c++第四章

谁借莪１个温暖的怀抱￠ 2022-08-08 05:16 245阅读 0赞

c++第四章

//第一小题  
\#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);  
 void display();  
private:  
    double real;  
 double imag;    
\};  
Complex Complex::operator + (Complex &c2)  
\{  
 Complex c;  
 c.real=real+c2.real;  
 c.imag=imag+c2.imag;  
 return c;  
\}  
void Complex::display()  
\{  
 cout << "(" << real << "," << imag << "i)" <<endl;  
\}  
int main()  
\{  
 Complex c1(1,2),c2(5,-8),c3;  
 c3=c1+c2;  
 cout << "c1=";c1.display();  
 cout << "c2=";c2.display();  
 cout <<"c1+c2=";c3.display();  
 return 0;  
\}  
  
![20150426090502731][]  
  
  
//第二小题  
  
  
\#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);  
 Complex operator - (Complex &c2);  
 Complex operator \* (Complex &c2);  
 Complex operator / (Complex &c2);  
 void display();  
private:  
    double real;  
 double imag;    
\};  
Complex Complex::operator + (Complex &c2)  
\{  
 Complex c;  
 c.real=real+c2.real;  
 c.imag=imag+c2.imag;  
 return c;  
\}  
Complex Complex::operator - (Complex &c2)  
\{  
 Complex c;  
 c.real=real-c2.real;  
 c.imag=imag-c2.imag;  
 return c;  
\}  
  
  
Complex Complex::operator \* (Complex &c2)  
\{  
 Complex c;  
 c.real=real\*c2.real;  
 c.imag=imag\*c2.imag;  
 return c;  
\}  
Complex Complex::operator / (Complex &c2)  
\{  
 Complex c;  
 c.real=real/c2.real;  
 c.imag=imag/c2.imag;  
 return c;  
\}  
  
  
void Complex::display()  
\{  
 cout << "(" << real << "," << imag << "i)" <<endl;  
\}  
int main()  
\{  
 Complex c1(1,2),c2(5,-8),c3,c4,c5,c6;  
 c3=c1+c2;  
 c4=c1-c2;  
 c5=c1\*c2;  
 c6=c1/c2;  
 cout << "c1=";c1.display();  
 cout << "c2=";c2.display();  
 cout <<"c1+c2=";c3.display();  
 cout <<"c1-c2=";c4.display();  
 cout <<"c1\*c2=";c5.display();  
 cout <<"c1/c2=";c6.display();  
 return 0;  
\}  
![20150426094014591][]  
  
//第三小题  
\#include <iostream>  
using namespace std;  
class Complex\{  
public:  
 Complex()\{real=0;imag=0;\}  
 Complex(double r,double i)\{real=r;imag=i;\}  
 operator double()\{return real;\}  
 Complex operator + (Complex &c2);  
 //Complex operator - (Complex &c2);  
 //Complex operator \* (Complex &c2);  
 //Complex operator / (Complex &c2);  
 void display();  
private:  
    double real;  
 double imag;    
\};  
Complex Complex::operator + (Complex &c2)  
\{  
 Complex c;  
 c.real=real+c2.real;  
 c.imag=imag+c2.imag;  
 return c;  
\}  
void Complex::display()  
\{  
 cout << "(" << real << "," << imag << "i)" <<endl;  
\}  
int main()  
\{  
 Complex c1(1,2),c2(5,-8),c3;//,c4,c5,c6;  
 /\*c3=c1+c2;  
 c4=c1-c2;  
 c5=c1\*c2;  
 c6=c1/c2;\*/  
 cout << "c1=";c1.display();  
 cout << "c2=";c2.display();  
 /\*cout <<"c1+c2=";c3.display();  
 cout <<"c1-c2=";c4.display();  
 cout <<"c1\*c2=";c5.display();  
 cout <<"c1/c2=";c6.display();  
 \*/  
 double d;  
 d=2.5+c1;  
 cout << "d=2.5+c1"<<endl;  
 cout << "d=" << d <<endl;  
 return 0;  
\}  
  
![20150426095038383][]  
  
  
  
  
   //第四小题和第五小题  
\#include<iostream>   
\#include<string>   
using namespace std;   
class jz;   
istream &operator >> (istream &is,jz &c);   
ostream &operator << (ostream &os,jz &c);   
class jz\{   
public:  
    jz()\{\};  
    friend jz operator + (const jz &a, const jz &b);   //friend   
    friend ostream &operator << (ostream &,jz &);   
    friend istream &operator >> (istream &,jz &);   
    jz(int a,int b,int c,int d,int e,int f)  \{d1=a;d2=b;d3=c;d4=d;d5=e;d6=f;\}   
private:  
 int d1,d2,d3,d4,d5,d6;  
\};   
ostream & operator << (ostream &output,jz &c)  
\{  
 output << c.d1 << " " << c.d2 <<" " << c.d3 <<endl;   
    cout << c.d4 << " " << c.d5 <<" " << c.d6 <<endl;   
    return output;  
\}  
istream & operator >> (istream &input,jz &c)   
\{   
    input>> c.d1 >> c.d2 >> c.d3 >> c.d4 >> c.d5 >> c.d6;   
    return input;   
\}   
jz operator + (const jz &a, const jz &b)   
\{   
    int a1=a.d1+b.d1;   
    int a2=a.d2+b.d2;   
    int a3=a.d3+b.d3;   
    int a4=a.d4+b.d4;   
    int a5=a.d5+b.d5;   
    int a6=a.d6+b.d6;   
    return jz(a1,a2,a3,a4,a5,a6);   
\}  
  
  
int main()  
\{  
 jz a,b,c;  
 cout << "Please input six number to jz1:"<< endl;  
    cin >> a;   
    cout << "Please input six number to jz2:"<< endl;  
    cin >> b;   
    c=a+b;   
    cout << "c=a+b" <<endl;  
    cout << c <<endl;  
    return 0;   
\}  
  
  
   
  
  
  
![20150426101222817][]

[20150426090502731]: /images/20220805/e528e43858354f63a8a72cc6e0160795.png
[20150426094014591]: /images/20220805/8599d79e32434bf48a29bbd1aeff9aad.png
[20150426095038383]: /images/20220805/78bb3f346c304a3b827b640005e1bd75.png
[20150426101222817]: /images/20220805/5696961347cd4adbaed9909297132963.png