c++运算符重载习题

Task8-1

/*

1. 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

*/

#include

using namespace std;

class Complex

{

public:

Complex(){real=0;imag=0;}

Complex(double r,double i){real=r;imag=i;}

void display();

double real;

double imag;

};

void Complex::display()

{

cout<<"("<

}

Complex operator +(Complex &c1,Complex & c2) { Complex p;

p.real=c1.real+c2.real;

p.imag=c1.imag+c2.imag; return p;

}

int mai n()

{

Complex c1(3,5),c2(2,5),c3;

c1.display();

coutvv"+";

c2.display();

cout<<"=";

c3=c1+c2;

c3.display();

Task8-2

/*2. 定义一个复数类 Complex ，重载运算符“ + ”、”- “、” *”、” / ”，使之能用于复数的加、减、乘、除。运算符重载函数作为 Complex 类的成员函数，编程，分别求两个复数之和差积商。

*/

#include

using namespace std;

class Complex

{public:

Complex(){real=0;imag=0;}

Complex(double r,double i){real=r;imag=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::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;

c.imag=imag*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=(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.imag*c2.imag); return c; }

void Complex::display()

{cout<<"("<

}

int main()

{Complex c1(3,4),c2(5,-10),c3;

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;

}

3.

有两个矩阵a 和b ，均为

n 行m 列（m 、n 的值自己给出）

求两个矩阵之和、差、积、商, 重载运算符“ + ”、”

使之能用于矩阵向

c=a*b 。

class Matrix

可第习窗呂童作业如5岭-Nexi

Task8-3

/*

*/

#in elude viostream> #defi ne n 2 #defi ne m 3

using n amespace std;

//定义Matrix 类

{public: Matrix();

//默认构造函数 frie nd Matrix operato 叶(Matrix &M atrix &);

//重载运算符“ + ”

friend Matrix operator-(Matrix &,Matrix &); friend Matrix

operator*(Matrix &,Matrix &);