Python 在两个未测试的标签之间刮掉所有东西

有可能在两个未测试的标签之间刮掉所有东西吗

例如：

<h3>Title 1<h3>
<div class="div">
    <span class="span">span1</span>
    <label class="label">label1</label>
</div>
<div class="div">
    <span class="span">span2</span>
</div>
<h3>Title 2<h3>
<div class="div">
    <span class="span">span3</span>
    <label class="label">label2</label>
</div>
<div id="div">
    <span id="span">span4</span>
</div>

现在我得到：

span1
span2
span3
span4

我想得到：

span1
span2

---

我不知道这是否是这个问题的最佳解决方案，但你可以分割你的文本，只刮你需要的部分

text = """
<h3>Title 1</h3>
<div class="div">
    <span class="span">span1</span>
    <label class="label">label1</label>
</div>
<div class="div">
    <span class="span">span2</span>
</div>
<h3>Title 2</h3>
<div class="div">
    <span class="span">span3</span>
    <label class="label">label2</label>
</div>
<div id="div">
    <span id="span">span4</span>
</div>
"""

sub_text = text.split(soup.find('h3', text="Title 2").string)[0]

一种方法是：

找到第二个

class=“span”

，然后向后导航，然后单击

div

标记的顺序是倒序的，因此请使用函数

查找

标记

---

---

美丽的汤为您生成一个树形结构。您可以确定上下文对您很重要的那两个子项，并在父项的子项中从一个迭代到另一个。

text = """
<h3>Title 1</h3>
<div class="div">
    <span class="span">span1</span>
    <label class="label">label1</label>
</div>
<div class="div">
    <span class="span">span2</span>
</div>
<h3>Title 2</h3>
<div class="div">
    <span class="span">span3</span>
    <label class="label">label2</label>
</div>
<div id="div">
    <span id="span">span4</span>
</div>
"""

sub_text = text.split(soup.find('h3', text="Title 2").string)[0]

'"\n<h3>Title 1</h3>\n<div class="div">\n    <span class="span">span1</span>\n    <label class="label">label1</label>\n</div>\n<div class="div">\n    <span class="span">span2</span>\n</div>\n<h3>'

scrape_me = BeautifulSoup(sub_text, 'lxml')

for i in scrape_me.findAll("div", class_="div"):
    print(i.span.text)
# -> span1 span2

from bs4 import BeautifulSoup

html = """
<h3>Title 1<h3>
<div class="div">
    <span class="span">span1</span>
    <label class="label">label1</label>
</div>
<div class="div">
    <span class="span">span2</span>
</div>
<h3>Title 2<h3>
<div class="div">
    <span class="span">span3</span>
    <label class="label">label2</label>
</div>
<div id="div">
    <span id="span">span4</span>
</div>
"""
soup = BeautifulSoup(html, "lxml")

for tag in reversed(
    soup.select_one("div:nth-of-type(2) span.span").find_all_previous("div")
):
    print(tag.find("span").text)

span1
span2