Requests库入门
实例:京东商品信息爬取
import requests
try:
r = requests.get('https://item.jd.com/100003717483.html')
r.encoding = r.apparent_encoding
r.status_code
print(r.text[:1000])
except :
print("Error")
爬取亚马逊商品信息
import requests
kv = {"user-agent":"Mozilla/5.0"}
url = "https://www.amazon.cn/gp/product/B01M9A3F2Q/ref=s9_acsd_al_bw_c_x_1_w?pf_rd_m=A1U5RCOVU0NYF2&pf_rd_s=merchandised-search-3&pf_rd_r=PZQ606Z7K5ZSXK47XJ9H&pf_rd_t=101&pf_rd_p=9bfb9c6a-eb8a-43a2-b26d-0939fc900d8e&pf_rd_i=1882011071"
r = requests.get(url, headers = kv)
r.encoding = r.apparent_encoding
print(r.text)
百度搜索关键词提交

import requests
try:
kv = {"wd":"python"}
r = requests.get("http://www.baidu.com/s", params = kv)
print(r.status_code)
except:
print('ERROR')
网络图片的爬取和存储

import requests
url = "http://img0.dili360.com/ga/M00/02/AB/wKgBzFQ26i2AWujSAA_-xvEYLbU441.jpg@!rw9"
path = "word"
r = requests.get(url)
print(r.status_code)
with open(path, "wb") as f:
f.write(r.content)
f.close()

IP地址归属地自动查询

import requests
url = "http://m.ip138.com/ip.asp?ip="
try:
r = requests.get(url + "202.205.174.122")
r.encoding = r.apparent_encoding
print(r.text[-500:])
except:
print("爬取失败")