然而,tuple是不可变的。
其中之一就是不可变属性。
该类的实例是不可变的。
And I responded to at least one email about this issue, someone quite correctly said tuple are immutable, how can I change one?
我在不止一封邮件里回复了这个问题,一些人很明智,知道元组不可变,但是疑问怎么能去改变他们,我的答案是?
The key thing about both of them is that they were immutable.
关于他们有一点很关键的,就是他们都是不可变的。
What has changed and what has remained essential?
有什么变了,又有什么还是不可缺少的?
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