这里是第一页的爬虫如果想爬第几页就换url如果想全部爬下来的话，for循环就ok
以下是代码：

from bs4 import BeautifulSoup
import requests
import os
 
headers = {
    'User-Agent': "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1",
    'Accept': "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
    'Accept-Encoding': 'gzip',
    "Referer": "https://www.mzitu.com/101553"
}   #头部文件
path="jpg" #jpg为保存目录，可随意更改
os.chdir(path)
 
url = 'https://www.mzitu.com'
response1 = requests.get(url, headers=headers)
html_soup1 = BeautifulSoup(response1.text, 'lxml')
all_url=html_soup1.find("ul",{"id":"pins"}).find_all("a")
count=1
for href in all_url:
    count=count+1
    if count%2!=0:
        href1=href['href']
        #print(href1)
        for href2 in href:
            response2 = requests.get(href1, headers=headers)
            html_Soup2 = BeautifulSoup(response2.text, 'lxml')
            pic_address= html_Soup2.find("div",{"class":"main-image"}).find("img")['src']
            #print(pic_address)
            next_address=html_Soup2.find_all("span")[9]
            max_adress=next_address.get_text()
            name = html_Soup2.find("div", {"class": "main-image"}).find("img")['alt']
            os.mkdir(name)
            os.chdir(name)
            for i  in range (1,int(max_adress)+1):
                #print(i)
                next_url = href1+'/'+str(i)
                response3 = requests.get(next_url, headers=headers)
                html_Soup3 = BeautifulSoup(response3.text, 'lxml')
                pic_address2 = html_Soup3.find("div", {"class": "main-image"}).find("img")['src']
                title = html_Soup3.find("h2")
                name1 = title.get_text()
                img = requests.get(pic_address2, headers=headers)
                f = open(name1 + '.jpg', 'ab')
                f.write(img.content)
                f.close()
            os.chdir("/Users/w2ng/untitled/venv/jpg")#获取自己的工作目录，将/Users/w2ng/untitled/venv 改为os.getcwd()的结果就ok