目标：

分析同上篇文章：

这里快速跳转！

代码如下：（简单易懂方便！）

import requests
import re
import os
#动态加载的图片的抓取  （1）分析动态网页的规律  拿下来做对比，发现pn是可变的有规律的   （2）构造pn值  获取相应的page_url(每个包含30张图片)
img_1="https://image.baidu.com/search/acjson?tn=resultjson_com&ipn=rj&ct=201326592&is=&fp=result&queryWord=%E7%BE%8E%E5%A5%B3&cl=2&lm=-1&ie=utf-8&oe=utf-8&adpicid=&st=-1&z=&ic=0&hd=&latest=&copyright=&word=%E7%BE%8E%E5%A5%B3&s=&se=&tab=&width=&height=&face=0&istype=2&qc=&nc=1&fr=&expermode=&force=&cg=girl&pn=30&rn=30&gsm=1e&1586609758663="
img_2="https://image.baidu.com/search/acjson?tn=resultjson_com&ipn=rj&ct=201326592&is=&fp=result&queryWord=%E7%BE%8E%E5%A5%B3&cl=2&lm=-1&ie=utf-8&oe=utf-8&adpicid=&st=-1&z=&ic=0&hd=&latest=&copyright=&word=%E7%BE%8E%E5%A5%B3&s=&se=&tab=&width=&height=&face=0&istype=2&qc=&nc=1&fr=&expermode=&force=&cg=girl&pn=60&rn=30&gsm=3c&1586609758847="
img_3="https://image.baidu.com/search/acjson?tn=resultjson_com&ipn=rj&ct=201326592&is=&fp=result&queryWord=%E7%BE%8E%E5%A5%B3&cl=2&lm=-1&ie=utf-8&oe=utf-8&adpicid=&st=-1&z=&ic=0&hd=&latest=&copyright=&word=%E7%BE%8E%E5%A5%B3&s=&se=&tab=&width=&height=&face=0&istype=2&qc=&nc=1&fr=&expermode=&force=&cg=girl&pn=90&rn=30&gsm=5a&1586609775289="

page_url="https://image.baidu.com/search/acjson?tn=resultjson_com&ipn=rj&ct=201326592&is=&fp=result&queryWord=%E7%BE%8E%E5%A5%B3&cl=2&lm=-1&ie=utf-8&oe=utf-8&adpicid=&st=-1&z=&ic=0&hd=&latest=&copyright=&word=%E7%BE%8E%E5%A5%B3&s=&se=&tab=&width=&height=&face=0&istype=2&qc=&nc=1&fr=&expermode=&force=&cg=girl&pn={}&rn=30&gsm=1e&1586609758663="

# 第一部分：获取包含这些图片的网页的代码
for i in range(1,4):
    # 将图片扔到件夹里
    dir="img"+str(i)
    if not os.path.exists(dir):
        os.mkdir(dir)

    url=page_url.format(i*30)
    res=requests.get(url)
    html = res.text
    #第二部分：利用正则锁定我们所要爬取的图片的url
    img_urls = re.findall('thumbURL":"(.*?)"',html)
    print(img_urls)
    #第三部分： 遍历对每个猫咪url发起请求
    for index, img_url in enumerate(img_urls):
        if "\\" in img_url:
            img_url = img_url.replace("\\","")
        res = requests.get(img_url)
        img_data = res.content
        filename = dir + "/" + str(index) + ".jpg"
        with open(filename, "wb") as f:
            f.write(img_data)