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’.*?’,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。