python os.chdir()的使用

import os

os.chdir('G:/阿里云盘/音乐/')

datanames = os.listdir()

print(datanames)

for file in datanames:

    if ' - ' in file:

        new_name = file.replace(' - ', '')  

        os.rename(file, new_name)

        print(file + '  已改为  ' + new_name)

    else:

        pass