微软 .NET 框架中可以定义托管类事件并用委托和 += 操作符处理这些事件。这种机制似乎很有用，那么在本机 C++ 中有没有办法做同样的事情？ -Microsoft.NET framework can be defined category of custody with the incident and commissioned = operator and handling of these incidents. This mechanism appears to be useful,