列表中的“你”是什么意思？

Question

This is the first time I've came across this. Just printed a list and each element seems to have a u in front of it ie

[u'hello', u'hi', u'hey']

What does it mean and why would a list have this in front of each element?

As I don't know how common this is, if you'd like to see how I came across it, I'll happily edit the post.

Answer 1

it's an indication of unicode string. similar to r'' for raw string.

>>> type(u'abc')
<type 'unicode'>
>>> r'ab\c'
'ab\\c'

Answer 2

Unicode格式。

Answer 3

The u just means that the following string is a unicode string (as opposed to a plain ascii string). It has nothing to do with the list that happens to contain the (unicode) strings.

Answer 4

我相信u'前缀创建一个unicode字符串而不是常规的ascii