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basic_content/virtual/set3/full_virde.cpp
34 строки
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zhangxing
support bazel complie this project and format code.
30 мар 2024, 17:00
30 мар 2024, 17:00
3c8a3f2
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/** * @file full_virde.cpp * @brief 将基类的析构函数声明为虚函数 * 输出结果： * Constructing base * Constructing derived * Destructing derived * Destructing base * @author 光城 * @version v1 * @date 2019-07-24 */ #include <iostream> using namespace std; class base { public: base() { cout << "Constructing base \n"; } virtual ~base() { cout << "Destructing base \n"; } }; class derived : public base { public: derived() { cout << "Constructing derived \n"; } ~derived() { cout << "Destructing derived \n"; } }; int main(void) { derived *d = new derived(); base *b = d; delete b; return 0; }