我一直在阅读super()的工作原理。我遇到了thisrecipe演示如何创建有序计数器:fromcollectionsimportCounter,OrderedDictclassOrderedCounter(Counter,OrderedDict):'Counterthatrememberstheorderelementsarefirstseen'def__repr__(self):return'%s(%r)'%(self.__class__.__name__,OrderedDict(self))def__reduce__(self):returnself.__class__,(Or

我一直在阅读super()的工作原理。我遇到了thisrecipe演示如何创建有序计数器:fromcollectionsimportCounter,OrderedDictclassOrderedCounter(Counter,OrderedDict):'Counterthatrememberstheorderelementsarefirstseen'def__repr__(self):return'%s(%r)'%(self.__class__.__name__,OrderedDict(self))def__reduce__(self):returnself.__class__,(Or