通过维护事件的已注册事件处理程序列表，委托为引发事件的类担当事件发送器的角色。
A delegate ACTS as an event dispatcher for the class that raises the event by maintaining a list of registered event handlers for the event.
通过维护事件的已注册事件处理程序列表，委托为引发事件的类担当事件发送器的角色。
A delegate ACTS as an event dispatcher for the class that raises the event by maintaining a list of registered event handlers for the event.
应用推荐