url = 'http://pic.netbian.com/4kmeinv/'

import requests
from selenium.webdriver import Chrome,ChromeOptions
import os

 #请求的url
 url = 'http://pic.netbian.com/4kmeinv/'
 #进行伪装
 headers = {
 "User_Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.141 Safari/537.36"
 }
 #发起请求
 response = requests.get(url=url,headers=headers)
 #手动设定响应数据的编码格式
 response.encoding = 'utf-8'
 page_text = response.text
 #这个就是再后台上面运行那个浏览器，不在表面上占用你的
 option = ChromeOptions()
 option.add_argument('--headless')
 option.add_argument("--no-sandbox")
 option.add_experimental_option('excludeSwitches',['enable-automation'])
 #这里也要输入
 browser = Chrome(options=option)
 browser.get(url)

 li = browser.find_elements_by_xpath('//*[@id="main"]/div[3]/ul/li')

 #创建一个文件夹
 if not os.path.exists('./小美女图'):
 os.mkdir('./小美女图')

 for i in li:
 img_src = i.find_element_by_xpath('./a/img').get_attribute('src')
 img_name = i.find_element_by_xpath('./a/img').get_attribute('alt')+'.jpg'

 img_data = requests.get(url=img_src,headers=headers).content
 img_path = '小美女图/'+img_name
 with open(img_path,'wb') as fp:
  fp.write(img_data)
  print(img_name,'下载成功！！！')