python 爬取网页内容

#encoding:UTF-8
import urllib
import urllib.request
import bs4
from bs4 import BeautifulSoup as bs
def test1():
    url = "http://www.stylusstudio.com/edifact/D95B/CODECO.htm"
    resp = urllib.request.urlopen(url)
    data = resp.read().decode('UTF-8')
    soup = bs(data, 'html.parser')    
    segment11= soup.find_all('table')
    segment1=segment11[7].find_all('tr')#表示第几个table，此时表示进去html网页中的第7个table

 
    f2=open('./text1.txt','a',encoding='cp852')
    for item in segment1:

            print(item)
            '''
            <tr class="FrameTreeFont"><td><span class="FrameDrawFont">│
            <span class="FrameHideFont">─</span>│<span class="FrameHideFont">─</span>├─</span>
            <a class="FrameItemFont" href="DAM_.htm" target="classFrame" title="Damage">DAM</a> 
            Damage</td><td align="right"><span class="FrameDetailFont"> ×1 
            </span></td><td><span class="FrameDetailFont">(M)</span></td></tr>
            '''

            print(item.get_text())#以文本方式呈现
            '''
            │─│─├─DAM Damage ×1 (M)
            '''
            # print(item.td.span.get_text())#获取具体标签内部内容
            print([text for text in item.stripped_strings] )#以列表方式呈现
            '''
            ['│', '─', '│', '─', '├─', 'DAM', 'Damage', '×1', '(M)']
            '''
            '''
            soup.get_text("|")#u'
I linked to |example.com|
'进一步，通过strip去除掉文本每个位的头尾空白。

            soup.get_text("|", strip=True)#u'I linked to|example.com'
            '''
            f2.writelines(str([text for text in item.stripped_strings])+'
')
    f2.close()     
if __name__=='__main__':
    test1()