C++程序设计第三版(谭浩强)第十章习题答案 .pdfVIP

C++程序设计第三版（谭浩强）第十章习题答案

10.1题

#include

usingnamespacestd;

classComplex

{public:

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

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

doubleget_real();

doubleget_imag();

voiddisplay();

private:

doublereal;

doubleimag;

};

doubleComplex::get_real()

{returnreal;}

doubleComplex::get_imag()

{returnimag;}

voidComplex::display()

{cout(real,imagi)endl;}

Complexoperator+(Complexc1,Complexc2)

{

return

Complex(c1.get_real()+c2.get_real(),c1.get_imag()+c2.ge

t_imag());

}

intmain()

{Complexc1(3,4),c2(5,-10),c3;

c3=c1+c2;

coutc3=;

c3.display();

return0;

}

10.2题

#include

usingnamespacestd;

classComplex

{public:

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

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

Complexoperator+(Complexc2);

Complexoperator-(Complexc2);

Complexoperator*(Complexc2);

Complexoperator/(Complexc2);

voiddisplay();

private:

doublereal;

doubleimag;

};

ComplexComplex::operator+(Complexc2)

{Complexc;

c.real=real+c2.real;

c.imag=imag+c2.imag;

returnc;}

ComplexComplex::operator-(Complexc2)

{Complexc;

c.real=real-c2.real;

c.imag=imag-c2.imag;

returnc;}

ComplexComplex::operator*(Complexc2)

{Complexc;

c.real=real*c2.real-imag*c2.imag;

c.imag=imag*c2.real+real*c2.imag;

returnc;}

ComplexComplex::operator/(Complexc2)

{Complexc;

c.real=(real*c2.real+imag*c2.imag)/(c2.real*c2.real+c2.i

mag*c2.imag);

c.imag=(imag*c2.real-real*c2.imag)/(c2.real*c2.real+c2.i

mag*c2.imag);

returnc;}

voidComplex::display()

{cout(real,imagi)endl;}

intmain()

{Complexc1(3,4),c2(5,-10),c3;

c3=c1+c2;

coutc1+c2=;

c3.display();

c3=c1-c2;

coutc1-c2=;

c3.display();

c3=c1*c2;

coutc1*c2=;

c3.display();

c3=c1/c2;

coutc1/c2=;

c3.display();

return0;

}

10.3题

#include//用VC++时改为∶#include

usingnamespacestd;//用VC++时为取消此行

classComplex

{public:

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

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

Complexoperator+(Complexc2);

Com