C++ 继承 + 虚函数
#include<iostream>
#include<string>
using namespace std;
class Platform {
public:
virtual string sysinfo() = 0;
virtual ~Platform() {}
};
class MacOS : public Platform{
public:
string sysinfo() {
return "MacOS owo";
}
~Platform() {}
};
class Windows : public Platform{
public:
string sysinfo() {
return "Windows T_T";
}
~Platform() {}
};
