C# (CSharp) State Switch示例

示例#1

 public override void On(Switch sw)
 {
     Console.WriteLine("Turning light on!");
     sw.state = new OnState();
 }

示例#2

 public virtual void Off(Switch sw)
 {
     Console.WriteLine("The light is already off!");
 }

示例#3

 public override void Off(Switch sw)
 {
     Console.WriteLine("Turning light off!");
     sw.state = new OffState();
 }

示例#4

 public virtual void On(Switch sw)
 {
     Console.WriteLine("Light is already on");
 }