Python 技术篇-文件操作：本地文件重命名

import os

# 方法一
path = "D:\\python"
old_name = os.path.join(path, "a.txt")
new_name = os.path.join(path, "b.txt")
os.rename(old_name, new_name)

# 方法二
os.rename("D:\\python\\a.txt", "D:\\python\\b.txt")