41 lines
755 B
C++
41 lines
755 B
C++
// 创建一个基类 Person，其中包含一个纯虚函数 display() ，用于显示人的信息。从 Person 派生出 Student 类和 Teacher 类，分别实现不同类型人的信息显示。
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#include <iostream>
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#include <cstring>
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#include <cstdlib>
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using namespace std;
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class Person
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{
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public:
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virtual void display() = 0;
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};
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class Student : public Person
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{
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public:
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// 子类的 virtual 函数可以不写 virtual 关键字
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virtual void display()
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{
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cout << "Student" << endl;
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}
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};
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class Teacher : public Person
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{
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public:
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virtual void display()
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{
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cout << "Teacher" << endl;
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}
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};
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int main()
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{
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Person *p = new Student();
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p->display();
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p = new Teacher();
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p->display();
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return 0;
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}
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