案例1：京东商品页面的爬取

商品链接

import requests url = "https://item.jd.com/2967929.html" try: r = requests.get(url) r.raise_for_status() r.encoding = r.apparent_encoding print(r.text[:1000]) except: print("爬取失败")

案例2：亚马逊商品页面的爬取

商品链接

import requests url = "https://www.amazon.cn/gp/product/B01M8L5Z3Y" try: kv = {'user-agent':'Mozilla/5.0'} r = requests.get(url, headers = kv) r.raise_for_status() r.encoding = r.apparent_encoding print(r.text[1000:2000]) except: print("爬取失败")

案例3：百度360关键词提交

搜索引擎关键词提交接口

百度的关键词接口：http://www.baidu.com/s?wd=keyword
360的关键词接口：http://www.so/com/s?q=keyword

import requests keyword = "Python" try: kv = {'wd':keyword} r = requests.get("http://www.baidu.com/s",params=kv) print(r.request.url) r.raise_for_status() print(len(r.text)) except: print("爬取失败")

import requests keyword = "Python" try: kv = {'q':keyword} r = requests.get("http://www.so.com/s",params=kv) print(r.request.url) r.raise_for_status() print(len(r.text)) except: print("爬取失败")

案例4：网络图片的爬取和存储

网络图片链接的格式：http://www.example.com/picture.jpg
国家地理
选择一个图片Web页面：
http://www.nationalgeographic.com.cn/photography/photo_of_the_day/3921.html
该图片地址：http://image.nationalgeographic.com.cn/2017/0211/20170211061910157.jpg

import requests import os url = "http://image.nationalgeographic.com.cn/2017/0211/20170211061910157.jpg" root = "D://pics//" path = root + url.split('/')[-1] try: if not os.path.exists(root): os.mkdir(root) if not os.path.exists(path): r = requests.get(url) with open(path, 'wb') as f: f.write(r.content) f.close() print("文件保存成功") else: print("文件已存在") except: print("爬取失败")

案例5：IP地址归属地的自动查询

http://m.ip138.com/ip.asp?ip=ipaddress

import requests url = "http://m.ip138.com/ip.asp?ip=" try: r = requests.get(url + '202.204.80.112') r.raise_for_status() r.encoding = r.apparent_encoding print(r.text[-500:]) except: print("爬取失败")

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