for (int j = 0; j < m2; j++)
    {
        for (int i = 0; i < m1; i++)
        {
            if (b[j][1] == a[i][1])
            {
                a[i][0] = "1";
                a[i][1] = "1";
            }
        }
    }
    int sum;
    sum = m1 + m2 + 2;
    if (sum <= 1000)
    {
        int i1 = 0;
        int j1 = 0;
        cout << "手机卡联系人已转存到手机联系人中" << endl;
        cout << "（注：为了节省内存空间，姓名电话相同的项将不会进行转存！）" << endl;
        for (int i = m2; i < sum; i++)
        {
            for (int j = 0; j < 4; j++)
            {

                if (j == 0 || j == 1)
                {
                    b[i][j] = a[i1][j1];
                    j1++;
                }
                else if (j == 2 || j == 3)
                {
                    b[i][j] = "无此信息";
                    j1++;
                }
            }
            i1++;
            j1 = 0;
        }
        fstream infile2("Mobile contact.txt", ios::out);
        if (!infile2)
        {
            cout << "打开手机内存文件失败!" << endl;
        }
        for (int i = 0; i < sum; i++)
        {
            for (int j = 0; j < 4; j++)
            {
                if (b[i][0] == "1" || b[i][1] == "1")
                {
                    break;
                }
                else if (b[i][0] != "" || b[i][1] != "")
                {
                    infile2 << b[i][j] << endl;
                }
            }
        }
        infile2.close();
    }
    if (sum > 1000)
    {
        cout << "无法转存" << endl;
    }
    return 0;
}
/*
4．手机通讯簿类（这是一个数据库类，继承于通讯簿抽象类）：用于记录手机中存储的所有联系人的信息
        数据成员包括：
            手机联系人的数量
            手机联系人对象数组
        成员函数包括
            构造函数：读取文本文件中的数据,并根据文件内容创建联系人对象数组
            析构函数：将对象数组中的内容写入到文本文件中。
            增加函数：增加一个联系人
            删除操作：删除一个联系人
            Display:显示所有联系人的信息
            修改某一联系人的信息：
            查询并显示某一联系人的信息：
*/
class Mobileaddressbook :public addressbook
{
public:
    Mobileaddressbook()
    {
        cout << "                     ********************************" << endl;
        cout << "                     *       欢迎来到手机通讯簿     *" << endl;
        cout << "                     ********************************" << endl;

    }
    int addcontacter();
    int inquire();
    int deletecontacter();
    int modification();
    int showallcontacter();
    int unloading();
    ~Mobileaddressbook()
    {
        cout << "                     ********************************" << endl;
        cout << "                     *      成功离开手机通讯簿      *" << endl;
    }
};
int Mobileaddressbook::addcontacter()
{
    int m;
    string a[1000][4];
    fstream infile("Mobile contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机内存文件失败!" << endl;
    }
    for (int i = 0; i <= 1000; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            infile >> a[i][j];
        }
        m = i;
        if (a[i][0] == "")
        {
            break;
        }
    }
    cout << "现在手机中已经有：" << m << "个联系人" << endl;
    if (m < 1000)
    {
        // cout << "请输入你想要添加到手机的联系人的姓名：" << endl;
        // cout << "请输入你想要添加到手机的联系人的电话号码:" << endl;
        Mobilecontact A;
        cin >> A;
        cout << "您刚刚输入的信息为：" << endl;
        cout << A;
        fstream infile("Mobile contact.txt", ios::app | ios::out);
        if (!infile)
        {
            cout << "打开手机内存文件失败!" << endl;
        }
        infile << "姓名：" << A.name << endl;
        infile << "电话号码:" << A.number << endl;
        infile << "籍贯:" << A.nativeplace << endl;
        infile << "QQ号码:" << A.qqnumber << endl;
        infile.close();
        return 0;
    }
    else if (m >= 1000)
    {
        cout << "无法继续给手机添加新的联系人" << endl;
    }
}
int Mobileaddressbook::inquire()
{
    string a[1000][4];
    cout << "请输入你想要查询联系人的姓名：" << endl;
    string b; cin >> b;
    string d;  d = "姓名：" + b;
    fstream infile("Mobile contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机内存文件失败!" << endl;
    }
    for (int i = 0; i <= 1000; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            infile >> a[i][j];
