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aijam

aijam

V2EX member #202695, joined on 2016-11-24 05:37:36 +08:00
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Feb 1, 2025
Replied to a topic by levelworm 程序员 不知道为什么,我很厌恶 map()
一直印象中 Python community 就是推荐 comprehension over map 。
map 唯一实用的场景是 zip 多个 list 的时候可以 map(fn, list1, list2, ...)。
非必要不 map
@nl101531 你提出了一个好问题。其实没必要套用他们的框架,但是了解框架里面的一些范式可以给自己更多解决问题的思路。
@aijam
所以其他的语言里 p1 = p1->next = head;
p1->next 先被指向了 head (此时 p1 还不是 head ),p1 才被指向 head
但在 Python 里,ltPtr = ltPtr.next = head
ltPtr 先被指向了 head, ltPtr.next 才被指向 head ,此时 head.next 就被指向了 head 本身,是一个循环链表
a=b=c 在 python 里是 leftmost 所以相当于
a=c
b=c

但在其他 c 系语言里相当于
b=c
a=b
a=b=c 在 python 里是 leftmost 所以相当于
就算抛开合约本身不说,视频下面一堆腔调类似,名字用同一个命名规则的僵尸账号发夸夸评论,可疑的地方还不够明显?
Dec 16, 2023
Replied to a topic by James369 数学 什么样的 AI 函数是可训练的?
@James369 基本上是的
Dec 16, 2023
Replied to a topic by James369 数学 什么样的 AI 函数是可训练的?
要可导,否则不能 backpropagation
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