1. setup the python3 enviromemt via download the excuted files from the website https://www.python.org/downloads/
2.Atfer seting up ,confirm that whether the enviroment is successful or not .
open the CMD windows / Linux terminal to type "python" ,then press the enter key.
3.create a python file for coding.eg :demo.py
# coding=gbk #it can be avoid the syntaxerror：non-utf-8 code starting with \x3
import urllib.request # urllib.request is a package which usally used to get the infomation form the web pages
url="http://www.baidu.com" # the web site that we want to get the information from it
response=urllib.request.urlopen(url) # get the reponse from the web server,the expected result is the information that we wanted.
html=response.read() # return the information the Binary string,so that the infromation can be displayed.
codeOfHtml=html.decode('utf-8') #decoding the information
print(codeOfHtml) #print the information
4. Run the demo.py script
