|
#2
xufan2016-11-12 19:42
 程序代码：#include <iostream> using namespace std; class Compelx { public: explicit Compelx(const double& a, const double& b) { this->r = a; this->i = b; } virtual ~Compelx(void) { } Compelx& operator+(const double& a) { this->r += a; return (*this); } Compelx& operator-(const double& a) { this->r -= a; return (*this); } Compelx& operator-(const Compelx& c) { this->r -= c.r; this->i -= c.i; return (*this); } Compelx& operator+(const Compelx& c) { this->r += c.r; this->i += c.i; return (*this); } friend std::ostream& operator<<(std::ostream& out, const Compelx& c) { out << "r = " << c.r << ", i = " << c.i; return out; } private: double r; double i; }; int main() { Compelx c1(5.6,4.5); Compelx c2(2.3,3.3); cout << c1 << endl; cout << c2 << endl; Compelx c3 = c1 + c2; cout << c3 << endl; Compelx c4 = c1 + 2; cout << c4 << endl; Compelx c5 = c1 - 2; cout << c5 << endl; return 0; } |
class Compelx
{
friend Complex operator+(double a);
friend Complex operator-(double a);
friend Complex operator-(const Complex &c);
double r;
double i;
public:
Complex(double a,double b) : r(a),i(b){}
Complex operator+(const Complex &c) const
{
return Complex(r+c.r,i+c.i);
}
Complex operator-(const Complex &c) const
{
return Complex(r-c.r,i-c.i);
}
Complex operator+(double a) const
{
return Complex(r+a,i);
}
Complex operator-(double a) const
{
return Complex(r-a,i);
}
};
Complex operator+(double a)
{
return Complex(a+r,i);
}
Complex operator-(double a)
{
return Complex(a-r,-i);
}
Complex operator-(const Complex &c)
{
return Complex(-c.r,-c.i);
}
int main()
{
Complex c1(5.6,4.5);
Complex c2(2.3,3.3);
Complex c1 + c2;
Complex c1 - c2;
double a = 2.3;
Complex c1 + a;
Complex c1 - a;
operator+(a,c1);
operator-(a,c2);
operator-();
}
