使用 BeautifulSoup 查找具有两种特定样式的标签

问题描述

我正在尝试使用 Python2.7 中的 BeautifulSoup (bs4) 包在 html 文档中查找以下标记:

I am trying to use the BeautifulSoup (bs4) package in Python2.7 to find the following tag in an html document:

<div style="position:absolute; border: textbox 1px solid; writing-mode:lr-tb; left:408px; top:540px; width:14px; height:9px;"><span style="font-family: OEULZL+ArialMT; font-size:9px">0.00<br></span></div>

在 html 文档中有多个几乎完全相同的其他标签——唯一一致的区别是left:408px"和height:9px"属性.

In the html document there are multiple other tags that are almost exactly identical - the only consistently difference is the "left:408px" and the "height:9px" attributes.

我如何使用 BeautifulSoup 找到这个标签?

How can i find this tag using BeautifulSoup?

我尝试了以下方法:

from bs4 import BeautifulSoup as bs

soup = bs("<div style="position:absolute; border: textbox 1px solid; writing-mode:lr-tb; left:408px; top:540px; width:14px; height:9px;"><span style="font-family: OEULZL+ArialMT; font-size:9px">0.00<br></span></div>", 'html.parser')

soup.find_all('div', style=('left:408px' and 'height:9px'))
soup.find_all('div', style=('left:408px') and style=('height:9px')) #doesn't like style being used twice
soup.find_all('div', {'left':'408px' and 'height':'9px'})
soup.find_all('div', {'left:408px'} and {'height:9px'})
soup.find_all('div', style={'left':'408px' and 'height':'9px'})
soup.find_all('div', style={'left:408px'} and {'height:9px'})

有什么想法吗?

推荐答案

可以查看style有left:408px和height:9px里面:

soup.find('div', style=lambda value: value and 'left:408px' in value and 'height:9px' in value)

或者:

import re
soup.find('div', style=re.compile(r'left:408px.*?height:9px'))

或者:

soup.select_one('div[style*="408px"]')

请注意，一般来说，样式属性用于定位元素并不可靠.查看是否还有其他内容 - 检查父元素、兄弟元素，或者元素附近是否有相应的标签.

Note that, in general, style properties are not reliable to use for locating elements. See if there is anything else - check the parent, sibling elements, or may be there is a corresponding label near the element.

请注意，更合适的 CSS 选择器应该是 div[style*="left:408px"][style*="height:9px"]，但由于 有限的 CSS 选择器支持 和 这个错误，它不会按原样工作.

Note that, a more appropriate CSS selector would be div[style*="left:408px"][style*="height:9px"], but because of the limited CSS selector support and this bug, it is not gonna work as is.

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