小型特殊计算器

一时失言乱红尘 2022-05-22 02:28 194阅读 0赞

要求：运算符重载

![20180613110122817][]![20180613110138221][]![20180613110148512][]

上代码

#include<iostream>
    using namespace std;
    class Complex
    {
    	public:
    		Complex(){real=0;imag=0;}
    		Complex(double r,double i){real=r;imag=i;}
    		Complex operator +(Complex &c2);//重载+ 
    	        Complex operator -(Complex &c2);//重载- 
    	        Complex operator *(Complex &c2);//重载*
    		Complex operator /(Complex &c2);//重载/ 
    		friend ostream &operator <<(ostream&,Complex&);//重载输出流 
    		friend istream &operator >>(istream&,Complex&);//重载输入流 
    	private:
    		double real;
    		double imag;
    		
    };
    Complex Complex::operator + (Complex &c2)//+ 
    {
    	return Complex(real+c2.real,imag+c2.imag);
     } 
     Complex Complex::operator - (Complex &c2)//- 
    {
    	return Complex(real-c2.real,imag-c2.imag);
     } 
     Complex Complex::operator *(Complex &c2)//*
    {
     	return Complex(real*c2.real-imag*c2.imag,imag*c2.real+real*c2.imag);
    }  
    Complex Complex::operator /(Complex &c2)// /
    {
    	return Complex((real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag),(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag));
     } 
    istream& operator>>(istream& input,Complex &c)//输入 
    {
    	input>>c.real>>c.imag;
    	return input;  
    }
     ostream & operator <<(ostream &output,Complex &c)//输出 
     {
     	cout<<"("<<c.real;
    	if(c.imag>=0)
    	cout<<"+";
    	cout<<c.imag<<"i)"<<endl;
    	return output; 
     }
     void welcome()//系统主菜单 
    {
       cout<<"                                 "<<endl;
       cout<<"       $-------------------------&"<<endl;
       cout<<"       !                         !"<<endl;
       cout<<"       !   **小型特殊计算器**     !"<<endl;
       cout<<"       !                         !"<<endl;
       cout<<"       $-------------------------&"<<endl;
       cout<<endl<<endl;
       cout<<"请选择您的操作（0-2）："<<endl;
       cout<<"        1.标准计算器"<<endl;
       cout<<"        2.复数计算器"<<endl; 
       cout<<"        0.退出"<<endl;
       cout<<"请输入编号（0-2）： ";
    }
     int main()
     {
     	cout<<"制作者：十七"<<endl; 
     	while(1)
     	{
    	    welcome();
     		int a;
     		cin>>a;
     		if(a==1)
     		{
          	double c1,c2,c3;
          	cout<<"请输入第一个数：";
    		cin>>c1;
    		cout<<"请输入第二个数："; 
    		cin>>c2;
    		cout<<"请输入运算法则：";
    		char m;
    		cin>>m;
    		if(m=='+') c3=c1+c2;
     	    if(m=='-') c3=c1-c2;
     	    if(m=='*') c3=c1*c2;
     	    if(m=='/') c3=c1/c2;
     	    cout<<"运算结果为："<<c3<<endl; 
    		 }
    		if(a==2)
    		{
    		Complex c1,c2,c3;
     	    cout<<"请输入第一个数：";
    		cin>>c1;
    		cout<<"请输入第二个数："; 
    		cin>>c2;
    		cout<<"请输入运算法则：";
    		char m;
    		cin>>m;
    		if(m=='+')  c3=c1+c2;
     	    if(m=='-')  c3=c1-c2;
     	    if(m=='*')  c3=c1*c2;
     	    if(m=='/')  c3=c1/c2;
     	    cout<<"运算结果为： "<<c3;
    		}
    		if(a==0)
    		return 0;
    	 }
     	
     	return 0;
     }

binggo![敲打][knock.gif]

[20180613110122817]: https://img-blog.csdn.net/20180613110122817
[20180613110138221]: https://img-blog.csdn.net/20180613110138221
[20180613110148512]: /images/20220522/0d59bd1263f24f3c89aff6ba3b02b0bc.png
[knock.gif]: https://static-blog.csdn.net/xheditor/xheditor_emot/default/knock.gif