
我发现大多数程序都是很自然地创建和处理对象的,所以我通常不会担心它。
一些例子:
person = Person('john')person = Person('james')# Whoops! 'john' has died!people = []people.append(Person('john'))# ...# All 'Persons' live in peoplepeople = []# Now all 'Persons' are dead (including the list that referenced them)class House(): def setOwner(self, person): self.owner = personhouse.setOwner(people[0])# Now a House refers to a Personpeople = []# Now all 'Persons' are dead, except the one that house.owner refers to.我认为您所追求的是:
people = {}people['john'] = Person('john')def removePerson(personName): del people[personName]removePerson('john')在这种情况下,
people是主列表,您可以控制何时
Person从列表(它的字典)中添加和删除列表。
您可能必须仔细考虑一个被创建的人的概念,然后彻底死去:一旦创建,这个人将如何与模拟互动。死亡后,如何解开引用?(一个人可以引用其他内容,例如
House在我的示例中可以使一个人存活)。您可以让其他对象仅保留该人的名字。
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