需要解释一段代码。 [英] Need an explanation for a piece of code.

问题描述

_accelerometer.ReadingChanged + = new TypedEventHandler< Accelerometer，AccelerometerReadingChangedEventArgs>（ReadingChanged）;

_accelerometer.ReadingChanged += new TypedEventHandler<Accelerometer, AccelerometerReadingChangedEventArgs>(ReadingChanged);

我需要对这段代码进行解释（特别是+ =部分代码） ）。 

我是C＃的新手，所以如果有任何我应该阅读的内容，请尽可能提供链接，但更理想的解释。

我确实知道C和C ++，但这似乎没什么用处。

I need an explanation for this piece of code (especially the += part of it). 
I'm new to C# so if there is any thing that I should read up please provide links if possible but an explanation would be more desirable.
I do have knowledge of C and C++ but that doesn't seem to be of much use here.

_accelerometer是Accelerometer的一个对象



该代码应该是"//订阅加速度计ReadingChanged事件。"但是我想知道这是怎么发生的。



谢谢

_accelerometer is an object of Accelerometer

The code is supposed "// Subscribe to accelerometer ReadingChanged events." but I'd like to know how that happens exactly.

Thanks

推荐答案

ReadingChanged&NBSP;是一个事件;当阅读改变时，班级会引发事件。您添加处理程序。在引发事件时将调用该处理程序。

ReadingChanged  is an event; the class raises it event when the reading changes. You add an handler. that handler will be called when the event is raised.

事件是一种代理

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