访问符和访问修饰符的区别 [英] Difference between access specifier and access modifier

问题描述

我在互联网上阅读和周围我听到人们说

I've read around on the internet and I've heard people say

访问说明::

访问说明符决定如何领域
访问是
其他类代码。从
访问范围完全访问完全
无法访问。您可以选择
声明一个字段的访问
说明关键字：公共，私有，
或保护

The access specifier determines how accessible the field is to code in other classes. Access ranges from totally accessible to totally inaccessible. You can optionally declare a field with an access specifier keyword: public, private, or protected.

访问修饰符::

您可以选择性地声明场
与修饰符关键字：最终或
挥发性和/或静态和/或
短暂的，抽象的，等等。

You can optionally declare a field with a modifier keyword: final or volatile and/or static and/or transient, abstract, etc.

有什么不同呢？因为访问修饰符和访问说明大多数定义说明同样的事情..这似乎很暧昧。

Is there any difference at all? Because most definitions for access modifiers and access specifiers state the same thing.. which seems so ambiguous.

推荐答案

在这种情况下，你能想到的访问说明的作为的保护符的 - 他们指定的变量可以被访问。相比之下，获得的修饰的是完全不同的;他们指定的如何的变量应该（或不应该）访问;例如。只读，挥发性等

In this context, you can think of access specifiers as protection specifiers -- they specify where a variable can be accessed from. By contrast, access modifiers are completely different; they specify how variables should (or should not) be accessed; e.g. read-only, volatile, etc.

即，可变可以是公共但只读，或者它可以是私有和可写 - 访问符没什么做的修饰词。

i.e., a variable can be public but read-only, or it can be private and writable -- the access specifiers have nothing to do with the modifiers.

不过，我有点惊讶的是，术语是为了C＃，因为微软实际上是调用公共和私人 访问修饰符 ，并呼吁挥发性和只读只是简单的的 改性剂 。

However, I'm a little surprised that the terminology is for C#, since Microsoft actually calls public and private "access modifiers", and it calls volatile and readonly just plain "modifiers".

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