        }
        if (d == a[i][0])
        {
            cout << "您查找的联系人信息为：" << endl;
            cout << d << endl;
            cout << a[i][1] << endl;
            cout << a[i][2] << endl;
            cout << a[i][3] << endl;
        }
    }
    infile.close();
    return 0;
}
int Mobileaddressbook::deletecontacter()
{
    string a[1000][4];
    int m;
    cout << "请输入你想要删的联系人的电话号码：" << endl;
    string b; cin >> b;
    string d; d = "电话号码:" + b;
    fstream infile("Mobile contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机内存文件失败!" << endl;
    }
    for (int i = 0; i <= 1000; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            infile >> a[i][j];
        }
        m = i;
        if (a[i][0] == "")
        {
            break;
        }
    }
    infile.close();
    for (int i = 0; i < m; i++)
    {
        if (d == a[i][1])
        {
            a[i][0] = "1";
            a[i][1] = "1";
            a[i][2] = "1";
            a[i][3] = "1";
            cout << "联系人删除成功" << endl;
        }
    }
    fstream infile2("Mobile contact.txt", ios::out);
    if (!infile2)
    {
        cout << "打开手机内存文件失败!" << endl;
    }
    for (int i = 0; i < m; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            if (a[i][0] == "1")
            {
                break;
            }
            else
            {
                infile2 << a[i][j] << endl;
            }
        }

    }
    infile2.close();
    return 0;
}
int Mobileaddressbook::modification()
{
    string a[1000][4];
    int m;
    cout << "请输入你想要修改的联系人的电话号码：" << endl;
    string b; cin >> b;
    string d; d = "电话号码:" + b;
    fstream infile("Mobile contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机内存文件失败!" << endl;
    }
    for (int i = 0; i <= 1000; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            infile >> a[i][j];
        }
        m = i;
        if (a[i][0] == "")
        {
            break;
        }
    }
    infile.close();
    for (int i = 0; i < m; i++)
    {
        if (d == a[i][1])
        {
            cout << "请输入您要修改成的姓名：" << endl;
            string s, b, c, d;
            cin >> s;
            a[i][0] = "姓名：" + s;
            cout << "请输入您要修改成的电话号码：" << endl;
            cin >> b;
            a[i][1] = "电话号码:" + b;
            cout << "请输入您要修改成的籍贯：" << endl;
            cin >> c;
            a[i][2] = "籍贯:" + c;
            cout << "请输入您要修改成的qq号码：" << endl;
            cin >> d;
            a[i][3] = "QQ号码:" + d;
            cout << "修改成功！" << endl;
        }
    }
    fstream infile2("Mobile contact.txt", ios::out);
    if (!infile2)
    {
        cout << "打开手机内存文件失败!" << endl;
    }
    for (int i = 0; i < m; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            if (a[i][0] == "1")
            {
                break;
            }
            else
            {
                infile2 << a[i][j] << endl;
            }
        }

    }
    infile2.close();
    return 0;
}

int Mobileaddressbook::showallcontacter()
{
    int m;
    string a[1000][4];
    fstream infile("Mobile contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机卡内存文件失败!" << endl;
    }
    for (int i = 0; i < 1000; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            infile >> a[i][j];
        }
    }
    infile.close();
    for (int i = 0; i < 1000; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            if (a[i][j] != "")
            {
                cout << a[i][j] << endl;
            }
        }
    }
    return 0;
}
int Mobileaddressbook::unloading()
{
    int m1;
    string a[1000][2];
    fstream infile("Mobilecard contact.txt", ios::in);
    if (!infile)
    {
        cout << "打开手机卡内存文件失败!" << endl;
    }
    for (int i = 0; i < 1000; i++)
    {
        for (int j = 0; j < 2; j++)
        {
            infile >> a[i][j];
        }
        m1 = i;
        if (a[i][0] == "")
        {
            break;
        }
    }
