查询天气信息（Python系列之——爬虫）

在我们生活的每一个天，都有天气（废话！）那我们可以使用Python的BeautifulSoup库就能爬取到天气信息。

1.安装BeautifulSoup与lxml

pip install beautifulsoup4
pip install lxml

2.准备编程

笔者是Python3.11制作的，就拿杭州的信息做：

from bs4 import BeautifulSoup
import requests

url = "http://www.weather.com.cn/weather1d/101210101.shtml"
response = requests.get(url)
response.encoding = "utf-8"
html_doc = response.text

weather_info = {"wea": None, "tem": None, "win": None}
weather = {"daytime": weather_info, "night": weather_info.copy()}
soup = BeautifulSoup(html_doc, "lxml")

print("今日信息：")
wea = soup.select('#today > div.t > ul > li:nth-child(1) > p.wea')
print("天气："+wea[0].string)
weather['daytime']['wea'] = wea[0].string


tem = soup.select('#today > div.t > ul > li:nth-child(1) > p.tem > span')
print("温度："+tem[0].string+"℃")
weather['daytime']['tem'] = tem[0].string


win = soup.select('#today > div.t > ul > li:nth-child(1) > p.win > span')
print("风力："+win[0].string)
weather['daytime']['win'] = win[0].string


print("\n明日信息：")

wea = soup.select('#today > div.t > ul > li:nth-child(2) > p.wea')
print("天气："+wea[0].string)
weather['night']['wea'] = wea[0].string


tem = soup.select('#today > div.t > ul > li:nth-child(2) > p.tem > span')
print("温度："+tem[0].string+"℃")
weather['night']['tem'] = tem[0].string


win = soup.select('#today > div.t > ul > li:nth-child(2) > p.win > span')
print("风力："+win[0].string)
weather['night']['win'] = win[0].string

如果是别的地区，就可以把第4行url的值改动，如北京和深圳的：

# 北京
url = "http://www.weather.com.cn/weather1d/101010100.shtml"
# 深圳
url = "http://www.weather.com.cn/weather1d/101280601.shtml"

3.本章的结尾

看在作者写了这么多代码的份上，给个点赞呗！