1.xinpian.h
#include<iostream>
using namespace std;
class xinpian{
public:
xinpian(float M,float N);
void jia();
private:
int m,n;
};
class xinpianA:public xinpian{
public:
xinpianA(float M,float N);
void jian();
private:
int m,n;
};
class xinpianB:public xinpian{
public:
xinpianB(float M,float N);
void chen();
private:
int m,n;
};
class xinpianC:public xinpian{
public:
xinpianC(float M,float N);
void chu();
private:
int m,n;
};
xinpian.cpp
#include<iostream>
#include"xinpian.h"
using namespace std;
xinpian::xinpian(int m0,int n0):m(m0),n(n0){
};
void xinpian::jia(){
cout<<m+n<<endl;
};
xinpianA::xinpianA(int m0,int n0):xinpian(m0,n0),m(m0),n(n0){
};
void xinpianA::jian(){
cout<<m-n<<endl;
};
xinpianB::xinpianB(int m0,int n0):xinpian(m0,n0),m(m0),n(n0){
};
void xinpianB::chen(){
cout<<m*n<<endl;
};
xinpianC::xinpianC(int m0,int n0):xinpian(m0,n0),m(m0),n(n0){
};
void xinpianC::chu(){
cout<<m/n<<endl;
}
main.cpp
#include"xinpian.h"
#include<iostream>
using namespace std;
int main()
{
xinpianA A(5,2);
A.jia();
A.jian();
xinpianB B(6,3);
B.jia();
B.chen();
xinpianC C(7,4);
C.jia();
C.chu();
return 0;
}
2.vehicle.h
#include<iostream>
using namespace std;
class vehicle{
public:
vehicle(int m,int n);
void run();
void stop();
~vehicle(){}
private:
int maxspeed,weight;
};
class bicycle:virtual public vehicle{
public:
bicycle(int m,int n,float s);
~bicycle(){}
private:
float height;
};
class motorcar:virtual public vehicle{
public:
motorcar(int m,int n,int t);
~motorcar(){}
private:
int seatnum;
};
class motorcycle:public bicycle,public motorcar{
public:
motorcycle(int m,int n,float s,int t);
~motorcycle(){}
};
vehicle.cpp
#include"vehicle.h"
#include<iostream>
using namespace std;
vehicle::vehicle(int m,int n):maxspeed(m),weight(n){
cout<<"maxspeed"<<maxspeed<<endl;
cout<<"weight"<<weight<<endl;
}
void vehicle::run(){
cout<<"run"<<endl;
}
void vehicle::stop(){
cout<<"stop"<<endl;
}
bicycle::bicycle(int m,int n,float s):vehicle(m,n),height(s){
cout<<"height"<<height<<endl;
}
motorcar::motorcar(int m,int n,int t):vehicle(m,n),seatnum(t){
cout<<"seatnum"<<seatnum<<endl;
}
motorcycle::motorcycle(int m,int n,float s,int t):vehicle(m,n),bicycle(m,n,s),motorcar(m,n,t){}
#include <iostream>
#include"vehicle.h"
using namespace std;
int main() {
motorcycle A(1,2,3,4);
A.run();
A.stop();
return 0;
}
3，Fraction
//fraction.h
#include<iostream>
using namespace std;
class Fraction{
public:
Fraction();
Fraction(int a ,int b);
Fraction(int a);
Fraction operator +(const Fraction &c2)const;
Fraction operator -(const Fraction &c2)const;
Fraction operator *(const Fraction &c2)const;
Fraction operator /(const Fraction &c2)const;
friend ostream & operator<<(ostream &out, const Fraction &c);
void get();
private:
int top;
int bottom;
};
class iFraction:public Fraction{
public:
iFraction(int x,int y);
void show();
int top1;
int bottom1;
friend void convertF(const iFraction &c);
};
fraction.cpp
#include"fraction.h"
#include<iostream>
using namespace std;
Fraction::Fraction() :top(0), bottom(1) {
}
Fraction::Fraction(int a) : top(1), bottom(a) {
}
Fraction::Fraction(int a, int b) : top(a), bottom(b) {
}
Fraction Fraction::operator +(const Fraction &c2)const{
return Fraction(top*c2.bottom+bottom*c2.top,bottom*c2.bottom);
}
Fraction Fraction::operator -(const Fraction &c2)const{
return Fraction(top*c2.bottom-bottom*c2.top,bottom*c2.bottom);
}
Fraction Fraction::operator *(const Fraction &c2)const{
return Fraction(top*c2.top,bottom*c2.bottom);
}
Fraction Fraction::operator /(const Fraction &c2)const{
return Fraction(top*c2.bottom,bottom*c2.top);
}
ostream & operator<<(ostream &out, const Fraction &c){
if(c.top==0)
out<<"0";
else
out<<c.top<<"/"<<c.bottom;
return out;
}
void Fraction::get(){
int x,y;
cout<<"get the top and bottom"<<endl;
cin>>x>>y;
top=x;
bottom=y;
}
iFraction::iFraction(int x,int y):Fraction(x,y),top1(x),bottom1(y){
}
void iFraction::show(){
cout<<top1<<"/"<<bottom1<<endl;
}
void convertF(const iFraction &c){
if(c.top1==c.bottom1)
cout<<"1"<<endl;
if(c.top1>c.bottom1)
{
int m,n;
m=c.top1/c.bottom1;
n=c.top1%c.bottom1;
cout<<"("<<m<<")"<<n<<"/"<<c.bottom1<<endl;
}
}
main.cpp
#include"fraction.h"
#include<iostream>
using namespace std;
int main()
{
Fraction a;
Fraction b(5);
Fraction c(2,3);
iFraction d(4,5);
iFraction e(7,3);
cout<<a<<" "<<b<<" "<<c<<" "<<d<<endl;
d.get();
cout<<d<<endl;
d.show();
c=a+b;
cout<<c<<endl;
c=a-b;
cout<<c<<endl;
c=b*d;
cout<<c<<endl;
c=b/d;
cout<<c<<endl;
convertF(e);
return 0;
}
原文：https://www.cnblogs.com/wudigongben/p/9152926.html