static void Main(string[] args)
{
Context context = new Context();
context.setState(new BlueState());
context.pull();
context.pull();
context.pull();
context.pull();
context.pull();
Console.ReadLine();
}
public void doAction(Context context)
{
Console.WriteLine("Player is in stop state");
context.setState(this);
}
public void handle(Context context)
{
Console.WriteLine("State B");
context.setState(this);
}
public override void handlepush(Context c)
{
Console.WriteLine("变成蓝色");
c.setState(new BlueState());
}
public override void handlepull(Context c)
{
Console.WriteLine("变成绿色");
c.setState(new GreenState());
}
public override void handlepull(Context c)
{
Console.WriteLine("变成黑色");
c.setState(new BlackState());
}