43 lines
1010 B
C++
43 lines
1010 B
C++
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// 假设有三个类，Animal（动物），Mammal（哺乳动物）和 Dog（狗）。Animal 类具有一个成员函数 eat() ，用于输出动物吃的食物。Mammal 类继承自 Animal 类，并添加了一个成员函数 giveBirth() ，用于输出哺乳动物的生育方式。Dog 类继承自 Mammal 类，并添加了一个成员函数 bark() ，用于输出狗的叫声。请在给定的类定义中完成代码，并实现相应的成员函数。
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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 Animal
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{
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public:
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void eat()
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{
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cout << "Animal eat" << endl;
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}
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};
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class Mammal : public Animal
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{
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public:
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void giveBirth()
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{
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cout << "Mammal give birth" << endl;
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}
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};
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class Dog : public Mammal
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{
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public:
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void bark()
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{
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cout << "Dog bark" << endl;
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}
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};
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int main()
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{
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Dog dog;
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dog.eat(); // Animal eat
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dog.giveBirth(); // Mammal give birth
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dog.bark(); // Dog bark
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return 0;
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}
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