python+selenium+chrome如何实现批量文件下载并自动创建文件夹

def getDriverHttp():
 for i in range(reCount):
  # 创建Chrome浏览器配置对象实例
  chromeOptions = webdriver.ChromeOptions()
  # 设定下载文件的保存目录为d盘的tudi目录，
  # 如果该目录不存在，将会自动创建
  prefs = {"download.default_directory": "e:\\tudi\\{0}".format(data[i][0]), "profile.default_content_setting_values.automatic_downloads":1}
  # 将自定义设置添加到Chrome配置对象实例中
  chromeOptions.add_experimental_option("prefs", prefs)
  # 启动带有自定义设置的Chrome浏览器
  # driver = webdriver.Chrome(executable_path="e:\\chromedriver", chrome_options=chromeOptions)
  driver = webdriver.Chrome(chrome_options=chromeOptions)
 
  driver.get(data[i][1])
 
  info2 = re.findall(r'<a href="#" rel="external nofollow" onclick="(.*&#63;)" cssclass="xz_pic">', driver.page_source, re.S)
  print(len(info2))
  for js in info2:
   driver.execute_script(js)
 
def main():
 getDriverHttp()

import numpy as np
from easydict import EasyDict as edict
import yaml
 
# 创建dict
__C = edict()
cfg = __C
 
# 定义配置dict
__C.dev = edict()
__C.dev.name = 'dev-xingoo'
__C.dev.age = 20
 
__C.test = edict()
__C.test.name = 'test-xingoo'
__C.test.age = 30
 
# 内部方法，实现yaml配置文件到dict的合并
def _merge_a_into_b(a, b):
 """Merge config dictionary a into config dictionary b, clobbering the
 options in b whenever they are also specified in a.
 """
 if type(a) is not edict:
  return
 
 for k, v in a.items():
  # a must specify keys that are in b
  if k not in b:
   raise KeyError('{} is not a valid config key'.format(k))
 
  # the types must match, too
  old_type = type(b[k])
  if old_type is not type(v):
   if isinstance(b[k], np.ndarray):
    v = np.array(v, dtype=b[k].dtype)
   else:
    raise ValueError(('Type mismatch ({} vs. {}) '
        'for config key: {}').format(type(b[k]),
               type(v), k))
 
  # recursively merge dicts
  if type(v) is edict:
   try:
    _merge_a_into_b(a[k], b[k])
   except:
    print(('Error under config key: {}'.format(k)))
    raise
  else:
   b[k] = v
# 自动加载yaml文件
def cfg_from_file(filename):
 """Load a config file and merge it into the default options."""
 with open(filename, 'r', encoding='utf-8') as f:
  yaml_cfg = edict(yaml.load(f))
 
 _merge_a_into_b(yaml_cfg, __C)

from config import cfg_from_file
from config import cfg
 
cfg_from_file('config.yml')
print(cfg.dev.name)
print(cfg.test.name)

class Config:
 def __init__(self):
  self.name = 'xingoo-config2'
  self.age = 100

import config2 as config2
 
cfg2 = config2.Config()
print(cfg2.name)
print(cfg2.age)