图片爬取与下载

修改了课堂代码中的path地址，避免了一些错误

url为图片地址

import requests
import os
url = "https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1524146132015&di=5332bbff37f5522d64180096d635e42d&imgtype=0&src=http%3A%2F%2Fimg4.duitang.com%2Fuploads%2Fitem%2F201610%2F07%2F20161007132950_TPGKw.jpeg"
root = "D://pic//"
path = root + str(url.split('/')[-1])[-5:]
try:
	if not os.path.exists(root):
		os.mkdir(root)
	if not os.path.exists(path):
		r = requests.get(url)
		print("status_code = ",r.status_code)
		with open(path, 'wb') as f:
			f.write(r.content)
			f.close()
			print("文件保存成功")
	else:
		print("文件已存在")
except:
	print("爬取失败")