#coding=utf-8
#-*- coding: utf-8 -*-
对于python解释器来说,这两种写法一样。但是对于编辑器来讲,可能会出现识别问题。
以下是从python官网摘录
Defining the Encoding
Python will default to ASCII as standard encoding if no other encoding hints are given. To define a source code encoding, a magic comment must be placed into the source files either as first or second line in the file, such as: # coding=or (using formats recognized by popular editors) #!/usr/bin/python # -*- coding: -*- or #!/usr/bin/python # vim: set fileencoding= : More precisely, the first or second line must match the regular expression "coding[:=]\s*([-\w.]+)". The first group of this expression is then interpreted as encoding name. If the encoding is unknown to Python, an error is raised during compilation. There must not be any Python statement on the line that contains the encoding declaration. To aid with platforms such as Windows, which add Unicode BOM marks to the beginning of Unicode files, the UTF-8 signature '\xef\xbb\xbf' will be interpreted as 'utf-8' encoding as well (even if no magic encoding comment is given). If a source file uses both the UTF-8 BOM mark signature and a magic encoding comment, the only allowed encoding for the comment is 'utf-8'. Any other encoding will cause an error.