题目内容
(请给出正确答案)
[单选题]
C#中处理事件的步骤有:a.将事件通知订户 b.定义事件 c.给对象预定事件。请选择正确的步骤:
A.a-b-c
B.c-b-a
C.b-c-a
D.b-a-c
提问人:网友educity1314
发布时间:2022-01-07
A.a-b-c
B.c-b-a
C.b-c-a
D.b-a-c
A、public delegate MessageDelegate messageEvent
B、public MessageDelegate messageEvent
C、private event MessageDelegate(messageEvent)
D、public event MessageDelegate messageEvent;
A、代码中存在错误,代码行V(new D(R));使用委托错误
B、21
C、B
D、21B
A、public event MsgHandler(string msg)
B、public event delegate MsgHandler(string msg)
C、public delegate MsgHandler(string msg)
D、public override MsgHandler
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