实例1:京东商品页面的爬取
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")
实例2:亚马逊商品页面的爬取
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")
实例3:百度/360搜索关键字提交
import requests
keyword="Python"
try:
kv={‘q‘: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")
实例4:网络图片的爬取和存储
import requests
import os
url="http://image.nationalgeographic.com.cn/2017/0211/20170211061910157.jpg"
root="D://pics"
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")
实例5:IP地址归属地的自动查询
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")