题目内容
有如下程序:#include 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<<'('<
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