    infile.close();
    int m2;
    string b[1000][4];
    fstream infile2("Mobile contact.txt", ios::in);
    if (!infile2)
    {
        cout << "打开手机内存文件失败!" << endl;
    }
    for (int i = 0; i < 1000; i++)
    {
        for (int j = 0; j < 4; j++)
        {
            infile2 >> b[i][j];
        }
        m2 = i;
        if (b[i][0] == "")
        {
            break;
        }
    }
    infile2.close();
    for (int i = 0; i < m1; i++)
    {
        for (int j = 0; j < m2; j++)
        {
            if (a[i][1] == b[j][1])
            {
                b[j][0] = "1";
                b[j][1] = "1";
            }
        }
    }
    int sum;
    sum = m1 + m2 + 2;
    if (sum <= 1000)
    {
        int i1 = 0;
        int j1 = 0;
        cout << "手机联系人已转存到手机卡联系人中" << endl;
        cout << "（注：为了节省内存空间，姓名电话相同的项将不会进行转存！）" << endl;
        for (int i = m1; i < sum; i++)
        {
            for (int j = 0; j < 2; j++)
            {
                a[i][j] = b[i1][j1];
                j1++;
            }
            i1++;
            j1 = 0;
        }
        fstream infile2("Mobilecard contact.txt", ios::out);
        if (!infile2)
        {
            cout << "打开手机卡内存文件失败!" << endl;
        }
        for (int i = 0; i < sum; i++)
        {
            for (int j = 0; j < 2; j++)
            {
                if (a[i][0] == "1" || a[i][1] == "1")
                {
                    break;
                }
                else if (a[i][0] != "1" || a[i][1] != "1")
                {
                    infile2 << a[i][j] << endl;
                }
            }
        }
        infile2.close();
    }
    if (sum > 1000)
    {
        cout << "无法转存" << endl;
    }
    return 0;
}
/*
6．用户类（这是一个操作类，完成通讯簿的操作）：用户拥有两个通讯簿（一个是手机中存储的联系人，一个是手机卡中存储的联系人），并且可以对通讯录进行管理
        数据成员包括：
            两个通讯簿对象
        成员函数包括（成员函数体现用户的行为）：
            添加联系人：利用基类指针，调用相应的通讯簿对象（手机通讯簿或手机卡通信簿）的增加函数完成联系人的添加。实现动态联编，体现出多态特点。（下同）
            删除联系人：调用相应的通讯簿对象的删除操作删除一个联系人
            Display：显示相应的通讯簿中联系人的信息
            修改某一联系人的信息：调用通讯簿对象的函数完成操作
            查询并显示某一联系人的信息：调用通讯簿对象的函数完成操作
            将手机卡中的存储的联系人的信息移动到手机中
            将手机中存储的联系人的信息移动到手机卡中
            将手机卡中的存储的联系人的信息复制到手机中
            将手机中存储的联系人的信息复制到手机卡中
*/
class user
{
public:
    int n;
    user(int a)
    {
        /*
         cout << "                     ********************************" << endl;
         cout << "                     * 欢迎来到通讯录管理系统操作区 *" << endl;
         cout << "                     ********************************" << endl;
         */
        n = a;
        if (n == 1)
        {
            addcontacteru();
        }
        else if (n == 2)
        {
            inquair();
        }
        else if (n == 3)
        {
            deletecontact();
        }
        else if (n == 4)
        {
            modification();
        }
        else if (n == 5)
        {
            showallcontacter();
        }
        else if (n == 6)
        {
            unloading();
        }
    }
    ~user()
    {
        /*  cout << "----------------------------------" << endl;
          cout << "***离开通讯录管理系统操作区成功***" << endl;
          cout << "----------------------------------" << endl;
          */
    }
    int addcontacteru();
    int inquair();
    int deletecontact();
    int modification();
    int showallcontacter();
    int unloading();

};
int user::addcontacteru()
{
    while (n <= 10)
    {
        cout << "                     ********************************" << endl;
        cout << "                     *          增加联系人          *" << endl;
        cout << "                     ********************************" << endl;
        cout << "                     *   在手机中增加新的联系人:1   *" << endl;
        cout << "                     *  在手机卡中增加新的联系人:2  *" << endl;
        cout << "                     *         返回上一菜单：0      *" << endl;
        cout << "                     ********************************" << endl;
        int n; cin >> n;
        if (n == 1)
