第十五周oj刷题——Problem K: C++习题 复数类--重载运算符+,-,*,/

标签：c++   iostream   class   对象   类   

Description

Input

Output

Sample Input

3 4
5 -10

Sample Output

c1+c2=(8.00,-6.00i)
c1-c2=(-2.00,14.00i)
c1*c2=(55.00,-10.00i)
c1/c2=(-0.20,0.40i)

/* All rights reserved.
 * 文件名称：test.cpp
 * 作者：陈丹妮
 * 完成日期：2015年 6 月 23 日
 * 版 本 号：v1.0
 */
#include <iostream>
#include <iomanip>
using namespace std;
class Complex
{
public:
    Complex();
    Complex(double r,double 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(){}
Complex::Complex(double r,double i)
{
    real=r;
    imag=i;
}
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-imag*c2.imag;
    c.imag=imag*c2.real+real*c2.imag;
    return c;
}
Complex Complex:: operator/(Complex &c2)
{
    Complex c;
    c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag);
    c.imag=(-real*c2.imag+imag*c2.real)/(c2.real*c2.real+c2.imag*c2.imag);
    return c;
}
void Complex::display()
{
    cout<<"("<<real<<","<<imag<<"i)"<<endl;
}

int main()
{
    double real,imag;
    cin>>real>>imag;
    Complex c1(real,imag);
    cin>>real>>imag;
    Complex c2(real,imag);
    cout<<setiosflags(ios::fixed);
    cout<<setprecision(2);
    Complex c3=c1+c2;
    cout<<"c1+c2=";
    c3.display();
    c3=c1-c2;
    cout<<"c1-c2=";
    c3.display();
    c3=c1*c2;
    cout<<"c1*c2=";
    c3.display();
    c3=c1/c2;
    cout<<"c1/c2=";
    c3.display();
    return 0;
}
<img src="http://img.blog.csdn.net/20150623114826588?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQvbnVmYW5nZG9uZ2Rl/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center" alt="" />
 
学习心得：一定要注意小的细节，域符号一定要放在正确的地方，下次不要在错了，先是类型 类：：函数。继续努力！！！
 

第十五周oj刷题——Problem K: C++习题 复数类--重载运算符+,-,*,/

标签：c++   iostream   class   对象   类   

原文地址：http://blog.csdn.net/nufangdongde/article/details/46604189