h8.cpp

刮大风歌但范甘迪给对方 但范甘迪分给对方国的国的风格

#include"h8.h"


//public方法实现
Vector::Vector(double x_ ,double y_)
{
	x = x_;
	y = y_;
	direction = 0;
	length = 0;
}


Vector::Vector(const Vector& temp)
{
	x = temp.x;
	y = temp.y;
	length=temp.length;
	direction = temp.direction;
}


Vector::~Vector()
{

}


void Vector::set_length()
{
	length = sqrt(x*x+y*y);
}


void Vector::set_dirextion()
{
	direction = atan(y/x);
}


Vector Vector::operator+(const Vector& temp)const
{
	return Vector(x+temp.x,y+temp.y);
}


Vector Vector::operator-(const Vector& temp)const
{
	return Vector(x-temp.x,y-temp.y);
}


Vector Vector::operator*(const Vector& temp)const
{
	return Vector(x*temp.x,y*temp.y);
}


Vector& Vector::operator=(const Vector& temp)
{
	x=temp.x;
	y=temp.y;
}


Vector& Vector::operator--()
{
	x--;
	y--;
	return *this;
}


Vector& Vector::operator++()
{
	x++;
	y++;
	return *this;
	
}


Vector Vector::operator++(int)
{
	Vector temp(x,y);
	x++;
	y++;
	return temp;
}


Vector Vector::operator--(int)
{
	Vector temp(x,y);
	x--;
	y--;
	return temp;
}


double operator*(double i,Vector& temp)
{
	return i*temp.x;
}


ostream& operator<<(ostream& out,Vector& temp)
{
	out<<"Vector:"<<"("<<temp.x<<','<<temp.y<<")"<<endl;
	temp.set_length();
	temp.set_dirextion();
	out<<"Length:"<<temp.length<<".\n"<<"Direction:"<<temp.direction<<".\n";
}