我刚开始使用python进行一些网页抓取,而BeautifulSoup似乎随处可见。
我有以下内容:
<table class="table with-row-highlight table-archive">
<tbody>
<tr>
<td>
<div class="user-tagline ">
<span class="username " data-avatar="aaaaaaa">player1</span>
<span class="user-rating">(1357)</span>
<span class="country-flag-small flag-113" tip="Portugal"></span>
</div>
<div class="user-tagline ">
<span class="username " data-avatar="bbbbbbb">player2</span>
<span class="user-rating">(1387)</span>
<span class="country-flag-small flag-70" tip="Indonesia"></span>
</div>
</td>
<td>
<a class="clickable-link text-middle" href="https://www.chess.com/live/game/2249663029?username=belemnarmada" target="_self">
<div class="pull-left">
<span class="game-result">1</span>
<span class="game-result">0</span>
</div>
<div class="result">
<i class="icon-square-minus loss" tip="Lost"></i>
</div>
</a>
</td>
<td class="text-center">
<a class="clickable-link" href="https://www.chess.com/live/game/2249663029?username=belemnarmada" target="_self">30 min</a>
</td>
<td class="text-right">
<a class="clickable-link text-middle moves" href="https://www.chess.com/live/game/2249663029?username=belemnarmada" target="_self">25</a>
</td>
<td class="text-right miniboard">
<a class="clickable-link archive-date" href="https://www.chess.com/live/game/2249663029?username=belemnarmada" target="_self">Aug 9, 2017</a>
</td>
</tr>
100 <tr></tr> here
</tbody>
</table>
我的代码在这里停止,如何编写python代码来循环所有<tr></tr>
对并提取每个<span>
对中每个<td>
对的所有类?
我想也许我在这里没有清楚解释,你的代码返回的是该HTML中的类的名称,而我正在寻找的是相应的值,例如有一个类username
,我想得到它的值player1
和player2
;有一个类country-flag-small
flag-70
我想得到tip=Indonesia
这应该做的伎俩:
import requests
from bs4 import BeautifulSoup
res = requests.get('someLink')
soup = BeautifulSoup(res.text)
classes = []
for element in soup.find_all(class_=True):
classes.extend(element["class"])
print(classes)
我使用你的html文件测试了这个,得到了以下结果:
['table', 'with-row-highlight', 'table-archive', 'user-tagline', 'username', 'user-rating', 'country-flag-small', 'flag-113', 'user-tagline', 'username', 'user-rating', 'country-flag-small','flag-70', 'clickable-link', 'text-middle', 'pull-left', 'game-result', 'game-result', 'result', 'icon-square-minus', 'loss', 'text-center', 'clickable-link', 'text-right', 'clickable-link', 'text-middle', 'moves', 'text-right', 'miniboard', 'clickable-link', 'archive-date']
请注意,如果你还没有,你必须要pip3 install requests
此外,如果要使用计算机上的文件对其进行测试,可以执行以下操作:
from bs4 import BeautifulSoup
file = open('/path/To/Your/HtmlFile.html', 'r')
lines = file.read()
soup = BeautifulSoup(lines)
classes = []
for element in soup.find_all(class_=True):
classes.extend(element["class"])
print(classes)