        {
            addressbook* a;
            Mobileaddressbook b;
            a = &b;
            a->addcontacter();
        }
        else if (n == 2)
        {
            addressbook* a;
            Mobilecardaddressbook c;
            a = &c;
            a->addcontacter();
        }
        else if (n == 0)
        {
            system("cls");//清屏
            break;
        }
    }
    return 0;
}
int user::modification()
{
    while (n <= 10)
    {
        cout << "                     ********************************" << endl;
        cout << "                     *          修改联系人          *" << endl;
        cout << "                     ********************************" << endl;
        cout << "                     *     修改手机中的联系人：1    *" << endl;
        cout << "                     *    修改手机卡中的联系人: 2   *" << endl;
        cout << "                     *         退出修改界面：0      *" << endl;
        cout << "                     ********************************" << endl;
        int n;
        cin >> n;
        if (n == 1)
        {
            addressbook* a;
            Mobileaddressbook b;
            a = &b;
            a->modification();
        }
        else if (n == 2)
        {
            addressbook* a;
            Mobilecardaddressbook c;
            a = &c;
            a->modification();
        }
        else if (n == 0)
        {
            system("cls");//清屏
            break;
        }
    }
    return 0;
}
int user::inquair()
{
    while (n <= 10)
    {
        cout << "                     ********************************" << endl;
        cout << "                     *          查询联系人          *" << endl;
        cout << "                     ********************************" << endl;
        cout << "                     *     查询手机中的联系人：1    *" << endl;
        cout << "                     *    查询手机卡中的联系人: 2   *" << endl;
        cout << "                     *         退出查询界面：0      *" << endl;
        cout << "                     ********************************" << endl;
        int n;
        cin >> n;
        if (n == 1)
        {
            addressbook* a;
            Mobileaddressbook b;
            a = &b;
            a->inquire();
        }
        else if (n == 2)
        {
            addressbook* a;
            Mobilecardaddressbook c;
            a = &c;
            a->inquire();
        }
        else if (n == 0)
        {
            system("cls");//清屏
            break;
        }
    }
    return 0;
}
int user::deletecontact()//用姓名作为删除依据可能会出现重名的现象，所以这里采用以电话为删除依据
{
    while (n <= 10)
    {
        cout << "                     ********************************" << endl;
        cout << "                     *          删除联系人          *" << endl;
        cout << "                     ********************************" << endl;
        cout << "                     *     删除手机中的联系人：1    *" << endl;
        cout << "                     *    删除手机卡中的联系人: 2   *" << endl;
        cout << "                     *    一键删除所有的联系人: 3   *" << endl;
        cout << "                     *         退出删除界面：0      *" << endl;
        cout << "                     ********************************" << endl;
        int n;
        cin >> n;
        if (n == 1)
        {
            addressbook* a;
            Mobileaddressbook b;
            a = &b;
            a->deletecontacter();
        }
        else if (n == 2)
        {
            addressbook* a;
            Mobilecardaddressbook c;
            a = &c;
            a->deletecontacter();
        }
        else if (n == 3)
        {
            fstream infile("Mobile contact.txt", ios::out);
            if (!infile)
            {
                cout << "打开手机内存文件失败!" << endl;
            }
            else {
                infile << "";
            }
            fstream infile2("Mobilecard contact.txt", ios::out);
            if (!infile)
            {
                cout << "打开手机内存文件失败!" << endl;
            }
