实验6

1

ABC.h

#include<iostream>
using namespace std;
class ADD {
public:
    void add(int m, int n);
private:
    int x, y, result;
};

class A :public ADD {
public:
    void reduce(int m, int n);
private:
    int x, y, result;
};

class B :public ADD {
public:
    void multiply(int m, int n);
private:
    int x, y, result;
};

class C :public A {
public:
    void division(int m, int n);
private:
    int x, y,result; double result1 = 0.0;
};

ABC.cpp

#include"ABC.h"
#include<iostream>
using namespace std;

void ADD::add(int m, int n) {
    x = m; y = n;
    result = x + y;
    cout << result << ", ";
}

void A::reduce(int m, int n) {
    x = m; y = n;
    result = x - y;
    cout << result;
}

void B::multiply(int m, int n) {
    x = m; y = n;
    result = x*y;
    cout << result;
}

void C::division(int m, int n) {
    double a = m; double b = n;
    result1 = a/b;
    cout << result1;
}

main.cpp

#include<iostream>
#include"ABC.h"
using namespace std;

int main() {
    int a = 0, b = 0;  char c;
    cout << "输入两个整数" << endl;
    cin >> a >> b;
    cout << "选择ABC：" << endl;
    cin >> c;
    if (c == 'A') {
        A ABC;
        ABC.add(a, b);
        ABC.reduce(a, b);
    }
    else if (c == 'B') {
        B ABC;
        ABC.add(a, b);
        ABC.multiply(a, b);
    }
    else if (c == 'C') {
        C ABC;
        ABC.add(a, b);
        ABC.division(a, b);
    }
    cin >> c;
    if (c == 'exit') {
        return 0;}
}

运行截图

2.

vehicle.h

#include<iostream>
using namespace std;

class vehicle {
public:
    vehicle(){}
    vehicle(int a, int b);
    ~vehicle(){}
    void run();
    void stop();
private:
    int maxspeed, weight;
};

class bicycle :virtual public vehicle {
public:
    bicycle(){}
    bicycle(int a, int b, int c);
    ~bicycle(){}
private:
    int height;
};

class motorcar :virtual public vehicle {
public:
    motorcar(){}
    motorcar(int a, int b, int d);
    ~motorcar(){}
private:
    int seatnum;
};

class motorcycle :public bicycle, public motorcar {
public:
    motorcycle(){}
    motorcycle(int a, int b, int c, int d);
    ~motorcycle(){}
};

vehicle.cpp

#include<iostream>
#include"vehicle.h"
using namespace std;

vehicle::vehicle(int a, int b) {
    maxspeed = a;    weight = b;
}
void vehicle::run() {
    cout << "run" << endl;
}
void vehicle::stop() {
    cout << "stop" << endl;
}
bicycle::bicycle(int a, int b, int c) {
    vehicle(a, b); height = c;
}
motorcar::motorcar(int a, int b, int d) {
    vehicle(a, b); seatnum = d;
}
motorcycle::motorcycle(int a, int b, int c, int d) {
    vehicle(a, b); bicycle(a, b, c); motorcar(a, b, d);
    cout << "maxspeed=" << a <<endl;
    cout<< "weight=" << b << endl;
    cout << "height=" << c << endl;
    cout << "seatnum=" << d << endl;
}

main.cpp

#include<iostream>
#include"vehicle.h"
using namespace std;

int main() {
    int x, y, z, r, end;
    cout << "输入maxspeed weight height seatnum:";
    cin >> x >> y >> z >> r;
    motorcycle go(x,y,z,r);
    go.run();
    go.stop();
    if (cin >> end);
    return 0;
}

运行截图

3.fraction.h

#ifndef FRACTION_H  //不加这2条会报错，所以百度了
#define FRACTION_H  //原理好像是防止头文件的重复包含和编译
class Fraction {
public:
    Fraction(int a = 0, int b = 1);
    void operator+ ( Fraction &p) ;
    void operator- ( Fraction &p) ;
    void operator* ( Fraction &p) ;
    void operator/ ( Fraction &p) ;
    void compare(Fraction &p);
    void reduction();
    void show();
private:
    int top;
    int bottom;
};
#endif //FRACTION_H

fraction.cpp

#include<iostream>
#include"fraction.h"
using namespace std;

Fraction::Fraction(int a, int b) :top(a), bottom(b) {
}
void Fraction::compare(Fraction &p) {
    if (p.top>top) {
        cout << "前者<后者" << endl;
    }
    else if (p.top <= top) {
        cout << "前者>=后者" << endl;
    }
}
void Fraction::reduction() {
    int a;
    if (top%bottom == 0) a = bottom;
    else if (bottom%top == 0) a = top;
    else
        for (int i = 1; i<(bottom / 2) && i<(top / 2); i++)
        {
            if (bottom%i == 0 && top%i == 0) a = i;
        }
    top /= a;
    bottom /= a;
}
void Fraction::show() {
    cout << "结果：" << top << "/" << bottom << endl;
}
void Fraction::operator+ (Fraction &p) {
    int b1 = bottom, b2 = p.bottom;
    top = top * b2;    bottom = bottom * b2;
    p.top = p.top*b1;    p.bottom = p.bottom*b1;
    top = top + p.top;
}
void Fraction::operator-(Fraction &p) {
    int b1 = bottom, b2 = p.bottom;
    top = top * b2;    bottom = bottom * b2;
    p.top = p.top*b1;    p.bottom = p.bottom*b1;
    top = top - p.top;
}
void Fraction::operator*(Fraction &p) {
    top = top * p.top;
    bottom = bottom * p.bottom;
}
void Fraction::operator/(Fraction &p) {
    top = top * p.bottom;
    bottom = bottom * p.top;
}

ifraction.h

#include"fraction.h"
class iFraction :public Fraction {
public:
    iFraction(int a = 0, int b = 1);
    void ishow();
private:
    int top, bottom, side=0;
};

ifraction.cpp

#include<iostream>
#include"ifraction.h"
using namespace std;

iFraction::iFraction(int a, int b) :top(a),bottom(b){
    while (top > bottom) {
        top = top - bottom;
        side = side + 1;
        }
}
void iFraction::ishow() {
    cout << side << " " << top << "/" << bottom << endl;
}

main.cpp

#include<iostream>
#include"fraction.h"
#include"ifraction.h"
using namespace std;

int main() {
    int m, n, x, y;
    cout << "分数1：";
    cin >> m >> n;
    Fraction a(m, n);
    a.show();
    cout << "分数2：";
    cin >> x >> y;
    Fraction b(x, y);
    b.show();
    a.compare(b);
    char input;
    cout << "输入+ - * /:";
    cin >> input;
    switch (input) {
    case '+': a + b; break;
    case '-'    : a - b; break;
    case '*'    : a * b; break;
    case '/'    : a / b; break;
    default    :return 0;
    }
    a.reduction();
    a.show();
    iFraction i(5, 3);
    cout << "ifraction分数为：" << "5/3" << endl << " -> ";
    i.ishow();
    if (cin >> input);
    return 0;
}

运行截图