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有如下程序: include using namespace std; class Complex { dou

有如下程序: #include<iostream> using namespace std; class Complex { double re, im; public: Complex(double r, double i): re(r), im(i) {} double real() const { return re; } double image() const { return im; } Complex& operator+= (Complex a) { re += a.re; im += a.im; return *this; } }; ostream& operator<<(ostream& s, const Complex& z) { remm s<<'('<<z.real()<<','<<z.image()<<')'; } int main() { Complex x(1,-2), y(2,3); cout<<(x+=y)<<endl; return 0; } 执行这个程序的输出结果是

A.(1,-2)

B.(2,3)

C.(3,5)

D.(3,1)


参考答案

更多 “ 有如下程序: include using namespace std; class Complex { dou 有如下程序: #include<iostream> using namespace std; class Complex { double re, im; public: Complex(double r, double i): re(r), im(i) {} double real() const { return re; } double image() const { return im; } Complex operator+= (Complex a) { re += a.re; im += a.im; return *this; } }; ostream operator<<(ostream s, const Complex z) { remm s<<'('<<z.real()<<','<<z.image()<<')'; } int main() { Complex x(1,-2), y(2,3); cout<<(x+=y)<<endl; return 0; } 执行这个程序的输出结果是A.(1,-2)B.(2,3)C.(3,5)D.(3,1) ” 相关考题
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