通过python将大量文件按修改时间分类的方法

#coding:utf-8import osimport sysimport os.pathimport timefrom shutil import Errorfrom shutil import copystatfrom shutil import copy2path_str = r"D:/pic";def copy_file(src_file, dst_dir): if os.path.isdir(dst_dir):   pass; else:   os.makedirs(dst_dir); print(src_file); print(dst_dir); copy2(src_file, dst_dir) def walk_file(file_path): for root, dirs, files in os.walk(file_path, topdown=False):  for name in files:   com_name = os.path.join(root, name);   t=os.stat(com_name);   copy_path_str = path_str+r"/year"+str(time.localtime(t.st_mtime).tm_year)+r"/month"+str(time.localtime(t.st_mtime).tm_mon);   print(copy_path_str);   copy_file(com_name,copy_path_str);   for name in dirs:   walk_file(name);walk_file(path_str);