C＃：'+ = anEvent'和'+ =新的EventHandler（anEvent）'之间的区别 [英] C#: Difference between ' += anEvent' and ' += new EventHandler(anEvent)'

问题描述

就拿低于code：

private void anEvent(object sender, EventArgs e) {
    //some code
}

---

---

什么是以下区别？

[object].[event] += anEvent;

//and

[object].[event] += new EventHandler(anEvent);

[更新]

显然，这两者之间没有什么区别......前者是后者的只是语法糖。

Apparently, there is no difference between the two...the former is just syntactic sugar of the latter.

推荐答案

有什么区别。在你的第一个例子中，编译器会自动推断出你想实例化委托。在第二个例子中，你明确地定义了委托。

There is no difference. In your first example, the compiler will automatically infer the delegate you would like to instantiate. In the second example, you explicitly define the delegate.

代表推断加入C＃2.0中。所以对于C＃1.0的项目，第二个例子是你唯一的选择。 2.0项目，利用推理的第一个例子是我会preFER使用，并看到在codeBase的 - 因为它更简洁

Delegate inference was added in C# 2.0. So for C# 1.0 projects, second example was your only option. For 2.0 projects, the first example using inference is what I would prefer to use and see in the codebase - since it is more concise.

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