Python菜鸟今天写程序时加了中文注释，竟然就报错了，头一回碰到注释报错，活久见。

平时看别人代码时，或多或少会碰到中文注释乱码问题，原因是不同文件编码格式，有些文件编码并不能显示中文，如ASCII。而PyCharm对于中文不仅仅是显示乱码问题，而是编译报错。如下

SyntaxError: Non-ASCII character '\xe6' in file TestPy3/t.py on line 19, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details

看看提示的链接

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=
       
         :
       
      
     

大概意思是，默认文件是ASCII格式，需要更改文件编码，操作是在文件首行加上

#!/usr/bin/python# -*- coding:utf8 -*-

编译运行，一切正常。