Quản lý nhân sự, Hướng đối tượng C++

HuanBuiThanh

 



# include <iostream> 

# include <fstream>

# include <iomanip>

using namespace std;


class NHANSU

{

protected:


    char mans[10];

    char hoten[25];

    int  tuoi;

   

public:

    void NHAP();

};

class BIENCHE : public NHANSU

{

protected:

    int nambc;

    float heso;

public:

    void NHAP_BC();

    void INRA_BC();

    void SUA_BC();


};


class HOPDONG : public NHANSU

{

protected:

    int namhd;

    float luong;

public:

    void NHAP_HD();

    void INRA_HD();

    void SUA_HD();


private:


};


void NHANSU::NHAP()

{

    cout << "Ma Nhan Su : "; cin.getline(mans, 10);

    cout << "Ho va Ten:   "; cin.getline(hoten, 25);

    cout << "Tuoi : "; cin >> tuoi; cin.ignore();

}

void BIENCHE::NHAP_BC()

{

    BIENCHE bc;

    fstream FW;

    char ok;

    FW.open("BIENCHE.DAT", ios::out);

    cout << "\n Nhap nhan su bien che: \n";

    while (1)

    {

        bc.NHAP();

        cout << "Nam vao BC : "; cin >> bc.nambc; cin.ignore();

        cout << "He so luong: "; cin >> bc.heso; cin.ignore();

        FW.write((char*)&bc, sizeof(bc));

        cout << "\n Tiep tuc (C/K) ?"; cin >> ok; cin.ignore();

        if (ok == 'k' || ok == 'K') break;


    }

    FW.close();

}

void BIENCHE::INRA_BC()

{

    BIENCHE bc;

    fstream FR;

    FR.open("BIENCHE.DAT", ios::in);

    if (FR.fail()) { cout << "\n Loi mo tep tin"; return; }

    cout << "\n Danh sach nhan su Bien Che \n";

    int TT = 1;

    while (FR.read((char*)&bc, sizeof(bc)))

    {

        cout << "\n" << setw(3) << TT << " ";

        cout << setw(10) << bc.mans << setw(25) << bc.hoten <<  setw(8) << bc.nambc

            << setw(7) << bc.heso;

        TT = TT + 1;

    }

    FR.close();

}

void BIENCHE::SUA_BC()

{

    BIENCHE bc;

    fstream FW;

    int n; char ok;

    cout << "\n Nhap ban ghi can sua:";

    cin >> n; cin.ignore();

        

    FW.open("BIENCHE.DAT", ios::in | ios::out);

    if (FW.fail()) { cout << " \n Loi mo tep "; return; }

    cout << "\n nhap du lieu sua lai:\n ";

        cout << "Ma nhan su: "; cin.getline(bc.mans, 10);

        cout << "Ho va ten : "; cin.getline(bc.hoten, 25);

        cout << "Tuoi:"; cin>>bc.tuoi; cin.ignore();

        cout << "Nam vao BC:"; cin >> bc.nambc; cin.ignore();

    cout << "He so luong: "; cin >> bc.heso; cin.ignore();

    cout << "\nNhap nua khong (C/K) ? ";


    cin >> ok; cin.ignore();


    FW.seekp((n - 1) * sizeof(bc)); //chuyen con tron den ban ghi thu n


    if (ok == 'c' || ok == 'C') FW.write((char*)&bc, sizeof(bc)); //ghi lai ban ghi


    FW.close();

   


}


void HOPDONG::NHAP_HD()


{

    HOPDONG hd;

    fstream FW;

    char ok;

    FW.open("HOPDONG.DAT", ios::out);

    cout << "\nNhap nhan su hop dong\n ";

    while (1)

    {

        hd.NHAP();

        cout << "Nam vao hop dong: "; cin >> hd.namhd; cin.ignore();


        cout << "Luong : "; cin >> hd.luong; cin.ignore();

        FW.write((char*)&hd, sizeof(hd));

        cout << "\nTiep tuc (C/K) ? ";

        cin >> ok; cin.ignore();

        if (ok == 'k' || ok == 'K') break;

    }

    FW.close();

}


void HOPDONG::INRA_HD()


{

    HOPDONG hd;

    fstream FR;

    FR.open("HOPDONG.DAT", ios::in);

    if (FR.fail()) { cout << "\n Loi mo tep tin"; return; }

    

        cout << "\n\t\tDANH SACH NHAN SU HOP DONG\n"; 

        int TT = 1;

        while (FR.read((char*)&hd, sizeof(hd)))

    {

    cout << "\n" << setw(3) << TT << " ";

    cout << setw(10) << hd.mans << setw(25) << hd.hoten

        << setw(5) << hd.tuoi << setw(8) << hd.namhd

        << setw(15) << hd.luong;

    TT = TT + 1;

    }

        FR.close();

 }


void HOPDONG::SUA_HD()

    {

        HOPDONG hd;

        fstream FW;

        int n; char ok;

        cout << "\nNhap so ban ghi can sua: ";

        cin >> n; cin.ignore();

        FW.open("HOPDONG.DAT", ios::in | ios::out);

        if (FW.fail()) { cout << "\nLoi mo tep"; return; }



        cout << "\nNhap du lieu sua lai:\n";

        cout << "\nMa nhan su: "; cin.getline(hd.mans, 10);

        cout << "Ho va ten   : "; cin.getline(hd.hoten, 25);

        cout << "Tuoi        : "; cin >> hd.tuoi; cin.ignore();

        cout << "Nam vao HD  : "; cin >> hd.namhd; cin.ignore();

        cout << "Luong       : "; cin >> hd.luong; cin.ignore();

        cout << "\nCo ghi lai khong ? (C/K) ";

        cin >> ok; cin.ignore();

        FW.seekg((n - 1) * sizeof(hd));

        if (ok == 'c' || ok == 'C')

            FW.write((char*)&hd, sizeof(hd));

        FW.close();

    }

int main()

{

    BIENCHE bc;

    bc.NHAP_BC();

    bc.INRA_BC();

    bc.SUA_BC();

    bc.INRA_BC();

    HOPDONG hd;

    hd.NHAP_HD();

    hd.INRA_HD();

    hd.SUA_HD();

    hd.INRA_HD();

    cin.ignore();

}

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