实现分数类中的对象和整型数的四则运算。分数类中的对象可以和整型数进行四则运算，且运算符合交换律。例如：CFraction a(1,3),b; int i=2; 可以完成b=a+i;。同样，可以完成i+

/*
*Copyright (c) 2016,烟台大学计算机学院
*All rights reserved.
*文件名称：main.cpp
*作    者：郭辉
*完成时间：2016年6月1日
*版 本 号：v1.0
*
*问题描述：实现分数类中的对象和整型数的四则运算。分数类中的对象可以和整型数进行四则运算，且运算符合交换律。例如：CFraction a(1,3),b; int i=2; 可以完成b=a+i;。同样，可以完成i+a, 45+a, a*27, 5/a等各种运算
*输入描述：无。
*程序输出：分数。
*/
#include<iostream>
using namespace std;
class CFraction
{
private:
int nume;//fenzi
int deno;//fenmu
public:
CFraction(int a=0,int b=0);

void show();
CFraction operator+(double c);
CFraction operator-(double c);
CFraction operator*(double c);
CFraction operator/(double c);
bool  operator>(CFraction &c);
bool  operator<(CFraction &c);
bool operator==(CFraction &c);
bool  operator>=(CFraction &c);
bool  operator<=(CFraction &c);
bool  operator!=(CFraction &c);
};

bool  CFraction::operator>(CFraction &c)
{
int mu,zi1,zi2;
mu=deno*c.deno;
zi1=nume*c.deno;
zi2=c.nume*deno;
if(zi1>zi2)
return true;
else
return false;

}
bool CFraction::operator<(CFraction &c)
{
int mu,zi1,zi2;
mu=deno*c.deno;
zi1=nume*c.deno;
zi2=c.nume*deno;
if(zi1< zi2)
return true;
else
return false;

}
bool CFraction::operator==(CFraction &c)
{
int mu,zi1,zi2;
mu=deno*c.deno;
zi1=nume*c.deno;
zi2=c.nume*deno;
if(zi1==zi2)
return true;
else
return false;

}
bool  CFraction::operator<=(CFraction &c)
{
int mu,zi1,zi2;
mu=deno*c.deno;
zi1=nume*c.deno;
zi2=c.nume*deno;
if(zi1<=zi2)
return true;
else
return false;

}
bool  CFraction::operator>=(CFraction &c)
{
int mu,zi1,zi2;
mu=deno*c.deno;
zi1=nume*c.deno;
zi2=c.nume*deno;
if(zi1>=zi2)
return true;
else
return false;
}
bool  CFraction::operator!=(CFraction &c)
{
int mu,zi1,zi2;
mu=deno*c.deno;
zi1=nume*c.deno;
zi2=c.nume*deno;
if(zi1!=zi2)
return true;
else
return false;
}
CFraction::CFraction(int a,int b)
{
nume=a;
deno=b;
}
CFraction CFraction::operator+(double c)
{
int zi;

zi=nume+c*deno;
CFraction t(zi,deno);
return t;
}
CFraction CFraction::operator-(double c)
{
int zi;

zi=nume-c*deno;
CFraction t(zi,deno);
return t;
}
CFraction CFraction::operator*(double c)
{
int zi;

zi=nume*c;
CFraction t(zi,deno);
return t;
}
CFraction CFraction::operator/(double c)
{
int mu;

mu=deno*c;
CFraction t(nume,mu);
return t;
}
void CFraction::show()
{int t,m,r,n;
m=deno;
n=nume;
if(deno<nume)
{
t=m;
m=n;
n=t;
}

while(r=m%n)
{
m=n;
n=r;
}
deno=deno/n;
nume=nume/n;
cout<<nume<<"/"<<deno<<endl;

}
int main()
{
CFraction  c1(1,2),c2(2,3),c3;
c3=c1+2;
c3.show();
c3=c1-2;
c3.show();
c3=c1*2;
c3.show();
c3=c1/2;
c3.show();
if(c1>c2)
cout<<"c1>c2"<<endl;
if(c1<c2)
cout<<"c1<c2"<<endl;
if(c1==c2)
cout<<"c1==c2"<<endl;
if(c1>=c2)
cout<<"c1>=c2"<<endl;
if(c1<=c2)
cout<<"c1<=c2"<<endl;
if(c1!=c2)
cout<<"c1!=c2"<<endl;
return 0;
}