题目描述
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。将运算符函数重载为非成员、非友元的普通函数。编写程序，求两个复数之和。
输入
两个复数
输出
复数之和
样例输入
3 4
5 -10
样例输出
(8.00,-6.00i)
提示
前置代码及类型定义已给定如下，提交时不需要包含，会自动添加到程序前部
/* C++代码 */
#include <iostream>
#include <iomanip>
using namespace std;
class Complex
{
public:
Complex();
Complex(double r,double i);
double get_real();
double get_imag();
void display();
private:
double real;
double imag;
};
主函数已给定如下，提交时不需要包含，会自动添加到程序尾部
/* C++代码 */
int main()
{
double real,imag;
cin>>real>>imag;
Complex c1(real,imag);
cin>>real>>imag;
Complex c2(real,imag);
Complex c3=c1+c2;
cout<<setiosflags(ios::fixed);
cout<<setprecision(2);
c3.display();
return 0;
}
答案
#include <iostream>
#include <iomanip>
using namespace std;
class Complex
{
public:
Complex();
Complex(double r,double i);
double get_real();
double get_imag();
void display();
private:
double real;
double imag;
};
/
Complex::Complex(double r,double i){
real = r;
imag = i;
}
double Complex::get_real(){
return real;
}
double Complex::get_imag(){
return imag;
}
Complex operator + (Complex &c1, Complex &c2)
{
return Complex(c1.get_real()+c2.get_real(),c1.get_imag()+c2.get_imag());
}
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);
Complex c3=c1+c2;
cout<<setiosflags(ios::fixed);
cout<<setprecision(2);
c3.display();
return 0;
}
