public static void Main(string[] args)
{
MyDate m1 = new MyDate(24, 3, 2001);
MyDate m2 = new MyOkDate(24, 3, 2001);
Console.WriteLine(m1); //ÏÔʾMyDate
Console.WriteLine(m2); //ÏÔʾ2001-3-24
}
public static void Main(string[] args)
{
MyDate m1 = new MyDate(24, 3, 2001);
MyDate m2 = new MyDate(24, 3, 2001);
Console.WriteLine(m1.Equals(m2)); //不相等,显示false
m1 = new MyOkDate(24, 3, 2001);
m2 = new MyOkDate(24, 3, 2001);
Console.WriteLine(m1.Equals(m2)); //相等,显示true
}
public override bool Equals(object obj)
{
if (obj is MyOkDate)
{
MyOkDate m = (MyOkDate)obj;
if (m.day == day && m.month == month && m.year == year)
{
return(true);
}
}
return(false);
}
