Python实现批量下载图片的方法

本文实例讲述了Python实现批量下载图片的方法。分享给大家供大家参考。具体实现方法如下:

#!/usr/bin/env python

#-*-coding:utf-8-*-'

#Filename:download_file.py

import os,sys

import re

import urllib

import urllib2

base_url = 'xxx'

array_url = list()

pic_url = list()

inner_url = list()

def get_array_url(array_url,base_url):

content = urllib.urlopen(base_url).read()

array_url_a = re.findall(r'/rihan.*?.html',content)

for url in array_url_a:

url_a = 'xxx'+url

#print url_a

array_url.append(url_a)

def get_inner_url(array_url,inner_url):

inner_url.append(array_url)

content = urllib.urlopen(array_url[10]).read()

content = content.replace(" ","")

url_a = re.findall(r'<li>.*?</li>',content)

for i in url_a:

url = re.findall(r'ahref=\\'.*?.html\\'target',i)

if len(url)>0:

# print url[0]

url_b = re.sub(r'ahref=\\'','',url[0])

# print url_b

url_c = re.sub(r'\\'target','',url_b)

url_c = 'http://xxx/'+re.sub(r'/.*/','',url_c)

inner_url.append(url_c)

del inner_url[1]

# print inner_url

def get_pic_url(pic_url,inner_url,array_url):

content = urllib.urlopen(array_url).read()

pic_url_a = re.findall(r'center.*?.jpg',content)

print 'bbbbbbbbb',len(pic_url_a)

pic_url_a = re.findall(r'http://.*.jpg',pic_url_a[0])

pic_url.append(pic_url_a[0])

j=2

for i in inner_url:

jj = '/'+str(j)+'.jpg'

pic = re.sub(r'/1.jpg',jj,pic_url_a[0])

pic_url.append(pic)

j = j+1

del pic_url[-1]

for i in pic_url:

print i

def urlcallback(a,b,c):

"""

call back function

a,已下载的数据块

b,数据块的大小

c,远程文件的大小

"""

print "callback"

prec=100.0*a*b/c

if 100 < prec:

prec=100

print "%.2f%%"%(prec,)

def download(img_url,file_num):

for img in img_url:

print img

img_name = re.sub(r'http://.*/','',img)

path = 'C:/'+str(file_num)+'/'+img_name

urllib.urlretrieve(img,path,urlcallback)

get_array_url(array_url,base_url)

file_num = 3

#download(pic_url,file_num)

get_inner_url(url,inner_url)

get_pic_url(pic_url,inner_url,url)

'''

for url in array_url:

print url

# get_inner_url(url,inner_url)

# get_pic_url(pic_url,inner_url)

get_inner_url(url,inner_url)

get_pic_url(pic_url,inner_url,url)

download(pic_url,file_num)

file_num = file_num+1

del inner_url[:]

del pic_url[:]

'''

希望本文所述对大家的Python程序设计有所帮助。

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