ex_constfunc.cpp

郑阿齐VC教材

#include <iostream.h>
class COne
{
public:
    COne(int a, int b) { x = a; y = b; }
    void print();
    void print() const;		// 声明常成员函数
private:
    int x, y;
};
void COne::print()
{
    cout<<x<<", "<<y<<endl;
}
void COne::print() const
{
    cout<<"使用常成员函数："<<x<<", "<<y<<endl;
}
void main()
{
    COne one(5, 4);
    one.print();
    const COne two(20, 52);
    two.print();
}