python类变量与成员变量，及模块中类变量共享

今天搞python的PYQT5软件编程很头大，但也正因此而搞清楚了python的类变量与成员变量中的问题，也是看了几篇大佬的博客才脱离贫瘠的头脑，现在转载一下~
https://www.csdn.net/gather_2e/MtzaAgysMTQ3LWJsb2cO0O0O.html
https://www.cnblogs.com/turbolxq/p/11883414.html
https://www.jb51.net/article/194835.htm
https://www.jb51.net/article/54286.htm
https://www.jb51.net/article/112525.htm
https://www.cnblogs.com/crazyrunning/p/6945183.html
https://www.cnblogs.com/jiaoyaxiong/p/13176897.html
https://blog.csdn.net/lihao21/article/details/79762681
以备忘了再回顾啦啦啦啦