使用python os模块复制文件到指定文件夹的方法


						复制一个文件夹的文件到指定目录下





import os

import shutil

import time



start_time = time.time()

# 需要被复制的文件夹



old_path = r'D:\zjf_workspace\001-地标、利器、服饰\004文本\json1'

new_path = r'D:\zjf_workspace\001-地标、利器、服饰\004文本\json'

all_list = os.listdir(old_path)

for i in all_list:

 print(i)

 name, suffix = i.rsplit('.json')

 name = name.replace('.','')

 old_name = old_path + '\\' + i

 new_name = new_path + '\\' + name + ".json"

 shutil.copyfile(old_name, new_name)



print(len(all_list))

print(all_list)

end_time = time.time()

print(end_time-start_time,'秒')





优化速度：





import gevent

from gevent import monkey



monkey.patch_all()

import os

import shutil

import time





def copy_file(i):

 global num

 num += 1

 print(i,num)

 old_path = r'D:\zjf_workspace\001-地标、利器、服饰\004文本\baidu_isbn5\新建文件夹\txt'

 new_path = r'D:\zjf_workspace\001-地标、利器、服饰\004文本\百度isbn-json-非selenium5'

 name, suffix = i.split('.json')

 name = name.replace('.', '')

 old_name = old_path + '\\' + i

 new_name = new_path + '\\' + name + ".json"

 shutil.copyfile(old_name, new_name)





if __name__ == '__main__':



 start_time = time.time()



 # 需要被复制的文件夹

 old_path = r'D:\zjf_workspace\001-地标、利器、服饰\004文本\baidu_isbn5\新建文件夹\txt'

 all_list = os.listdir(old_path)

 gevent_list = []

 num = 1

 key_num = 0

 for i in all_list:

  key_num += 1

  if key_num >= 1500:

   gevent.joinall(gevent_list)

   gevent.killall(gevent_list)

   gevent_list = []

   key_num = 0

  gevent_list.append(gevent.spawn(copy_file, i))

  # print(i)



 print(len(all_list))

 # print(all_list)

 gevent.joinall(gevent_list)

 end_time = time.time()

 print(end_time - start_time, '秒')





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