Python3批量爬取網頁圖片

  所謂爬取其實就是獲取連接的內容保存到本地。因此爬以前須要先知道要爬的連接是什麼。python

 

  要爬取的頁面是這個:http://findicons.com/pack/2787/beautiful_flat_iconsweb

 

裏面有不少不錯的圖標,目標就是把這些文件圖片爬下來,保存成本地圖片。app

 

 

用python3怎麼作呢?url

 

第一步:獲取要爬取的母網頁的內容spa

import urllib.request
import re

url = "http://findicons.com/pack/2787/beautiful_flat_icons"
webPage=urllib.request.urlopen(url)
data = webPage.read()
data = data.decode('UTF-8')

 

第二步:對母網頁內容處理,提取出裏面的圖片連接3d

k = re.split(r'\s+',data)
s = []
sp = []
si = []
for i in k :
    if (re.match(r'src',i) or re.match(r'href',i)):
        if (not re.match(r'href="#"',i)):
            if (re.match(r'.*?png"',i) or re.match(r'.*?ico"',i)):
                if (re.match(r'src',i)):
                    s.append(i)

for it in s :
    if (re.match(r'.*?png"',it)):
        sp.append(it)

 

第三步:獲取這些圖片連接的內容,並保存成本地圖片code

cnt = 0
cou = 1
for it in sp:
    m = re.search(r'src="(.*?)"',it)
    iturl = m.group(1)
    print(iturl)
    if (iturl[0]=='/'):
        continue;
    web = urllib.request.urlopen(iturl)
    itdata = web.read()
    if (cnt%3==1 and cnt>=4 and cou<=30):
        f = open('d:/pythoncode/simplecodes/image/'+str(cou)+'.png',"wb")
        cou = cou+1
        f.write(itdata)
        f.close()
        print(it)
    cnt = cnt+1

 

保存目錄能夠自行設定。blog

 

如下是綜合起來的代碼:圖片

import urllib.request
import re

url = "http://findicons.com/pack/2787/beautiful_flat_icons"
webPage=urllib.request.urlopen(url)
data = webPage.read()
data = data.decode('UTF-8')

k = re.split(r'\s+',data)
s = []
sp = []
si = []
for i in k :
    if (re.match(r'src',i) or re.match(r'href',i)):
        if (not re.match(r'href="#"',i)):
            if (re.match(r'.*?png"',i) or re.match(r'.*?ico"',i)):
                if (re.match(r'src',i)):
                    s.append(i)

for it in s :
    if (re.match(r'.*?png"',it)):
        sp.append(it)

cnt = 0
cou = 1
for it in sp:
    m = re.search(r'src="(.*?)"',it)
    iturl = m.group(1)
    print(iturl)
    if (iturl[0]=='/'):
        continue;
    web = urllib.request.urlopen(iturl)
    itdata = web.read()
    if (cnt%3==1 and cnt>=4 and cou<=30):
        f = open('d:/pythoncode/simplecodes/image/'+str(cou)+'.png',"wb")
        cou = cou+1
        f.write(itdata)
        f.close()
        print(it)
    cnt = cnt+1
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