import os
folder = r"C:\Temp"
fname = "test.txt"
fpath = os.path.join(folder,fname)
print("file path:", fpath)
lis = fpath.split("\\")
#['C:', 'Temp', 'test.txt']
fpath2 = "\\".join(lis)
print("file path2:", fpath2)
folder2 = "\\".join(lis[0:-1])
print("folder2:", folder2)![Python: 如何將folder_name, file_name合併為file_path? fpath = os.path .join(folder, fname) ; "\".join([folder, fname]) ; 如何將file_path拆分出folder? - 儲蓄保險王](https://savingking.com.tw/wp-content/uploads/2023/03/20230330132954_84.png)
“\\”.join([folder, fname]) #這樣也可以取代 os.path.join()
![Python: 如何將folder_name, file_name合併為file_path? fpath = os.path .join(folder, fname) ; "\".join([folder, fname]) ; 如何將file_path拆分出folder? - 儲蓄保險王](https://savingking.com.tw/wp-content/uploads/2023/03/20230330135354_83.png)
if not os.path.exists(ex_folder): os.makedirs(ex_folder):
![Python: 如何將folder_name, file_name合併為file_path? fpath = os.path .join(folder, fname) ; "\".join([folder, fname]) ; 如何將file_path拆分出folder? - 儲蓄保險王](https://savingking.com.tw/wp-content/uploads/2023/03/20230330134700_36.png)
C:\Temp 目錄底下新增了export 資料夾
![Python: 如何將folder_name, file_name合併為file_path? fpath = os.path .join(folder, fname) ; "\".join([folder, fname]) ; 如何將file_path拆分出folder? - 儲蓄保險王](https://savingking.com.tw/wp-content/uploads/2023/03/20230330134750_27.png)
推薦hahow線上學習python: https://igrape.net/30afN


![Python: pandas.DataFrame 如何對某些欄做格式化字串? apply(); applymap() ; map() 的差別? df[‘Salary’] = df[‘Salary’].map( ‘${:,.2f}’ .format) Python: pandas.DataFrame 如何對某些欄做格式化字串? apply(); applymap() ; map() 的差別? df[‘Salary’] = df[‘Salary’].map( ‘${:,.2f}’ .format)](https://i2.wp.com/savingking.com.tw/wp-content/uploads/2023/05/20230527091636_49.png?quality=90&zoom=2&ssl=1&resize=350%2C233)







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