静态与非静态方法 [英] Static vs. non-static method

问题描述

假设你有一些方法可以作出静态，非静态内部类。

例如：

Suppose you have some method that could be made static, inside a non-static class.
For example:

private double power(double a, double b)
    {
        return (Math.Pow(a, b));
    }

你看到更改方法签名为静态任何好处？在上面的例子：

Do you see any benefit from changing the method signature into static? In the example above:

private static double power(double a, double b)
    {
        return (Math.Pow(a, b));
    }

即使有一些性能或内存的增益，不会编译器做在编译时一个简单的优化？

---

修改什么我找的是通过声明的方法为静态的好处。我知道，这是常见的做法。我想了解它背后的逻辑。

当然，这种方法只是为了澄清我的意图的例子。

Even if there is some performance or memory gain, wouldn't the compiler do it as a simple optimization in compile time?

---

What I am looking for are the benefits by declaring the method as static. I know that this is the common practice. I would like to understand the logic behind it.
And of course, this method is just an example to clarify my intention.

推荐答案

请注意，这是极不可能的编译器甚至不允许代表您这种变化，因为它改变了方法的签名。其结果是，一些精心制作的反射（如果你使用任何）可能停止工作，并且编译器真的不能告诉如果是这种情况。

Note that it is highly unlikely the compiler is even allowed to make that change on your behalf since it changes the signature of the method. As a result, some carefully crafted reflection (if you were using any) could stop working, and the compiler really cannot tell if this is the case.

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