枚举变量的使用

#include <iostream>

using namespace std;

void main()

{

    enum Weekday {Sunday,Monday,Tuesday,Wednesday,Thresday,Friday,Saturday};

    int a=2,b=1;

    Weekday day;

    day=(Weekday)a;

        cout << day << endl;

    day=(Weekday)(a-b);

        cout << day << endl;

    day=(Weekday)(Sunday+Wednesday);

        cout << day << endl;

    day=(Weekday)5;

    cout << day << endl;

}