请用一行代码实现间隔填充

五竹子 · 发表于 2022-3-8 16:01:49

不知道

isdkz · 发表于 2022-3-16 19:38:38

words = [words[i] if words[i] else words[i-1] for i in range(len(words))]

复制代码

3068794598 · 发表于 2022-3-26 20:30:02

kiwi_zz · 发表于 2022-4-1 15:11:35

1111

lygwhy · 发表于 2022-4-7 23:08:33

做不出来睡不着

itsuyo林李 · 发表于 2022-4-8 09:00:21

words[1::2]=words[0::2]

江某指点迷津 · 发表于 2022-4-25 22:39:11

[words[i] if words[i] is not None else words[i-1] for i in range(len(words)) ]

qian123qian · 发表于 2022-4-27 20:29:02

学习一下

1078100248 · 发表于 2022-7-14 11:01:05

for i in range(len(words)):
if i % 2:
words[i]=words[i-1]

改成一行失败

zhangqinwu · 发表于 2022-8-1 14:13:40

words = [i for i in words if i for j in range(2)]

qq545246419 · 发表于 2022-8-21 22:18:08

words = [words[i-1] if words[i] is None else words[i] for i in range(len(words))]

fourthbro · 发表于 2022-8-26 20:15:08

for i in range(len(words)):
if words[i] == None:
words[i] = words[i - 1]

hqk770 · 发表于 2022-9-13 17:10:19

python鱼new · 发表于 2022-9-17 15:46:58

L40 · 发表于 2022-9-19 13:20:25

不老松 · 发表于 2022-9-29 14:51:45

学习

jack6666 · 发表于 2022-10-15 15:45:45

words = [*[i,i] for i in words if words.index(i)%2==1]

die_Blutengel · 发表于 2022-11-2 23:45:12

words = ["FishC", None, "Python", None, "Meta", None, "Program", None]

words = list(map(lambda x:words[x-1]if words[x] == None else words[x],range(len(words))))

print(words)
['FishC', 'FishC', 'Python', 'Python', 'Meta', 'Meta', 'Program', 'Program']

大饭想好好学习 · 发表于 2022-11-3 18:04:17

words = [words[i-1] if words[i] == None else words[i] for i in range(len(words)) ]

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