Python爬虫抓取网页图片
通过python 来实现这样一个简单的爬虫功能,把我们想要的图片爬取到本地。
下面使用python来实现这样一个功能。
# -*- coding: utf-8 -*-
""" 爬取图片 """
import urllib
import re
import time
import os
# 显示下载进度
def schedule(a, b, c):
'''''
a:已经下载的数据块
b:数据块的大小
c:远程文件的大小
'''
per = 100.0 * a * b / c
if per > 100:
per = 100
print '%.2f%%' % per
def getHtml(url):
page = urllib.urlopen(url)
html = page.read()
return html
def downloadImg(html):
reg = r'src="(.+?\.jpg)" pic_ext'
imgre = re.compile(reg)
imglist = re.findall(imgre, html)
# 定义文件夹的名字
t = time.localtime(time.time())
foldername = str(t.__getattribute__("tm_year")) + "-" + str(t.__getattribute__("tm_mon")) + "-" + str(
t.__getattribute__("tm_mday"))
picpath = 'C:\\Users\\Administrator\\PycharmProjects\\pythonProject\\1\\2\\%s' % (foldername) # 下载到的本地目录
if not os.path.exists(picpath): # 路径不存在时创建一个
os.makedirs(picpath)
x = 0
for imgurl in imglist:
target = picpath + '\\%s.jpg' % x
print 'Downloading image to location: ' + target + '\nurl=' + imgurl
image = urllib.urlretrieve(imgurl, target, schedule)
x += 1
return image;
if __name__ == '__main__':
print ''' *************************************
** Welcome to use Spider **
** Created on 2021-06-01 **
** @author: cruise **
*************************************'''
html = getHtml("http://tieba.baidu.com/p/2460150866")
downloadImg(html)
print "Download has finished."
转载自https://blog.csdn.net/cruise_h/article/details/25737737