import re
import json
import requests
from bs4 import BeautifulSoup
import lxml.html
from lxml import etree
result = requests.get('http://example.webscraping.com/places/default/view/Algeria-4')
with open('123.html', 'wb') as f:
f.write(result.content)
# print(parse_regex(result.text))
test_data = """
<div>
<ul>
<li class="item-0"><a href="link1.html" id="places_neighbours__row">9,596,960first item</a></li>
<li class="item-1"><a href="link2.html">second item</a></li>
<li class="item-inactive"><a href="link3.html">third item</a></li>
<li class="item-1"><a href="link4.html" id="places_neighbours__row">fourth item</a></li>
<li class="item-0"><a href="link5.html">fifth item</a></li>
<li class="good-0"><a href="link5.html">fifth item</a></li>
</ul>
<book>
<title lang="aaengbb">Harry Potter</title>
<price id="places_neighbours__row">29.99</price>
</book>
<book>
<title lang="zh">Learning XML</title>
<price>39.95</price>
</book>
<book>
<title>Python</title>
<price>40</price>
</book>
</div>
"""
# //div/ul/li/a[@id] 选取a标签中带有id属性的标签
# //div/ul/li/a 选取所有a标签
# //div/ul/li[2]/a
"""
/ 从根标签开始 必须具有严格的父子关系
// 从当前标签 后续节点含有即可选出
* 通配符 选择所有
//div/book[1]/title 选择div下第一个book标签的title标签
//div/book[1]/tittle[@lang="zh"] 选择div下第一个book标签的title标签并且内容是zh的title标签
//div/book/title //book/title //title 具有相同结果 只不过选取路径不一样
//book/title/@* 将title所有的属性值选出来
//book/title/text() 将title的内容选择出来,使用内置函数
//a[@href="link1.html" and @id="places_neighbours_row"]
//div/book/[last()]/title/text() 将最后一个book元素选出
//div/book[price > 39]/title/text() 将book子标签price数值大于39的选择出来
//li[starts-with(@class,'item')] 将class属性前缀是item的选出来
//title[contains(@lang,"eng")]将title属性lang含有eng关键字的标签选出
"""
html = lxml.html.fromstring(test_data) # 加载任意一个字符串
html_data = html.xpath('//title[contains(@lang,"eng")]') # xpath 查找路径
# print(dir(html_data[0])) # 查看html_data有什么功能
print(html_data)
for i in html_data:
print(i.text)
python 根据标签名获取标签内容
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