一：
#include<iostream>
using namespace std;
class basic
{
public:
basic(int a,int b):m(a),n(b){}
~basic(){}
void jia()
{
cout<<m+n<<endl;
}
private:
int m,n;
};
class A:public basic
{
public:
A(int a,int b):basic(a,b),m(a),n(b){}
~A(){}
void jian()
{
cout<<m-n<<endl;
}
private:
int m,n;
};
class B:public basic
{
public:
B(int a,int b):basic(a,b),m(a),n(b){}
~B(){}
void cheng()
{
cout<<m*n<<endl;
}
private:
int m,n;
};
class C:public basic
{
public:
C(int a,int b):basic(a,b),m(a),n(b){}
~C(){}
void chu()
{
cout<<m/n<<endl;
}
private:
int m,n;
};
int main()
{
int i,j;
cin>>i>>j;
A a(i,j);
B b(i,j);
C c(i,j);
a.jian();
b.cheng();
c.chu();
return 0;
}
二：
#include <iostream>
using namespace std;
class vehicle
{
public:
vehicle(int ,int );
~vehicle();
void run();
void stop();
private:
int maxspeed;
int weight;
};
vehicle::vehicle(int a,int b):maxspeed(a),weight(b)
{
cout<<"constructing vehicle"<<endl;
cout<<"maxspeed:"<<maxspeed<<endl;
cout<<"weight:"<<weight<<endl;
}
vehicle::~vehicle(){}
void vehicle::run()
{cout<<"run"<<endl;}
void vehicle::stop()
{cout<<"stop"<<endl;}
class bicycle:virtual public vehicle
{
public:
bicycle(int ,int ,int );
~bicycle();
private:
int height;
};
bicycle::bicycle(int a,int b,int c):vehicle(a,b),height(c)
{
cout<<"constructing bicycle"<<endl;
cout<<"height:"<<height<<endl;
}
bicycle::~bicycle(){}
class motorcar:virtual public vehicle
{
public:
motorcar(int ,int ,int );
~motorcar();
private:
int seatnum;
};
motorcar::motorcar(int a,int b,int c):vehicle(a,b),seatnum(c)
{
cout<<"constructing motorcar"<<endl;
cout<<"seat:"<<seatnum<<endl;
}
motorcar::~motorcar(){}
class motorcycle:public bicycle,public motorcar
{
public:
motorcycle(int ,int ,int ,int );
motorcycle();
~motorcycle();
};
motorcycle::motorcycle(int a,int b,int c,int d):vehicle(a,b),bicycle(a,b,c),motorcar(a,b,d){}
motorcycle::~motorcycle(){}
int main()
{
motorcycle car(100,100,2,4);
car.run();
car.stop();
return 0;
}
三：
#include "Fraction.h"
#include <iostream>
using namespace std;
Fraction::Fraction(int i,int j):top(i),bottom(j){}
Fraction::Fraction(int i):top(i)
{
bottom=1;
}
Fraction::Fraction()
{
top=0;
bottom=1;
}
Fraction::~Fraction(){}
Fraction Fraction::operator+(Fraction &b)
{
Fraction temp;
temp.top=top*b.bottom+b.top*bottom;
temp.bottom=bottom*b.bottom;
return temp;
}
Fraction Fraction::operator-(Fraction &b)
{
Fraction temp;
temp.top=top*b.bottom-b.top*bottom;
temp.bottom=bottom*b.bottom;
return temp;
}
Fraction Fraction::operator*(Fraction &b)
{
Fraction temp;
temp.top=top*b.top;
temp.bottom=bottom*b.bottom;
return temp;
}
Fraction Fraction::operator/(Fraction &b)
{
Fraction temp;
temp.top=top*b.bottom;
temp.bottom=bottom*b.top;
return temp;
}
void Fraction::divide(Fraction &a)
{
cout<<top*a.bottom<<"/"<< bottom * a.top << endl;
}
void Fraction::compare(Fraction &a)
{
if(top*a.bottom>bottom*a.top)
cout<<top<<"/"<<bottom<<endl;
else if(top*a.bottom<bottom*a.top)
cout<<a.top<<"/"<<a.bottom<<endl;
else if(top*a.bottom==bottom*a.top)
cout<<"一样大"<<endl;
}
void Fraction::input()
{
cin>>top>>bottom;
}
void Fraction::output()
{
cout<<top<<"/"<<bottom<<endl;
}
#ifndef Fraction_h
#define Fraction_h
class Fraction
{
public:
Fraction(int i,int j);
Fraction(int i);
Fraction();
~Fraction();
Fraction operator+(Fraction &b);
Fraction operator-(Fraction &b);
Fraction operator*(Fraction &b);
Fraction operator/(Fraction &b);
void divide(Fraction &a);
void compare(Fraction &a);
void input();
void output();
private:
int top;
int bottom;
};
#endif
#include"Fraction1.h"
class iFraction:public Fraction
{
public:
iFraction(int x=0,int y=1,int z=0):Fraction(x,y),zheng(z){}
void print();
friend iFraction convertF(iFraction &d);
private:
int zheng;
};
#include"iFraction.h"
#include<iostream>
#include<iomanip>
using namespace std;
void iFraction::print()
{
if(top==0)
cout<<setw(4)<<zheng<<endl;
else if(zheng==0)
{
cout<<setw(4)<<top<<endl;
cout<<setw(4)<<'-'<<endl;
cout<<setw(4)<<bottom<<endl;
}
else
{
cout<<setw(4)<<top<<endl;
cout<<setw(3)<<zheng<<'-'<<endl;
cout<<setw(4)<<bottom<<endl;
}
}
iFraction convertF(iFraction &d)
{
d.simplify();
d.zheng+=d.top/d.bottom;
d.top%=d.bottom;
return d;
}
#include <iostream>
#include "iFraction.h"
using namespace std;
int main()
{
Fraction a(-6,8);
Fraction b(5);
Fraction c;
cout<<"a=";
a.show();
cout<<"b=";
b.show();
cout<<"c=";
c.show();
c=a+b;
cout<<"c=a+b=";
c.show();
c=a-b;
cout<<"c=a-b=";
c.show();
c=a*b;
cout<<"c=a*b=";
c.show();
c=a/b;
cout<<"c=a/b=";
c.show();
iFraction d(9,6,5);
cout<<"d="<<endl;
d.print();
d=convertF(d);
cout<<"规范化处理"<<endl;
d.print();
return 0;
}
这是我操作时出现的问题，我也不知到这么解决，我点一下main就会自动新建一个main，然后我写了数据的那个删都删不掉。
五：
这次的实验还是比较简单比较少的（附加是什么？）
