Python -我压缩了一些带有子文件夹的文件夹，但它压缩了两次。

import zipfile
import os

def compress_folder(folder_path, output_path):
    if not os.path.exists(output_path):
        with zipfile.ZipFile(output_path, 'w', zipfile.ZIP_DEFLATED) as zipf:
            for root, dirs, files in os.walk(folder_path):
                for file in files:
                    file_path = os.path.join(root, file)
                    zipf.write(file_path, os.path.relpath(file_path, folder_path))
        print("文件夹压缩成功！")
    else:
        print("目标压缩文件已存在，无需再次压缩。")

# 调用函数进行文件夹压缩
compress_folder("待压缩文件夹路径", "目标压缩文件路径")