Python: 从数组中赋值变量

Question

我在 Python 中有一些代码：

repost_pid = row[0]
repost_permalink = row[1]
repost_domain = row[2]
repost_title = row[3]
repost_submitter = row[4]

是否有一种单行方式来分配这些变量？

另外，如果我想跳过一个值，我该怎么办？

Answer 1

是的，您可以用 , 分隔每个变量以执行 unpacking

repost_pid, repost_permalink, repost_domain, repost_title, repost_submitter = row

如果有一个您不关心的特定值，the convention is to assign it to an underscore variable，例如

repost_pid, repost_permalink, _, repost_title, repost_submitter = row

Answer 2

repost_pid,repost_permalink, repost_domain, repost_title, repost_submitter = row[0], row[1], row[2], row[3], row[4]

但无法读取

Answer 3

如果你想在序列解包时跳过一个值，你可以这样做：

>>> row
[0, 1, 2, 3]
>>> r0,r1,r3=row[0:2]+[row[3]]
>>> r0,r1,r3
(0, 1, 3)

Python: Assign variables from array