标签:code 技术分享 muti const void src inpu tom cti
1
#include<iostream> using namespace std; class chip{ protected: int m; int n; double result; public: chip(int a,int b,int c=0):m(a),n(b),result(c){} void addition(){ cout<<m<<"+"<<n<<"="; result=m+n; cout<<result<<endl; } }; class chipA:public chip{ public: chipA(int a,int b,int c=0):chip(a,b,c){} void subraction(){ cout<<m<<"-"<<n<<"="; result=m-n; cout<<result<<endl; } }; class chipB:public chip{ public: chipB(int a,int b,int c=0):chip(a,b,c){} void mutilp(){ cout<<m<<"*"<<n<<"="; result=m*n; cout<<result<<endl; } }; class chipC:public chip{ public: chipC(int a,int b,int c=0):chip(a,b,c){} void division(){ cout<<m<<"/"<<n<<"="; result=(double)m/(double)n; cout<<result<<endl; } }; int main(){ chipA chip1(1,2); chip1.addition(); chip1.subraction(); chipB chip2(3,4); chip2.mutilp(); chipC chip3(5,6); chip3.division(); return 0; }
2
#include<iostream> using namespace std; class vehicle{ protected: int maxspeed; int weight; public: vehicle(int a,int b):maxspeed(a),weight(b){ } void run(){ cout<<"run"<<endl; } void stop(){ cout<<"stop"<<endl; } ~vehicle(){} }; class bicycle:virtual public vehicle{ protected: int height; public: bicycle(int a,int b,int c):vehicle(a,b),height(c){} void run(){ cout<<"run"<<endl<<"height:"<<height<<endl; } void stop(){ cout<<"stop"<<endl; ~bicycle(){} }; class motorcar:virtual public vehicle{ protected: int seatnum; public: motorcar(int a,int b,int c):vehicle(a,b),seatnum(c){} void run(){ cout<<"run"<<endl<<"seatnum:"<<seatnum<<endl; } void stop(){ cout<<"stop"<<endl; ~motorcar(){} }; class motorcycle:public bicycle,public motorcar{ public: motorcycle(int a,int b,int c,int d):vehicle(a,b),bicycle(a,b,c),motorcar(a,b,d){} void run(){ cout<<"run"<<endl; cout<<"maxspeed:"<<maxspeed<<endl; cout<<"height:"<<height<<endl; cout<<"seatnum:"<<seatnum<<endl; } void stop(){ cout<<"stop"<<endl; ~motorcycle(){} }; int main(){ vehicle a(100,10); a.vehicle::run(); a.vehicle::stop(); bicycle b(100,10,10); b.bicycle::run(); b.bicycle::stop(); motorcar c(100,10,10); c.motorcar::run(); c.motorcar::stop(); motorcycle d(100,10,10,10); d.motorcycle::run(); d.motorcycle::stop return 0; }
运行失败。。不知道为什么
3
fraction.h
#ifndef FRACTION_H #define FRACTION_H class fraction { public: fraction(int a, int b); fraction(int a); fraction(); ~fraction(); fraction operator+(const fraction &f1); fraction operator-(const fraction &f1); fraction operator*(const fraction &f1); fraction operator/(const fraction &f1); void compare(fraction &f1); void input(); void output(); protected: int top; int bottom; }; #endif
fraction.cpp
#include"fraction.h" #include<iostream> #include<cmath> using namespace std; Fraction Fraction::operator+(const Fraction &f1){ return Fraction(top*f1.bottom+f1.top*bottom,f1.bottom*bottom); } Fraction Fraction::operator-(const Fraction &f1){ return Fraction(top*f1.bottom-f1.top*bottom,bottom*f1.bottom); } Fraction Fraction::operator*(const Fraction &f1){ return Fraction(top*f1.top,bottom*f1.bottom); } Fraction Fraction::operator/(const Fraction &f1){ return Fraction(top*f1.bottom,bottom*f1.top); } void Fraction::output(){ int t,x,y; if(abs(top)>abs(bottom)) t=abs(bottom); else t=abs(top); for(int i=1;i<t;i++){ if(top%i==0&&bottom%i==0){ top/=i; bottom/=i; i=1; } } if(bottom<0){ top*=-1; bottom*=-1; } cout<<top<<"/"<<bottom<<endl; }
后面不会了。。
标签:code 技术分享 muti const void src inpu tom cti
原文地址:https://www.cnblogs.com/artistqun/p/9138862.html