如果两个对象具有相同的值,则可以将它们与==进行比较。我想要做的就是找出两个对象实际上只是对同一个对象的引用,我怎么能用Python做到这一点? 谢谢
If two objects are of equal value you can compare them with ==. What I want to do is find out if two objects are actually just references to the same object, how can I do this in Python? Thanks
推荐答案da ******* @ gmail écrit: 如果两个对象具有相同的值,您可以将它们与==进行比较。我想要做的是找出两个对象实际上是否只是对同一个对象的引用,我该如何在Python中执行此操作? If two objects are of equal value you can compare them with ==. What I want to do is find out if two objects are actually just references to the same object, how can I do this in Python?
最明显的方式(像往常一样?): 如果obj1是obj2: //你的代码在这里
The most obvious way (as usual ?): if obj1 is obj2: // your code here
对于删除我的消息感到抱歉,我发布了错误的谷歌 帐户,我真的不希望我的电子邮件在那些恼人的垃圾邮件机器人 可以找到它。 Sorry about removing my message, I posted with the wrong google account, I don''t really want my email where those irritating spam bots can find it. 最明显的方式(像往常一样?): 如果obj1是obj2: //你的代码在这里 我马上就想到了,并在控制台上对它进行了测试,但它没有像我预期的那样工作: foo = 3 bar = 3 zoo = foo foo是动物园 Truefoo是酒吧 Truezoo是酒吧 The most obvious way (as usual ?):if obj1 is obj2: // your code here I immediately thought of is, and tested it in the console, but it didn''t work quite like I expected: foo = 3bar = 3zoo = foofoo is zoo Truefoo is bar Truezoo is bar
True 很明显foo和bar有相同的价值,但它们是不同的对象 不是吗?然而应用is运算符产生True。 谢谢, -Dan
True clearly foo and bar have the same value but they are different objects aren''t they? Yet applying the is operator yields True. Thanks, -Dan
el******@yahoo 写道: foo = 3 bar = 3 foo = 3bar = 3
很明显foo和bar有相同的值,但它们是不同的对象不是吗?
clearly foo and bar have the same value but they are different objects aren''t they?
不,他们是同一个对象。现在尝试使用300而不是3 ;-)。
No, they''re the same object. Now try it with 300 instead of 3 ;-).
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