Python 实现输入名字自动批量下载图片

import requests
import os
import re

word=input("请输入你要下载的图片:")
if not os.path.exists(word):
    os.mkdir(word)
url="https://image.baidu.com/search/flip?tn=baiduimage&ie=utf-8&word="+word+""
result=re.findall('"objURL":"(.*?)",',ret)
for i in result:   
    end=re.search('(.jpg|.png|.gif|.jpeg)$',i)#判断是否以该格式结尾
if end == None:
    i=i+'.jpg'
try:
    with open(word+'/%s'%i[-10:],'ab') as f:
        img=requests.get(i,timeout=3)
        f.write(img.content)
except Exception as e:
    print(e)