c++模板

#include<iostream>using namespace std;template <typename T>struct Point {T x,y;Point(T x = 0,T y = 0):x(x),y(y) {}};template <typename T>Point<T> operator + (const Point<T>& A, const Point<T>& B) {return Point<T>(A.x+B.x,B.y+A.y);}template <typename T>ostream& operator << (ostream &out, const Point<T>& p) {out <<"("<<p.x<<","<<p.y<<")";return out;}int main() {Point<int> a(1,2), b(3,4);Point<double> c(1.1,2.2),d(3.3,4.4);cout << a+b << " "<<c+d<<"\n";return 0;}