在Python中为文件名添加时间戳

import os
from datetime import datetime

def add_timestamp_to_filename(filename):
    # 获取当前时间
    timestamp = datetime.now().strftime("%Y%m%d%H%M%S")
    
    # 拆分文件名和扩展名
    basename, ext = os.path.splitext(filename)
    
    # 添加时间戳到文件名中
    new_filename = f"{basename}_{timestamp}{ext}"
    
    return new_filename

# 示例用法
filename = "example.txt"
new_filename = add_timestamp_to_filename(filename)
print(new_filename)