   #include<iostream> #include<string> using namespace std; class Student { public: Student(int n,string nam) { num=n; name=nam; } void display() { cout<<"num:"<<num<<endl; cout<<"name:"<<name<<endl; } protected: int num; string name; }; class Student1:public Student { public : Student1(int n,string nam,int a):Student(n,nam) { age=a; } void show() { display(); cout<<"age:"<<age<<endl; } private: int age; }; class Student2:public Student1 { public: Student2(int n,string nam,int a,int s):Student1(n,nam,a) { score=s; } void show_all() { show(); cout<<"score:"<<score<<endl; } private: int score; }; int main(){ Student2 stud(10010,"Li",17,89); stud.show_all(); return 0; } |
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來(lái)自： Ethan的博客 > 《云圖書(shū)館》
