
如何理解和使用tuple? - 知乎
tuple一般在中文中称为元组,或者说n元组。就是由n个元素组成的一种有序数据结构(当然n是不小于零的整数)。不同的编程语言对元组有不同实现,但既然标签打的Python,那就只谈和Python中的元 …
python - What is a tuple useful for? - Stack Overflow
Sep 9, 2014 · A tuple is a good way to pack multiple values into that cookie without having to define a separate class to contain them. I try to be judicious about this particular use, though.
list - What exactly are tuples in Python? - Stack Overflow
A tuple is a sequence of immutable Python objects. Tuples are sequences, just like lists. The differences between tuples and lists are, the tuples cannot be changed unlike lists and tuples use parentheses, …
python 的 tuple 是不是冗余设计? - 知乎
那我就从另一个角度,也就是同构与异构这个角度讨论一下tuple的价值。 在Python中,list是同构的,而tuple是异构的——先别急着反驳。 我们知道在Python中list确实是可以塞下多个不同类型元素的, …
types - What are "named tuples" in Python? - Stack Overflow
Jun 4, 2010 · Named tuples are basically easy-to-create, lightweight object types. Named tuple instances can be referenced using object-like variable dereferencing or the standard tuple syntax. …
std::tuple能否代替struct? - 知乎
C++23有个类型叫 enumerate_view。在提案阶段有个很大的问题就是它的元素类型应该是 std::tuple 还是 struct。 最后标准委员会选择用 std::tuple。 之所以这么选择,我觉得可能有几点理由: 一是,提案 …
python - Inserting an item in a Tuple - Stack Overflow
Jan 3, 2017 · Yes, I understand tuples are immutable but the situation is such that I need to insert an extra value into each tuple. So one of the items is the amount, I need to add a new item next to it in a
Convert list to tuple in Python - Stack Overflow
Have you assigned the name 'tuple' as a variable name? it should work fine. L is a list and we want to convert it to a tuple. L = [1, 2, 3] tuple (L) By invoking tuple, you convert the list (L) into a tuple. As …
Type hinting tuples in Python - Stack Overflow
Nov 28, 2017 · def func(var: list[int]): # do something func([1]) # would be fine func([1, 2]) # would also be fine func([1, 2, 3]) # would also be fine That's consequentially, in a way, because of the type of …
python - Multiple variables using tuple - Stack Overflow
This doesn't store the tuple anywhere, so you'll be left with 4 variables with 4 different values. When you change the value of country, you change the value of this single variable, not of the tuple, as string …