Python实现批量下载图片的方法_Python

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：
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									#!/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。
Python实现批量下载图片的方法

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