本文实例讲述了python实现爬取百度图片的方法。分享给大家供大家参考，具体如下：
import json
import itertools
import urllib
import requests
import os
import re
import sys
word=input("请输入关键字：")
path="./ok"
if not os.path.exists(path):
os.mkdir(path)
word=urllib.parse.quote(word)
url = r"http://image.baidu.com/search/acjson?tn=resultjson_com&ipn=rj&ct=201326592&fp=result&queryWord={word}&cl=2&lm=-1&ie=utf-8&oe=utf-8&st=-1&ic=0&word={word}&face=0&istype=2nc=1&pn={pn}&rn=60"
urls=(url.format(word=word,pn=x)for x in itertools.count(start=0,step=60))
index=0
str_table = {
'_z2C$q': ':',
'_z&e3B': '.',
'AzdH3F': '/'
}
char_table = {
'w': 'a',
'k': 'b',
'v': 'c',
'1': 'd',
'j': 'e',
'u': 'f',
'2': 'g',
'i': 'h',
't': 'i',
'3': 'j',
'h': 'k',
's': 'l',
'4': 'm',
'g': 'n',
'5': 'o',
'r': 'p',
'q': 'q',
'6': 'r',
'f': 's',
'p': 't',
'7': 'u',
'e': 'v',
'o': 'w',
'8': '1',
'd': '2',
'n': '3',
'9': '4',
'c': '5',
'm': '6',
'0': '7',
'b': '8',
'l': '9',
'a': '0'
}
i=1
char_table = {ord(key): ord(value) for key, value in char_table.items()}
for url in urls:
html=requests.get(url,timeout=10).text
a=re.compile(r'"objURL":"(.*?)"')
downURL=re.findall(a,html)
for t in downURL:
for key, value in str_table.items():
t = t.replace(key, value)
t=t.translate(char_table)
try:
html_1=requests.get(t)
if str(html_1.status_code)[0]=="4":
print('失败1')
continue
except Exception as e:
print('失败2')
continue
with open(path+"/"+str(i)+".jpg",'wb') as f:
f.write(html_1.content)
i=i+1