How to add Chinese comments when programming in python

Recently developed and learned Pyton. When adding Chinese comments, the running program reported an error:

File "red.py", line 10
SyntaxError: Non-ASCII character '\xe5' in file red.py on line 10, but no encoding declared; see http://www.python.org/peps/pep-0263.html for details

Solution:
In the Python script file Add a sentence to the first or second line:

# -*- coding: utf-8 -*-

Since the Python source code is also a text file, when your source code contains Chinese, when saving the source code, Be sure to specify saving as UTF-8 encoding. When the Python interpreter reads the source code, in order for it to be read in UTF-8 encoding, we usually write these two lines at the beginning of the file:

#!/usr/bin/env python   //为了告诉Linux系统，这个是python可执行程序
# _*_ coding:utf-8 _*_  //为了告诉python解释器，按照utf-8编码读取源代码，否则，你在源代码中写的中文输出可能会由乱码
#coding=utf-8 //上一行代码也可以写成这种形式

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