摘要：
C++代码：#include using namespace std;class A {public: A() { cout << "父类A构造函数被调用:" << endl; } virtual ~A() { ... 阅读全文
摘要：
C++代码：#include using namespace std;class A {public: A() { cout << "父类A构造函数被调用:" << endl; } virtual ~A() { ... 阅读全文