[Ｃ++] 期末考 562-7

[vincent79715 (軒~)]

#include "iostream"
using namespace std;

class Light
{
        private:
                char *color;
        public:
                Light();
                void charge();
};
Light::Light()
{
        color="Red";
}
void Light::charge()
{
        cout<<color;
        if(color=="Red")
                color="Green";
        else if(color=="Green")
                color="Yellow";
        else
                color="Red";
}
int main( )
{
        Light a;
        while(1)
        {
                a.charge();
                system("pause");
        }
}

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