PyQt Multiple Windows - 如何在模块Qt Designer之间传递函数(PyQt Multiple Windows - how to pass functions between modules Qt Designer)

 我将从问题开始，然后尝试解释：导入模块是否有办法在导入模块的模块中调用函数？ 
 
 我只是学习使用Qt，并开始使用Qt Designer来获得一些基础知识。 
 
 我已经想出如何创建多个“.ui”文件以获取多个窗口的代码，并设法通过导入两个窗口的代码来解决如何从主应用程序调用多个窗口。 
 
 例如，从win1.ui和win2.ui开始我创建win1.py和win2.py - 从我的主应用程序我导入win1和win2 ... 
 
 注意 - 我通过以下简单教程得到了这一点： http ： //www.youtube.com/watch？v = bHsC6WJsK-U＆ list = PLF4575388795F2531＆ index = 10＆ feature = plpp_video 
 
 好的 - 现在问题。 如果我在win2中有一个按钮，我知道如何将该按钮链接到win2.py代码中的函数。 我不知道怎么做是将win2中的按钮链接到我的主应用程序中的一个函数。 
 
 我唯一的想法是添加一个函数作为设置第二个窗口的类的参数，但如果我这样做，那么对win2.ui的任何更改都将破坏我已更改的代码。 
 
 因此，导入模块是否有办法在导入模块的模块中调用函数？ 
 
 我希望这很清楚，不添加一堆不相关的代码...... 

I'll start with the question and then try to explain: Is there a way for an imported module to call a function in the module that imports it?
 
I am just learning to use Qt and am starting with Qt Designer to get some fundamentals worked out.
 
I have figured out how to create more than one ".ui" file in order to get the code for multiple windows and have managed to work out how to call the multiple windows from a main application by importing the code for the two windows.
 
For example, starting with win1.ui and win2.ui I create win1.py and win2.py - from my main application I import win1 and win2...
 
Note - I got this far by following this simple tutorial : http://www.youtube.com/watch?v=bHsC6WJsK-U&list=PLF4575388795F2531&index=10&feature=plpp_video
 
OK - now the question. If I have a button in win2, I know how to link that button to a function in the win2.py code. What I don't know how to do is link the button in win2 to a function in my main application.
 
My only thought would be to add a function as an argument to the class that sets up the second window but if I do that then any changes to win2.ui will wreck the code that I have changed.
 
Thus, Is there a way for an imported module to call a function in the module that imports it?
 
I hope this is clear without adding a bunch of code that isn't really relevant...

原文：https://stackoverflow.com/questions/12061251