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

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) { return s<<'('<<z.real()<<','<<z.image()<<')'; } int main() { Complex x(1,2),y(2,3); tout<<(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 { double 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) { return s<<'('<<z.real()<<','<<z.image()<<')'; } int main() { Complex x(1,2),y(2,3); tout<<(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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