事先声明，我也很想用多文件写，但是！！我就不明白了，为什么我一用多文件我的电脑就会崩掉
造成不便请谅解
第一题
#include<iostream>
using namespace std;
class add{
public:
add(int m0,int n0):m(m0),n(n0){cout<<m+n<<endl;}
private:
int m,n;
};
class A: virtual public add{
public:
A(int m0,int n0):add(m0,n0),m1(m0),n1(n0){};
void sub()
{
cout<<m1-n1<<endl;
}
private:
int m1,n1;
};
class B: virtual public add{
public:
B(int m0,int n0):add(m0,n0),m2(m0),n2(n0){};
void mul()
{
cout<<m2*n2<<endl;
}
private:
int m2,n2;
};
class C :virtual public add{
public:
C(int m0,int n0):add(m0,n0),m3(m0),n3(n0){};
void div()
{
cout<<m3/n3<<endl;
}
private:
int m3,n3;
};
int main()
{ cout<<"芯片A"<<endl;
A a(2,1);
a.sub();
cout<<"芯片B"<<endl;
B b(2,1);
b.mul();
cout<<"芯片C"<<endl;
C c(2,1);
c.div();
return 0;
}
第二题
#include<iostream>
using namespace std;
class vehicle{
public:
vehicle(int m,int w):maxspeed(m),weight(w){};
void run()
{
cout<<"车已启动"<<endl;
};
void stop()
{
cout<<"车已停止"<<endl;
};
~vehicle(){};
protected:
int maxspeed,weight;
};
class bicycle:virtual public vehicle{
public:
bicycle(int m,int w,int h):vehicle(m,w),height(h){};
void run()
{
cout<<"自行车已启动"<<endl<<"Height:"<<height<<endl;
};
void stop()
{
cout<<"自行车已停止"<<endl;
};
~bicycle(){};
protected:
int height;
};
class motorcar:virtual public vehicle{
public:
motorcar(int m,int w,int s):vehicle(m,w),seatnum(s){};
void run()
{
cout<<"汽车已启动"<<endl<<"Seatnum:"<<seatnum<<endl;
};
void stop()
{
cout<<"汽车已停止"<<endl;
};
~motorcar(){};
protected:
int seatnum;
};
class motorcycle:public bicycle,public motorcar{
public:
motorcycle(int m,int w,int h,int s):vehicle(m,w),bicycle(m,w,h),motorcar(m,w,s){};
void run()
{
cout<<"摩托车已启动"<<endl;
cout<<"Maxspeed:"<<maxspeed<<endl;
cout<<"Height:"<<height<<endl;
cout<<"Seatnum:"<<seatnum<<endl;
}
void stop()
{
cout<<"摩托车已停止"<<endl;
};
~motorcycle(){};
};
int main()
{
vehicle a(120,50);
a.vehicle::run();
a.vehicle::stop();
bicycle b(50,50,2);
b.bicycle::run();
b.bicycle::stop();
motorcar c(120,80,5);
c.motorcar::run();
c.motorcar::stop();
motorcycle d(100,80,2,2);
d.motorcycle::run();
d.motorcycle::stop();
return 0;
}
第三题
#include<iostream>
#include<iomanip>
using namespace std;
class Fraction
{
public:
Fraction():top(0),bottom(1) {};
Fraction(int a,int b):top(a),bottom(b) {};
Fraction(int c):top(c),bottom(1){};
Fraction operator +(Fraction &p2)const;
Fraction operator -(Fraction &p2)const;
Fraction operator *(Fraction &p2)const;
Fraction operator /(Fraction &p2)const;
void display()
{
cout<<top<<"/"<<bottom<<endl;
};
~Fraction(){} ;
protected:
int top;
int bottom;
};
Fraction Fraction::operator +(Fraction &p2)const
{
return Fraction(top*p2.bottom+p2.top*bottom,bottom*p2.bottom);
}
Fraction Fraction::operator -(Fraction &p2)const
{
return Fraction(top*p2.bottom-p2.top*bottom,bottom*p2.bottom);
}
Fraction Fraction::operator *(Fraction &p2)const
{
return Fraction(top*p2.top,bottom*p2.bottom);
}
Fraction Fraction::operator /(Fraction &p2)const
{
return Fraction(top*p2.bottom,p2.top*bottom);
}
class iFraction:public Fraction{
public:
iFraction(int x,int y,int z):Fraction(x,y),inte(z){};
void print();
friend iFraction convertF(iFraction &p);
private:
int inte;
};
void iFraction::print()
{
{
if(top==0)
cout<<"0"<<endl;
else if(inte==0)
{
cout<<setw(2)<<top<<endl;
cout<<setw(2)<<'-'<<endl;
cout<<setw(2)<<bottom<<endl;
}
else
{
cout<<setw(2)<<top<<endl;
cout<<setw(1)<<inte<<'-'<<endl;
cout<<setw(2)<<bottom<<endl;
}
}
}
iFraction convertF(iFraction &p)
{
p.inte+=p.top/p.bottom;
p.top%=p.bottom;
return p;
}
int main()
{
Fraction p2;
Fraction b(3,4);
Fraction c(5,1);
b.display();
c.display();
cout<<"相加的结果是"<<endl;
p2= b+c;
p2.display();
cout<<"相减的结果是"<<endl;
p2=b-c;
p2.display();
cout<<"相乘的结果是"<<endl;
p2=b*c;
p2.display();
cout<<"相除的结果是"<<endl;
p2=b/c;
p2.display();
iFraction d(1,2,3);
d.print();
cout<<"规范化处理后"<<endl;
d=convertF(d);
d.print();
return 0;
}
