爬虫是获取网络数据的重要工具，Python因其丰富的库生态系统而成为爬虫开发的首选语言。下面我将详细介绍Python爬虫的常用技术和方案。
一、基础技术栈
1. 请求库
Requests - 同步HTTP请求库
import requests# 基本GET请求
response = requests.get('https://httpbin.org/get')
print(response.status_code)
print(response.text)# 带参数的请求
params = {'key1': 'value1', 'key2': 'value2'}
response = requests.get('https://httpbin.org/get', params=params)# 带请求头的请求
headers = {'User-Agent': 'Mozilla/5.0'}
response = requests.get('https://httpbin.org/get', headers=headers)# POST请求
data = {'key': 'value'}
response = requests.post('https://httpbin.org/post', data=data)aiohttp - 异步HTTP请求库
import aiohttp
import asyncioasync
)
