33 lines
557 B
C++
33 lines
557 B
C++
// 在下面基类Base和派生类Derived中增加成员函数show，使得程序运行结果如下：
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// Base
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// Derived
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#include <iostream>
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using namespace std;
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class Base {
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public:
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// _________________________;
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virtual void show() {
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cout << "Base" << endl;
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}
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};
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class Derived : public Base {
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public:
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// __________________________;
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virtual void show() {
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cout << "Derived" << endl;
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}
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};
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int main() {
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Base b, *ptr;
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Derived d;
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ptr = &b;
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ptr->show();
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ptr = &d;
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ptr->show();
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return 0;
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}; |