static void Case1()
{
Man man;
man = new Man();
man.play();
man.Walk();
}
public static void CaseStudy1()
{
Man man;
man = new Man();
man.Play();
man.Walk();
}
public static void Case1()
{
Man man = new Man();
Console.WriteLine("case1");
man.Play();
man.Walk();
}