没看见重载输入输出流的要求，结果尴尬了。。。
修改后代码如下：
#include <iostream>
#include <iomanip>
using namespace std;
class fushu
{
public:
fushu(){real=0,imag=0;}
fushu(double r,double i){real=r,imag=i;}
friend fushu operator +(fushu c1,fushu c2);
friend fushu operator -(fushu c1,fushu c2);
friend fushu operator *(fushu c1,fushu c2);
friend fushu operator /(fushu c1,fushu c2);
friend istream& operator >>(istream&,fushu&);
friend ostream& operator <<(ostream&,fushu&);
void jisuan();
private:
double real;
double imag;
};
fushu operator +(fushu c1,fushu c2)
{
return fushu(c1.real+c2.real,c1.imag+c2.imag);
}
fushu operator -(fushu c1,fushu c2)
{
return fushu(c1.real-c2.real,c1.imag-c2.imag);
}
fushu operator *(fushu c1,fushu c2)
{
return fushu(c1.real*c2.real-c1.imag*c2.imag,c1.imag*c2.real+c1.real*c2.imag);
}
fushu operator /(fushu c1,fushu c2)
{
return fushu((c1.real*c2.real+c1.imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag),(c1.imag*c2.real-c1.real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag));
}
istream& operator >>(istream& input,fushu&c)
{
input>>c.real>>c.imag;
return input;
}
ostream& operator <<(ostream& output,fushu&c)
{
output<<"("<<c.real<<","<<c.imag<<"i)"<<endl;
return output;
}
void danzi1()
{
cout<<"请选择您的操作：";
cout<<endl<<endl;
cout<<" "<<"1 标准类型计算"<<endl;
cout<<" "<<"2 复数类型计算"<<endl;
cout<<" "<<"0 退出"<<endl;
cout<<"请选择按键 0-2:";
}
void danzi2()
{
cout<<endl<<endl;
cout<<"计算器选择菜单";
cout<<endl<<endl;
cout<<" "<<"1 加法"<<endl;
cout<<" "<<"2 减法"<<endl;
cout<<" "<<"3 乘法"<<endl;
cout<<" "<<"4 除法"<<endl;
cout<<" "<<"0 返回上级菜单"<<endl;
cout<<" "<<"5 退出系统"<<endl;
cout<<"请选择按键 0-5:";
}
void fushu::jisuan()
{
int m;
kaishi:{danzi1();cin>>m;}
if(m==1)
{
int n;
double x,y;
shuru1:{danzi2();cin>>n;}
if(n==1)
{
cout<<"请输入两个数"<<endl;
cin>>x>>y;
cout<<x+y<<endl;
goto shuru1;
}
else if(n==2)
{
cout<<"请输入两个数"<<endl;
cin>>x>>y;
cout<<x-y<<endl;
goto shuru1;
}
else if(n==3)
{
cout<<"请输入两个数"<<endl;
cin>>x>>y;
cout<<x*y<<endl;
goto shuru1;
}
else if(n==4)
{
cout<<"请输入两个数"<<endl;
cin>>x>>y;
cout<<x/y<<endl;
goto shuru1;
}
else if(n==0)
{
goto kaishi;
}
else if(n==5)
{
return ;
}
else
{
cout<<"输入错误请帅哥or靓女从新选择"<<endl;
goto shuru1;
}
}
else if(m==2)
{
int n;
fushu c1,c2,c3;
shuru2:{danzi2();cin>>n;}
if(n==1)
{
cout<<"请输入两个复数的实部和虚部"<<endl;
cin>>c1>>c2;
cout<<"c1="<<"("<<c1.real<<","<<c1.imag<<"i)"<<endl;
cout<<"c2="<<"("<<c2.real<<","<<c2.imag<<"i)"<<endl;
c3=c1+c2;
cout<<"c1+c2=";
cout<<c3;
goto shuru2;
}
else if(n==2)
{
cout<<"请输入两个复数的实部和虚部"<<endl;
cin>>c1>>c2;
cout<<"c1="<<"("<<c1.real<<","<<c1.imag<<"i)"<<endl;
cout<<"c2="<<"("<<c2.real<<","<<c2.imag<<"i)"<<endl;
c3=c1-c2;
cout<<"c1-c2=";
cout<<c3;
goto shuru2;
}
else if(n==3)
{
cout<<"请输入两个复数的实部和虚部"<<endl;
cin>>c1>>c2;
cout<<"c1="<<"("<<c1.real<<","<<c1.imag<<"i)"<<endl;
cout<<"c2="<<"("<<c2.real<<","<<c2.imag<<"i)"<<endl;
c3=c1*c2;
cout<<"c1*c2=";
cout<<c3;
goto shuru2;
}
else if(n==4)
{
cout<<"请输入两个复数的实部和虚部"<<endl;
cin>>c1>>c2;
cout<<"c1="<<"("<<c1.real<<","<<c1.imag<<"i)"<<endl;
cout<<"c2="<<"("<<c2.real<<","<<c2.imag<<"i)"<<endl;
c3=c1/c2;
cout<<"c1/c2=";
cout<<c3;
goto shuru2;
}
else if(n==0)
{
goto kaishi;
}
else if(n==5)
{
return ;
}
else
{
cout<<"输入错误请帅哥or靓女从新选择"<<endl;
goto shuru2;
}
}
else if(m==0)
{
return ;
}
else
{
cout<<"输入错误请帅哥or靓女从新选择"<<endl;
goto kaishi;
}
}
int main()
{
cout<<endl<<endl;
cout<<" $----------------------------------------$"<<endl;
cout<<" : :"<<endl;
cout<<" : **欢迎进入计算器加强版系统** :"<<endl;
cout<<" : ** zly制作必属精品 ** :"<<endl;
cout<<" : :"<<endl;
cout<<" @----------------------------------------@"<<endl;
fushu h;
h.jisuan();
}