// 声明一个枚举类型Weekday,基类为int,访问范围为public
public enum Weekday
{
Sun, Mon, Tue, Wed, Thu, Fri, Sat
}
// 功能: 得到某日的下一日(星期几)
// 参数:
// wd : 枚举类型Weekday
// 返回值: 枚举类型Weekday
public static Weekday NextDay(Weekday wd)
{
Weekday wdnext;
if (wd == Weekday.Sat)
{
wdnext=Weekday.Sun;
}
else
{
wdnext=wd+1;
}
return wdnext;
}

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