catch，try，throw

#include <iostream>
using namespace std;

class Except1 {};

class Except2 {
public:
  Except2(const Except1&) {}
};

void f() { throw Except1(); }

int main() {
  try { f();
  } catch(Except2&) {
    cout << "inside catch(Except2)" << endl;
  } catch(Except1&) {
    cout << "inside catch(Except1)" << endl;
  }
  getchar();
}