PyQT中多重继承,其中继承的父类有QObject或QObject的子孙类

如果Child多重继承(Parent_1,Parent_2,Parent_3)，其super函数

super(Child, self).__init__()

则会执行继承的最左侧的父类:Parent_1.__init__()

但是如果Parent_2是QObject或QObject的子孙类，

在Child的中__init__()中执行QObject.__init__(self)

则会使Parent_3.__init__(self)被执行

原因不明。。。。。。。。。

例子哈：

from PyQt5.QtCore import  QObject
class Parent_1:
    def __init__(self):
        print('Parent_1.__init__')
 
class Parent_2(Parent_1):
    def __init__(self):
        super(Parent_2, self).__init__()
        print('Parent_2.__init__')
 
class Parent_3:
    def __init__(self):
        print('Parent_3.__init__')      
 
class Child_2( QObject , Parent_2,Parent_3):
        def __init__(self):
            #QObject.__init__(self)
            super(QObject, self).__init__()
            #super(Child_2, self).__init__()
 
if __name__ == '__main__': 
 
    import sys
    from PyQt5.QtWidgets import QApplication
    app = QApplication(sys.argv)
 #####################################################   
 
    print('---------------------------')
    child_2 =     Child_2()
  #####################################################
    sys.exit(app.exec_())

输出结果为：

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