Question

当班级具有随机offerid时，如何使用beautifulsoup查找所有班级？我正在尝试使用以下语法，但没有任何帮助

containers = page_soup.findAll("div",{"class":xyz "})

类示例如下

<div class=abc">
<div class=bcd">
<div class="xyz " offerid="65546">
<div class="xyz " offerid="46465">
<div class="xyz " offerid="56747">
</div>
</div>

Answer 1

使用CSS选择器获取具有类名称的项目。请尝试以下示例。

data = '''
<div class="xyz " offerid="65546">Test 1</div>
<div class="xyz " offerid="46465">Test 2</div>
<div class="xyz " offerid="56747">Test 3</div>
'''
soup = BeautifulSoup(data,'html.parser')

containers = soup.select("div.xyz")
for item in containers:
    print(item.text)

OR

data = '''
<div class="xyz " offerid="65546">Test 1</div>
<div class="xyz " offerid="46465">Test 2</div>
<div class="xyz " offerid="56747">Test 3</div>
'''
soup = BeautifulSoup(data,'html.parser')

containers = soup.select(".xyz")
for item in containers:
    print(item.text)

已编辑

：

data = '''
<div class=abc">
<div class=bcd">
<div class="xyz " offerid="65546">
<div class="xyz " offerid="46465">
<div class="xyz " offerid="56747">
</div>
</div>
'''
soup = BeautifulSoup(data,'html.parser')
containers = soup.select("div.xyz[offerid]")

for item in containers:
     print(item['offerid'])

Answer 2

我不清楚您的问题是否是100％清楚的，但是如果您通过类名来选择div，则ID无关紧要。下面的示例代码有效。

html = '''
<div class="xyz " offerid="65546"> sample text </div>
<div class="xyz " offerid="46465"> sample text </div>
<div class="xyz " offerid="56747"> sample text </div>
'''
soup       = BeautifulSoup(html,'html.parser')

containers = soup.find_all("div",{"class":"xyz "})

Answer 3

也许您想要一个属性选择器

parental_line

或

data = [item['offerid'] for item in soup.select('[offerid]')]

当班级具有随机offerid时，如何使用beautifulsoup查找所有班级？

3 个答案: