BeautifulSoup第一课

from urllib.request import urlopen

from urllib.error import HTTPError

from bs4 import BeautifulSoup

def getTitle(url):

try:

html=urlopen(url)

except HTTPError as e:            #服务器错误

return none

try:

obj=BeautifulSoup(html,"html.parser")

title=obj.body.h1

except AttributeError as e:        #属性错误

return none

return title

title=getTitle("                     ")

if title == None:

print("None Found")

else:

print(title)