C# (CSharp) ListenerMap.ContainsKey示例

示例#1

 public void RemoveListener(TId id, Action listener)
 {
     if (ListenerMap.ContainsKey(id))
     {
         ListenerMap[id] -= listener;
     }
 }

示例#2

 public void AddListener(TId id, Action listener)
 {
     if (ListenerMap.ContainsKey(id))
     {
         ListenerMap[id] += listener;
     }
     else
     {
         ListenerMap.Add(id, listener);
     }
 }