C++第五章 类与对象习题解答(3)

第五章 类与对象习题

complex complex::operator -(complex c){ //重载复数\ complex temp;

temp.real = real - c.real; temp.imag = imag - c.imag; return temp; }

complex complex::operator *(complex c){ //重载复数\ complex temp;

temp.real = real * c.real - imag * c.imag; temp.imag = real * c.imag + imag * c.real; return temp; }

complex complex::operator /(complex c){ //重载复数\ complex temp; double d;

d = (c.real*c.real + c.imag*c.imag);

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

complex complex::operator +=(complex c){ //重载复数\ real = real + c.real; imag = imag + c.imag; return *this; }

complex complex::operator -=(complex c){ //重载复数\ real = real - c.real; imag = imag - c.imag; return *this; }

complex complex::operator *=(complex c){ //重载复数\ complex temp;

temp.real = real * c.real - imag * c.imag; temp.imag = real * c.imag + imag * c.real; *this = temp; return *this; }

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第五章 类与对象习题

complex complex::operator /=(complex c){ //重载复数\ complex temp; double d;

d = (c.real*c.real + c.imag*c.imag);

temp.real = (real * c.real + imag * c.imag)/d; temp.imag = (c.real * imag - real * c.imag)/d; *this = temp; return *this; }

complex complex::operator ++(){ //重载复数前缀\ ++this->real;//完整表达形式 ++this->imag; return *this; }

complex complex::operator ++(int){ //重载复数后缀\ complex temp(real,imag); real++; imag++;

return temp; }

void complex::print(){ //显示复数 cout << real;

if(imag > 0) cout << \

if(imag != 0) cout << imag << \}

void main(){

complex A(30,40),B(15,30),C; //定义3个复数对象 cout<<\为:\ A.print();

C=A.operator++(1);//即A++ cout<<\后，C为：\ C.print(); cout<<\为：\ A.print();

C=A.operator++();//即++A cout<<\后，C为：\ C.print(); cout<<\为：\ A.print(); cout<<\为：\

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第五章 类与对象习题

B.print(); C=A+B;

cout<<\后，C为:\ C.print(); A+=B;

cout<<\后，A为: \ A.print(); C=A-B;

cout<<\后，C为:\ C.print(); A-=B;

cout<<\后，A为: \ A.print(); C=A*B;

cout<<\后，C为:\ C.print(); A*=B;

cout<<\后，A为: \ A.print(); C=A/B;

cout<<\后，C为:\ C.print(); A/=B;

cout<<\后，A为: \ A.print(); cout<

}

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