Python跨模块变量

问题描述

我意识到还有其他线程可以解决这个问题，但是由于我对'Classes'还是很陌生，并且已经构造了我的类结构...我想找到一种可以集成到我的代码中的方法.我敢肯定，这将不是一个难回答的问题！

I realize there are other threads addressing this problem but as I am fairly new to 'Classes' and have already constructed my class structure ... I would like to find a method that I can integrate into my code. I'm sure this will NOT be a difficult one to answer!

第一个文件:NameResult.py

from NameAssign import *

NameList = NameWorks()
print(NameList.InputNames(NameVar))

第二个文件:NameAssign.py

class NameWorks:
    def __init__(self, NameVar = []):

        self.NameVar = NameVar

    def InputNames(self, NameVar):
        global NameVar
        NameVar = ['harry', 'betty', 'sam']

结果:

NameError: name 'NameVar' is not defined

非常感谢所有回复...

All replies are much appreciated ...

推荐答案

NameVar在NameAssign中未定义；它仅作为局部变量存在于NameAssign.NameWorks.InputNames()中.解决此问题的最简单方法是在全局级别的NameAssign中对其进行定义.

NameVar is not defined in NameAssign; it only exists within NameAssign.NameWorks.InputNames() as a local variable. The easiest way to fix this is to define it in NameAssign at the global level.

事实证明，这就是您想要做的:

It turns out that this is what you want to do:

import NameAssign

namelist = NameAssign.NameWorks(['harry', 'betty', 'sam'])
print namelist.InputNames()  # or print(...) for Py3k

NameAssign.py

class NameWorks(object):
  def __init__(self, names):
    self.names = names

  def InputNames(self):
    return self.names

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