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C++ 继承访问


访问说明符

您从 访问说明符 章节中了解到 C++ 中有三种说明符可用。到目前为止,我们只使用了 public(类成员可以从类外部访问)和 private(成员只能在类内部访问)。第三种说明符,protected,类似于 private,但它也可以在 **继承** 类中访问

示例

// 基类
class Employee {
  protected: // 保护访问说明符
    int salary;
};

// 派生类
class Programmer: public Employee {
  public
    int bonus;
    void setSalary(int s) {
      salary = s;
    }
    int getSalary() {
      return salary;
    }
};

int main() {
  Programmer myObj;
  myObj.setSalary(50000);
  myObj.bonus = 15000;
  cout << "Salary: " << myObj.getSalary() << "\n";
  cout << "Bonus: " << myObj.bonus << "\n";
  return 0;
}
自己试一下 »

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