C++复数运算符重载(+与<<)

Description

定义一个复数类Complex,重载运算符“+”,使之能用于复数的加法运算与输出操作。
(1)参加运算的两个运算量可以都是类对象,也可以其中有一个是实数,顺序任意。例如,c1+c2,d+c1,c1+d均合法(设d为实数,c1,c2为复数)。
(2)输出的算数,在复数两端加上括号,实部和虚部均保留两位小数,如(8.23+2.00i)、(7.45-3.40i)、(-3.25+4.13i)等。
编写程序,分别求两个复数之和、整数和复数之和,并且输出。

请在下面的程序段基础上完成设计:
#include <iostream>
#include <iomanip>
using namespace std;

class Complex
{
public:
Complex():real(0),imag(0) {}
Complex(double r,double i):real(r),imag(i) {}
Complex operator+(Complex &);
Complex operator+(double &);
friend Complex operator+(double&,Complex &);
friend ostream& operator << (ostream& output, const Complex& c);
private:
double real;
double imag;
};

//将程序需要的其他成份写在下面,只提交begin到end部分的代码
//******************** begin ********************


//********************* end ********************
int main()
{
//测试复数加复数
double real,imag;
cin>>real>>imag;
Complex c1(real,imag);
cin>>real>>imag;
Complex c2(real,imag);
Complex c3=c1+c2;
cout<<"c1+c2=";
cout<<c3;

//测试复数加实数
double d;
cin>>real>>imag;
cin>>d;
c3=Complex(real,imag)+d;
cout<<"c1+d=";
cout<<c3;

//测试实数加复数
cin>>d;
cin>>real>>imag;
c1=Complex(real,imag);
c3=d+c1;
cout<<"d+c1=";
cout<<c3;

return 0;
}

 

Input

一个复数的实部和虚部,另一个复数的实部和虚部 
一个复数的实部和虚部,一个实数
一个实数,一个复数的实部和虚部

 

Output

两个复数之和、复数和实数之和,实数和复数之和。

 

Sample Input

3 4 5 -10
3 4 5
5 3 4

Sample Output

c1+c2=(8.00-6.00i)
c1+d=(8.00+4.00i)
d+c1=(8.00+4.00i)

HINT

只提交自己定义的函数部分,控制输出小数点后两位,用 setiosflags(ios::fixed);和setprecision(2);控制

 

 

 

C++复数运算符重载(+与<<)
 1 #include <iostream>
 2 #include <iomanip>
 3 using namespace std;
 4 
 5 class Complex
 6 {
 7 public:
 8 Complex():real(0),imag(0) {}
 9 Complex(double r,double i):real(r),imag(i) {}
10 Complex operator+(Complex &);
11 Complex operator+(double &);
12 friend Complex operator+(double&,Complex &);
13 friend ostream& operator << (ostream& output, const Complex& c);
14 private:
15 double real;
16 double imag;
17 };
18 
19 //将程序需要的其他成份写在下面,只提交begin到end部分的代码
20 //******************** begin ********************
21 Complex Complex::operator+(Complex &c1)
22 {return(Complex(real+c1.real,imag+c1.imag));}
23 Complex Complex::operator+(double &d1)
24 {return(Complex(real+d1,imag));}
25 Complex operator+(double&d1,Complex &c1)
26 {return(Complex(d1+c1.real,c1.imag));}
27 ostream& operator << (ostream& output, const Complex& c)
28 {
29     if(c.imag>0)
30     output<<setiosflags(ios::fixed)<<setprecision(2)<<"("<<c.real<<"+"<<c.imag<<"i)"<<endl;
31     else
32     output<<setiosflags(ios::fixed)<<setprecision(2)<<"("<<c.real<<c.imag<<"i)"<<endl;
33     return output;
34 }
35 
36 //********************* end ********************
37 int main()
38 {
39 //测试复数加复数
40 double real,imag;
41 cin>>real>>imag;
42 Complex c1(real,imag);
43 cin>>real>>imag;
44 Complex c2(real,imag);
45 Complex c3=c1+c2;
46 cout<<"c1+c2=";
47 cout<<c3;
48 
49 //测试复数加实数
50 double d;
51 cin>>real>>imag;
52 cin>>d;
53 c3=Complex(real,imag)+d;
54 cout<<"c1+d=";
55 cout<<c3;
56 
57 //测试实数加复数
58 cin>>d;
59 cin>>real>>imag;
60 c1=Complex(real,imag);
61 c3=d+c1;
62 cout<<"d+c1=";
63 cout<<c3;
64 
65 return 0;
66 }
C++复数运算符重载(+与<<)

 

C++复数运算符重载(+与<<),布布扣,bubuko.com

C++复数运算符重载(+与<<)

上一篇:多线程编程1


下一篇:创建Python程序2