这些Java概念如何转化为Python？ [英] How do these Java concepts translate to Python?
问题描述
你好，
我在业余时间学习过Python。我是一名Java / C ++程序员，通过
交易。所以我一直在阅读Python OO，我有几个问题
我找不到答案:)
1 。访问说明符在哪里？ （公共，受保护，私人）
2. Python如何知道课程是新风格还是旧风格？
例如：
A级：
通过
如何知道课程是新风格还是旧风格？或者这个
决定只发生在我添加属于新的
风格的东西时？我如何告诉Python我想使用哪一个？
3.在Java中我们有静态（类）方法和实例成员。但是，这个
差异似乎在Python中变得模糊。我的意思是，当你在Python中绑定一个成员
变量时，它是静态的还是实例？在Python中，似乎所有内容都是静态的（在Java意义上）。我是否正确？
提前致谢，
Ray
Hello,
I''ve been learning Python in my sparetime. I''m a Java/C++ programmer by
trade. So I''ve been reading about Python OO, and I have a few questions
that I haven''t found the answers for :)
1. Where are the access specifiers? (public, protected, private)
2. How does Python know whether a class is new style or old style?
E.g.:
class A:
pass
How does it know whether the class is new style or old style? Or this
decision only happens when I''ve added something that belongs to new
style? How do I tell Python which one I want to use?
3. In Java we have static (class) method and instance members. But this
difference seems to blur in Python. I mean, when you bind a member
variable in Python, is it static, or instance? It seems that everything
is static (in the Java sense) in Python. Am I correct?
Thanks in advance,
Ray
推荐答案
Ray写道：
Ray wrote:
1.访问说明符在哪里？ （公共，受保护，私人）
1. Where are the access specifiers? (public, protected, private)
AFAIK，Python中没有这样的东西。
--- Fausto
AFAIK, there is not such a thing in Python.
---Fausto
Fausto Arinos Barbuto写道：
Fausto Arinos Barbuto wrote:
Ray写道：
Ray wrote:
1.访问说明符在哪里？ （公共，受保护，私有）
1. Where are the access specifiers? (public, protected, private)
AFAIK，Python中没有这样的东西。
--- Fausto
AFAIK, there is not such a thing in Python.
---Fausto
嗯，从技术上讲，你可以使用_attribute来破坏它，但从技术上说，b
，没有公共，受保护或隐私的东西。
Well, technically you can use _attribute to mangle it, but technically
speaking, there are no public, protected, or private things.
Fausto Arinos Barbuto写道：
Fausto Arinos Barbuto wrote:
Ray写道：
Ray wrote:
1.访问说明符在哪里？ （公共，受保护，私有）
AFAIK，Python中没有这样的东西。
1. Where are the access specifiers? (public, protected, private)
AFAIK, there is not such a thing in Python.
所以一切都是公开的？我知道你可以给一个成员加上
下划线作为私有内容的前缀，但是如何保护，对于
例子？
--- Fausto
So everything is public? I know that you can prefix a member with
underscores to make something private, but how about protected, for
example?
---Fausto
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