'coding = utf8'和' - * - coding：utf-8 - * - '之间有什么区别？ [英] What's the difference between 'coding=utf8' and '-*- coding: utf-8 -*-'?

问题描述

使用

之间是否有任何区别

 ＃coding = utf8 
  pre> 
 
 
和
 ＃ -  *  -  coding：utf-8 -  *  -  
  
 
 ＃encoding：utf-8 
  
 
 
解决方案
没有区别; Python识别所有3.它寻找模式：
 编码[：=] \s *（[ -  \w 。] +）
  
文件的前两行（也必须以＃）。
 
 
 
这是文字'coding'，后跟冒号或等号，空白。 
 
 
 
   -  *  -  是一个 Emacs特定语法;让文本编辑器知道使用什么编码。它使注释对两个工具有用。 VIM支持类似语法。
 
 
 
请参阅PEP 263：定义Python源代码编码。
 
Is there any difference between using 
#coding=utf8
and
# -*- coding: utf-8 -*-
What about
# encoding: utf-8

解决方案
There is no difference; Python recognizes all 3. It looks for the pattern:
coding[:=]\s*([-\w.]+)
on the first two lines of the file (which also must start with a #).

That's the literal text 'coding', followed by either a colon or an equals sign, followed by optional whitespace. Any word, dash or dot characters following that pattern are read as the codec.

The -*- is an Emacs-specific syntax; letting the text editor know what encoding to use. It makes the comment useful to two tools. VIM supports similar syntax.

See PEP 263: Defining Python Source Code Encodings.

                        
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