Python 如何获取第一个`<；李>；`从`<；ul>；`与美联

如下图所示

<div class="carousel"> 
  <div class="carousel_Wrapper"> 
    <div class="carousel_Container swiper-container"> 
      <ul class="swiper-wrapper">
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0001.jpg"/></figure>
        </li>
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0002.jpg"/></figure>
        </li>
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0003.jpg"/></figure>
        </li>
      </ul>
    </div>
    <div class="carousel_NextBtn"></div> 
    <div class="carousel_PrevBtn"></div> 
  </div> 
</div>

<div class="carousel"> 
  <div class="carousel_Wrapper"> 
    <div class="carousel_Container swiper-container"> 
      <ul class="swiper-wrapper">
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0004.jpg"/></figure>
        </li>
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0005.jpg"/></figure>
        </li>
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0006.jpg"/></figure>
        </li>
      </ul>
    </div>
    <div class="carousel_NextBtn"></div> 
    <div class="carousel_PrevBtn"></div> 
  </div> 
</div>

当应用上述处理时，我认为将生成如下所示的html

<ul class="swiper-wrapper">
  <li class="swiper-slide"> 
    <figure><img alt="" src="https://s3.amazonaws.com/0001.jpg"/></figure>
  </li>
  <li class="swiper-slide"> 
    <figure><img alt="" src="https://s3.amazonaws.com/0002.jpg"/></figure>
  </li>
  <li class="swiper-slide"> 
    <figure><img alt="" src="https://s3.amazonaws.com/0003.jpg"/></figure>
  </li>
</ul>
<div class="carousel_PrevBtn"></div> 

<ul class="swiper-wrapper">
  <li class="swiper-slide"> 
    <figure><img alt="" src="https://s3.amazonaws.com/0004.jpg"/></figure>
  </li>
    <li class="swiper-slide"> 
  <figure><img alt="" src="https://s3.amazonaws.com/0005.jpg"/></figure>
  </li>
    <li class="swiper-slide"> 
  <figure><img alt="" src="https://s3.amazonaws.com/0006.jpg"/></figure>
  </li>
</ul>
<div class="carousel_PrevBtn"></div> 

我们认为必要的处理如下

• 1.检索每个
  
  
• 2.插入
  
  
  对于2，我认为更换没有问题。
  但是我不知道如何实现1。
  
  请说明解决方法

html=“”
















"""
从bs4导入BeautifulSoup
soup=BeautifulSoup（html，'html.parser'）
all_div=soup.find_all（'ul'，{'class'：'swiper wrapper'}）#查找具有指定类的所有ul标记
对于所有分区中的标记：
打印（'--------------迭代：'+str（所有分区索引（标记））+'--------------）
print（tag.find（'li'，{'class'：'swiper slide'}））#此方法仅在项目具有类时有效
print（tag.contents[1]）#如果项目没有类，此方法也可以使用

“检索每个

的第一个

元素的内容”的解决方案可以实现，如上面的代码所示。第二个问题你没有遇到任何问题，所以我还没有发布。如果你在这方面需要任何帮助，请告诉我

html = # First mentioned html

content = BeautifulSoup(html)

content.find('div', class_='carousel_NextBtn').decompose()
content.find('div', class_='carousel').unwrap()
content.find('div', class_='carousel_Wrapper').unwrap()
content.find('div', class_='carousel_Container swiper-container').unwrap()

<ul class="swiper-wrapper">
  <li class="swiper-slide"> 
    <figure><img alt="" src="https://s3.amazonaws.com/0001.jpg"/></figure>
  </li>
  <li class="swiper-slide"> 
    <figure><img alt="" src="https://s3.amazonaws.com/0002.jpg"/></figure>
  </li>
  <li class="swiper-slide"> 
    <figure><img alt="" src="https://s3.amazonaws.com/0003.jpg"/></figure>
  </li>
</ul>
<div class="carousel_PrevBtn"></div> 

<ul class="swiper-wrapper">
  <li class="swiper-slide"> 
    <figure><img alt="" src="https://s3.amazonaws.com/0004.jpg"/></figure>
  </li>
    <li class="swiper-slide"> 
  <figure><img alt="" src="https://s3.amazonaws.com/0005.jpg"/></figure>
  </li>
    <li class="swiper-slide"> 
  <figure><img alt="" src="https://s3.amazonaws.com/0006.jpg"/></figure>
  </li>
</ul>
<div class="carousel_PrevBtn"></div> 

html = """<div class="carousel"> 
  <div class="carousel_Wrapper"> 
    <div class="carousel_Container swiper-container"> 
      <ul class="swiper-wrapper">
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0001.jpg"/></figure>
        </li>
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0002.jpg"/></figure>
        </li>
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0003.jpg"/></figure>
        </li>
      </ul>
    </div>
    <div class="carousel_NextBtn"></div> 
    <div class="carousel_PrevBtn"></div> 
  </div> 
</div>

<div class="carousel"> 
  <div class="carousel_Wrapper"> 
    <div class="carousel_Container swiper-container"> 
      <ul class="swiper-wrapper">
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0004.jpg"/></figure>
        </li>
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0005.jpg"/></figure>
        </li>
        <li class="swiper-slide"> 
          <figure><img alt="" src="https://s3.amazonaws.com/0006.jpg"/></figure>
        </li>
      </ul>
    </div>
    <div class="carousel_NextBtn"></div> 
    <div class="carousel_PrevBtn"></div> 
  </div> 
</div>"""

from bs4 import BeautifulSoup
soup = BeautifulSoup(html, 'html.parser')
all_div = soup.find_all('ul', {'class': 'swiper-wrapper'})  # find all ul tag with specified class
for tag in all_div:
    print('-------------------- iteration : ' + str(all_div.index(tag)) + ' --------------------')
    print(tag.find('li', {'class': 'swiper-slide'}))  # this method works only if your item has class
    print(tag.contents[1])  # this method will also work if your item don't have a class