什么是运营商= GT;'在C＃是什么意思？ [英] What does the operator '=>' mean in C#?

问题描述

什么是'=>'在此声明意味着

What does the '=>' in this statement signify?

del = new SomeDelegate(() => SomeAction());

时的上述声明一样​​，因为这一个？

Is the above declaration the same as this one?

del = new SomeDelegate(this.SomeAction);

感谢。

Thanks.

推荐答案

基本上它指定一个匿名函数，不带参数调用SomeAction。所以，是的，他们在功能上等同。虽然不相等。使用拉姆达更等同于：

Basically it's specifying an anonymous function, that takes no parameters that calls SomeAction. So yes, they are functionally equivalent. Though not equal. Using the lambda is more equivalent to:

del = new SomeDelegate(this.CallSomeAction);

在这里CallSomeAction定义为：

where CallSomeAction is defined as:

public void CallSomeAction()
{
    this.SomeAction();
}

希望帮助！

Hope that helps!

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