爬mei紫图

 

新手上路

 

# -*- coding: utf-8 -*-
"""
Created on Mon Jan 14 18:23:10 2019

@author: Administrator
"""

import requests
from bs4 import BeautifulSoup
import re


#url="https://www.mzitu.com/169451"

my_referer = r'https://www.mzitu.com/169451'



#为了获得图片链接,暂时不需要了，因为链接可以生成
'''
r=requests.get(url,headers={'referer':my_referer})
r.encoding=r.apparent_encoding
html=r.content
soup=BeautifulSoup(html,"html.parser")
s=soup.select("div p a")[0].img["src"]
'''

#从链接总获得图片




#s=soup.select(".article-content")

#type(s[0])
#Out[18]: bs4.element.Tag

#t=s[0].get_text()


#f=open("d:/测试解析文档学习.html","w",encoding="utf-8")
#f.write(str(s))
'''
a='https://i.meizitu.net/2019/01/13d'

b="https://i.meizitu.net/2018/12/29d"

c="https://i.meizitu.net/2017/01/01b"
d="https://i.meizitu.net/2017/01/02b"
ls=[]
ls=[a,b,c,d]
'''





"""
p1=["0"+str(i) for i in range(1,10)]    #快速列表生成器
p1.append("10","11","12")  
"""


 
p="https://i.meizitu.net/2018/"     #2018



p0=["0"+str(i) for i in range(1,10)]+[str(i) for i in range(10,13)]   #月





p1=["0"+str(i) for i in range(1,10)]+[str(i) for i in range(10,32)]   #产生31天                                  #1-31天
    
    
#p2=[chr(i) for i in range(97,123)]          #百度python生成a-z

#        for j in p2:

#经过分析大多数图片都是 https://i.meizitu.net/2018/12/28a01.jpg 末尾的字母主要是 a b c 所以，为了效率，节省点时间吧
p2=["a","b","c"]


url_day=[]
for k in p0:    
    for i in p1:
            url_day.append(p+k+'/'+i)     #产生某一天


#这样遍历的全年的不太好用，还不如老老实实爬某一个月的
"""
p12="https://i.meizitu.net/2018/10/"
url_Nov=[]
for k in p1:    
    for i in p2: 
         url_Nov.append(p12+k+i)


"""


def downloud(url):
    for j in p2:
        for i in range(1,60):
            if i<10:
                link=url+j+"0"+str(i)+".jpg"
            else:
                link=url+j+str(i)+".jpg"
                
            
            try:
                r1=requests.get(link,timeout=0.1,headers={'referer':my_referer})
                r1.raise_for_status()
                html1=r1.content
                #ss=str(i)
                f=open("f:/爬虫生成文件/图片a-c/"+link[-17:-4].replace("/","")+".jpg","wb")
                f.write(html1)
                f.close()
            except:
                print("不存在:","{:^10}".format(link))            
                break
            

def main():
    for i in range(len(url_day)):
        downloud(url_day[i])


main()







"""



def main():
    for i in url_Nov[:200]:
        downloud(i)    
        
"""


"""

对空文件测试
x
Out[107]: 'https://i.meizitu.net/2018/12/12o1'

r1=requests.get(x,headers={'referer':my_referer})

r1
Out[109]: <Response [404]>


明白了这里必须要加上try except ,,raisefor status的原因了



url[-11:].replace("/","")
"""         
       

        

 

转载于:https://www.cnblogs.com/xinqidian/p/10271230.html