            else {
                infile << "";
            }
            cout << "全部删除成功!" << endl;
            infile.close();
            infile2.close();
        }
        else if (n == 0)
        {
            system("cls");//清屏
            break;
        }
    }
    return 0;
}
int user::showallcontacter()
{
    while (n <= 10)
    {
        cout << "                     ********************************" << endl;
        cout << "                     *          显示联系人          *" << endl;
        cout << "                     ********************************" << endl;
        cout << "                     *     显示手机中的联系人：1    *" << endl;
        cout << "                     *    显示手机卡中的联系人: 2   *" << endl;
        cout << "                     *         退出显示界面：0      *" << endl;
        cout << "                     ********************************" << endl;
        int n; cin >> n;
        if (n == 1)
        {
            addressbook* a;
            Mobileaddressbook b;
            a = &b;
            a->showallcontacter();
        }
        if (n == 2)
        {
            addressbook* a;
            Mobilecardaddressbook c;
            a = &c;
            a->showallcontacter();
        }
        if (n == 0)
        {
            system("cls");//清屏
            break;
        }
    }
    return 0;
}
int user::unloading()
{
    while (n <= 10)
    {
        cout << "                     ********************************" << endl;
        cout << "                     *          转存联系人          *" << endl;
        cout << "                     ********************************" << endl;
        cout << "                     *     转存手机中的联系人：1    *" << endl;
        cout << "                     *    转存手机卡中的联系人: 2   *" << endl;
        cout << "                     *         退出转存界面：0      *" << endl;
        cout << "                     ********************************" << endl;
        int n; cin >> n;
        if (n == 1)
        {
            addressbook* a;
            Mobileaddressbook b;
            a = &b;
            a->unloading();
        }
        else if (n == 2)
        {
            addressbook* a;
            Mobilecardaddressbook c;
            a = &c;
            a->unloading();
        }
        else if (n == 0)
        {
            system("cls");//清屏
            break;
        }
    }
    return 0;
}
/*
7．界面菜单类：用来给出操作提示
        数据成员：可以不定义数据成员
        成员函数：
        Display函数：显示操作菜单的提示。
        说明：可以根据需要定义多个函数，显示不同的菜单（操作提示）。
*/
class menu
{
public:
    menu() {
        cout << "                     ********************************" << endl;
        cout << "                     *  欢迎使用小岳通讯录管理系统  *" << endl;
        cout << "                     ********************************" << endl;
    }
    ~menu() {
        /*
        cout << "                     ********************************" << endl;
        cout << "                     *  成功离开通讯录管理系统菜单  *" << endl;
        cout << "                     ********************************" << endl;
        */
    }
    int display();
};
int menu::display()
{
    int n;
    cout << "                     *    请输入数字选择相应功能    *" << endl;
    cout << "                     ********************************" << endl;
    cout << "                     *       新建一个联系人：1      *" << endl;
    cout << "                     *       查询一个联系人：2      *" << endl;
    cout << "                     *       删除一个联系人：3      *" << endl;
    cout << "                     *       修改一个联系人：4      *" << endl;
    cout << "                     *       显示所有联系人：5      *" << endl;
    cout << "                     *         转存联系人：6        *" << endl;
    cout << "                     *          退出系统: 0         *" << endl;
    cout << "                     ********************************" << endl;
    cin >> n;
    return n;
}
int main()
{
    int a = 1;
    while (a < 10)
    {
        menu A;
        a = A.display();
        if (a == 0)break;
        user B(a);
    }
}