C# (CSharp) ConsoleApp.Pattern.Observer AbstractObserver示例

示例#1

 public override void Remove(AbstractObserver observer)
 {
     observers.Remove(observer);
 }

示例#2

 public abstract void Remove(AbstractObserver observer);

示例#3

 public override void Accept(AbstractObserver observer)
 {
     observers.Add(observer);
 }

示例#4

 public abstract void Accept(AbstractObserver observer);