Class Base

code/2/2.7.cpp:11–32

#include <iostream>
#include <string>
class Base {
public:
    std::string str;
    int value;
    Base() = delete;
    Base(std::string s) {
        str = s;
    }
    
    // 委托构造
    Base(std::string s, int v) : Base(s) {
        value = v;
    }
    
    // 终止重载
    virtual void foo() final {
        return;
    }
    virtual void foo(int v) {
        value = v;
    }
};
class Subclass final : public Base {
public:
    double floating;