#include

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using namespace std;

template

class Complex{

public:

Complex(T a, T b);

void setComplex(T a,T b);

friend Complex operator+(const Complex &c1, const Complex &c2){

//對于模板類的友員函數(shù)一定要寫在類內(nèi)?。?！不可以再類外實(shí)現(xiàn)

T p_w_picpath = c1.p_w_picpath + c2.p_w_picpath;

T real = c1.real + c2.real;

return Complex(real,p_w_picpath);

//這個必須按照這樣寫，不能加個對象！因?yàn)轭愋筒淮_定！

}

friend Complexoperator-(const Complex &c1, const Complex &c2){

T p_w_picpath = c1.p_w_picpath - c2.p_w_picpath;

T real = c1.real - c2.real;

return Complex(real,p_w_picpath);

}

friend Complex operator-(const Complex &c1){

return Complex (-c1.real, -c1.p_w_picpath);

}

void print()const;

private:

T real, p_w_picpath;

};

template

Complex::Complex(T a, T b){

setComplex(a, b);

}

template

void Complex::print()const{

cout << "real=" << real << "p_w_picpath=" << p_w_picpath << endl;

}

template

void Complex::setComplex(T a, T b){

real = a;

p_w_picpath = b;

}

int main(){

Complex a(2, 3);

Complex b(2, 4);

(a + b).print();

(a - b).print();

(-a).print();

system("pause");

return 0;

}