实例 C++ 异常 - 处理错误

#include <iostream>

using namespace std;

​

int main() {

  try {

    int age = 15;

    if (age >= 18) {

      cout << "Access granted - you are old enough.";

    } else {

      throw (age);

    }

  }

  catch (int myNum) {

    cout << "Access denied - You must be at least 18 years old.\n";

    cout << "Age is: " << myNum;  

  }

  return 0;

}

​