python爬虫爬取天津天气数据

您可以使用Python编写爬虫来获取天津的天气数据。以下是一个示例代码：

import requests
from bs4 import BeautifulSoup

def get_tianjin_weather():
    url = "http://www.weather.com.cn/weather/101030100.shtml"
    headers = {
        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36"
    }
    response = requests.get(url, headers=headers)
    response.encoding = 'utf-8'
    
    soup = BeautifulSoup(response.text, 'html.parser')
    # 获取天气信息
    weather_info = soup.find('ul', class_='t').find_all('li')
    
    # 提取数据
    temperature = weather_info[0].find('span').get_text()
    weather = weather_info[1].get_text()
    wind = weather_info[2].get_text()
    
    return temperature, weather, wind

# 调用函数获取天津的天气数据
temperature, weather, wind = get_tianjin_weather()
print("天津天气：")
print("温度：", temperature)
print("天气：", weather)
print("风力：", wind)

请确保在运行代码之前安装了`requests`和`beautifulsoup4`库。这个示例代码会请求天津天气网站(http://www.weather.com.cn/weather/101030100.shtml)，然后使用BeautifulSoup库解析网页内容，提取所需的天气数据并打印输出。