Finally solved the file redirection problem

""" 
Use python to obtain the specified type of file excel in a certain path folder and subfolders in batches, and store them according to the specified path 
""" 

import os 
import os 
import win32com.client as win32 
import shutil 


filelist_same = [] 

path_same_head = os .getcwd() 
path_same_rear ='bak' 

path_same = path_same_head +'/' + path_same_rear 


os.chdir(path_same) #If you want to solve the opening of the targeted folder content, you need to redirect to the specified folder first 

myfile = '2.xlsx' 


if os.path.exists(myfile): //The rest is very simple, judge whether there are the same files, use the exists method to reduce the pressure of using for loop 
    print(myfile) 








''' 



#### ########Folder before conversion 
filelist_trans = [] 
path_trans = os.getcwd() #File directory where the program is located before conversion 
print(path_trans) 
pathlist_trans = os.listdir(path_trans)
print(pathlist_trans) 



 
###########Folder to be synchronized

filelist_same = [] 

path_same_head = os.getcwd() 
path_same_rear ='bak' 

path_same = path_same_head +'/' + path_same_rear 


print(path_same) 
pathlist_same = os.listdir(path_same_s0) 


print(pathlist, path_same) 1],pathlist_same[2]) 
#print(os.listdir(str(pathlist_same))) 









############Replaced folder 


filelist_scan = [] 
path_scan = str(os.getcwd() ) +'/bak/' 
print(path_scan) 
pathlist_same = os.listdir(path_trans) 







for trans in pathlist_trans: 
    filelist_trans = os.path.join(path_trans, trans) # Add the file name to the current file path 
    if os.path .isfile(filelist_trans): # If it is a file
        if os.path.splitext(filelist_trans)[1] == ".xls": # If the file is with the suffix ".xls" 
            for same in pathlist_same:
                filelist_same = os.path.join(path_same, same) # Add the file name to the back of the current file path 
'''