python爬虫办公实例100例_python网络爬虫五个小实例

实例一

爬取京东商品信息

import requests

url="https://item.jd.com/6946605.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")

实例二

爬取亚马逊商品信息

import requests

url="https://www.amazon.cn/gp/product/B07D51Y714"

try:

kv={'user-agent':'Mozailla/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")

实例三

百度搜索

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")

实例四

爬取单张网络图片

import requests

import os

url="http://img0.dili360.com/ga/M00/4A/77/wKgBzFsfM-2ADQ9iAC7rBKt1uIE377.tub.jpg"

root="E:/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")

实例五

IP地址查询

import requests

url="http://www.ip138.com/ips138.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")