c_6_1.cpp

C++应用教程原码,里面包含该书中有十三章内容的代码,详细具体

#include "stdafx.h"
#include <iostream>
#include <string>
using namespace std;

class complex{

	float a,b;
public:
	complex(float x=0.0,float y=0.0) {a=x;b=y;}
	void Add(complex& number1,complex& number2);
	void Sub(complex& number1,complex& number2);
	void Mul(complex& number1,complex& number2);
	void Div(complex& number1,complex& number2);
	void display()
	{
		if(b>0)
			cout<<a<<"+"<<b<<"i"<<endl;
		else
			cout<<a<<"-"<<-b<<"i"<<endl;
	}
};
void complex::Add(complex& number1,complex& number2)
{
	a=number1.a+number2.a;
	b=number1.b+number2.b;
	cout<<"s1 + s2 = ";
}
void complex::Sub(complex& number1,complex& number2)
{
	a=number1.a-number2.a;
	b=number1.b-number2.b;
	cout<<"s1 - s2 = ";
}
void complex::Mul(complex& number1,complex& number2)
{
	a=number1.a*number2.a-number1.b*number2.b;
	b=number1.a*number2.b+number1.b*number2.a;
	cout<<"s1 * s2 = ";
}
void complex::Div(complex& number1,complex& number2)
{
	if((number2.a*number2.a+number2.b*number2.b)!=0)
	{
	    a=(number1.a*number2.a+number1.b*number2.b)/(number2.a*number2.a+number2.b*number2.b);
	    b=(number1.b*number2.a-number1.a*number2.b)/(number2.a*number2.a+number2.b*number2.b);
    	cout<<"s1 / s2 = ";
  	}
	else
		cout<<"除数为零，不能相除！";
}

void main()
{
	complex s1(3.4,2.1),s2(6.8,4.6),s3,s4,s5,s6;
	cout<<"复数s1: ";
	s1.display();
	cout<<"复数s2: ";
	s2.display();
	s3.Add(s1,s2);
	s3.display();
	s4.Sub(s1,s2);
	s4.display();
	s5.Mul(s1,s2);
	s5.display();
	s6.Div(s1,s2);
	s6.display();
	cout<<endl;
	cin.get(); //等待结束，以便调测程序，可以删除
}