C#里类的get和set方法编写和调用

using System;
class Date
{
    int day;
    int month;
    int year;
    public int Day{
        get {
            return day;
        }
        set {
            day = value;
        }
    }

    public int Month{
        get {
            return month;
        }
        set {
            month = value;
        }
    }

    public int Year{
        get {
            return year;
        }
        set {
            year = value;
        }
    }

    public bool IsLeapYear(int year)
    {
        return year%==  ? true: false;
    }
    public void SetDate (int day, int month, int year)
    {
        this.day = day;
        this.month = month;
        this.year = year;
    }
}

方法的调用

class User
{
  public static void Main()
  {
        Date date = new Date();
        date.Day = ;
        date.Month = ;
        date.Year = ;
        Console.WriteLine
        ("Date: {0}/{1}/{2}", date.Day, date.Month, date.Year);
    }
}