爬取该网页https://www.gupang.com/202305/64619.html
时间: 2023-06-21 12:04:26 浏览: 56
为了爬取该网页,我们需要使用 Python 中的 requests 和 BeautifulSoup 库。
以下是示例代码:
```python
import requests
from bs4 import BeautifulSoup
url = 'https://www.gupang.com/202305/64619.html'
response = requests.get(url)
soup = BeautifulSoup(response.content, 'html.parser')
# 获取文章标题
title = soup.find('h1', class_='title').text.strip()
print(title)
# 获取文章内容
content = soup.find('div', class_='post_content').text.strip()
print(content)
```
执行以上代码后,将会输出该网页的标题和内容。你可以根据需要对代码进行修改。需要注意的是,网站的反爬虫机制可能会限制访问频率,因此请遵守网站的相关规定。
相关问题
优化这段代码import requests from bs4 import BeautifulSoup url = "https://www.gupang.com/202305/64619.html" response = requests.get(url) soup = BeautifulSoup(response.content, "html.parser") title = soup.find("h1", class_="title").text content = soup.find("div", class_="content").text print(title) print(content)
可以使用以下方法进行优化:
1. 添加异常处理,以防止请求失败或解析失败导致程序崩溃:
```python
import requests
from bs4 import BeautifulSoup
url = "https://www.gupang.com/202305/64619.html"
try:
response = requests.get(url)
response.raise_for_status() # 抛出异常,如果请求失败
except requests.exceptions.RequestException as e:
print(e)
sys.exit(1)
soup = BeautifulSoup(response.content, "html.parser")
try:
title = soup.find("h1", class_="title").text
content = soup.find("div", class_="content").text
except AttributeError as e:
print(e)
sys.exit(1)
print(title)
print(content)
```
2. 使用`with`语句来管理资源,以确保在使用完文件或网络连接后自动释放资源:
```python
import requests
from bs4 import BeautifulSoup
url = "https://www.gupang.com/202305/64619.html"
try:
with requests.get(url) as response:
response.raise_for_status()
soup = BeautifulSoup(response.content, "html.parser")
title = soup.find("h1", class_="title").text
content = soup.find("div", class_="content").text
except (requests.exceptions.RequestException, AttributeError) as e:
print(e)
sys.exit(1)
print(title)
print(content)
```
这种方法可以避免手动关闭连接或文件,而且代码更加简洁。
PS D:\MyPython> & "C:/Program Files/Python39/python.exe" d:/MyPython/Crawler/Gupang.py 'NoneType' object has no attribute 'text' Traceback (most recent call last): File "d:\MyPython\Crawler\Gupang.py", line 10, in <module> title = soup.find("h1", class_="title").text AttributeError: 'NoneType' object has no attribute 'text' During handling of the above exception, another exception occurred: Traceback (most recent call last): File "d:\MyPython\Crawler\Gupang.py", line 14, in <module> sys.exit(1) NameError: name 'sys' is not defined
这个错误提示显示你的代码出现了两个错误。第一个错误是 `'NoneType' object has no attribute 'text'`,这通常是因为 `soup.find()` 方法没有找到要查找的标签。所以你需要检查一下你的 `soup.find()` 方法是否正确找到了标签。
第二个错误是 `NameError: name 'sys' is not defined`,这是因为你在代码中使用了 `sys.exit()` 方法,但是你没有导入 `sys` 模块。所以你需要在代码开头添加 `import sys`。
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