CPlusPlusThings/basic_content/struct/ext_struct_func.cpp

32 lines
620 B
C++

#include <iostream>
#include <stdio.h>
using namespace std;
struct Base {
int v1;
// private: //error!
int v3;
public: // 显示声明public
int v2;
virtual void print() { printf("%s\n", "Base"); };
Base() { cout << "Base construct" << endl; };
virtual ~Base() { cout << "Base deconstruct" << endl; };
};
struct Derived : Base {
Derived() { cout << "Derived construct" << endl; };
virtual ~Derived() { cout << "Derived deconstruct" << endl; };
public:
int v2;
void print() { printf("%s\n", "Derived"); };
};
int main() {
Base *b = new Derived();
b->print();
delete b;
return 0;
}