python - 如何从 Python 的嵌套列表中删除内部元素？

Question

我已经创建了一个列表

a = [[3, 4], [5], [6, 7, 8]]

我想从此列表中删除 3 个。这是什么命令？

Answer 1

很多可能的方法

>>> mylist = [[3,4],[5],[6,7,8]]
>>> mylist[0] = [4]
>>> mylist
[[4], [5], [6, 7, 8]]
>>> mylist = [[3,4],[5],[6,7,8]]
>>> del mylist[0][0]
>>> mylist
[[4], [5], [6, 7, 8]]
>>> mylist = [[3,4],[5],[6,7,8]]
>>> mylist[0].remove(3)
>>> mylist
[[4], [5], [6, 7, 8]]

选择你的:)