血的教训：采用md5哈希算法+时间戳重命名，避免覆盖

合并后就能安安心心排序了

import os import hashlib import shutil  # 指定的源文件夹列表 source_dirs = ["video/vox2/8-12/10s", "video/vox2/12-20/10s", "video/vox2/20-30/10s", "video/vox2/30-60/10s", "video/vox2/60-inf"]  # 添加更多文件夹  # 目标文件夹 target_dir = "video/vox2/10s"  # 创建目标文件夹，如果它不存在 if not os.path.exists(target_dir):     os.makedirs(target_dir)  # 遍历每个源文件夹 for source_dir in source_dirs:     if not os.path.exists(source_dir):         print(f"Warning: Directory does not exist: {source_dir}")         continue      print(f"Processing directory: {source_dir}")      # 使用 os.walk() 递归遍历文件夹     for root, dirs, files in os.walk(source_dir):         for filename in files:             print(f"Checking file: {os.path.join(root, filename)}")              # 检查文件是否为.jpg或.png格式             if filename.lower().endswith('.mp4'):                 # 分离文件名和扩展名                 base_name, ext = os.path.splitext(filename)                  # 生成文件内容的哈希值                 with open(os.path.join(root, filename), 'rb') as f:                     file_hash = hashlib.md5(f.read()).hexdigest()                  # 获取文件的修改时间戳                 modification_time = os.path.getmtime(os.path.join(root, filename))                  # 构建目标文件路径                 dst_file_path = os.path.join(target_dir, f"{file_hash}_{modification_time}{ext}")                  # 如果文件已存在，递增后缀直到找到唯一文件名                 while os.path.exists(dst_file_path):                     modification_time += 0.001  # 微小增加时间戳                     dst_file_path = os.path.join(target_dir, f"{file_hash}_{modification_time}{ext}")                  # 构建源文件的完整路径                 src_file_path = os.path.join(root, filename)                  # 复制文件到目标文件夹                 shutil.copy2(src_file_path, dst_file_path)                  # 输出信息                 print(f'Copied "{filename}" from "{root}" to "{dst_file_path}"')             else:                 print(f"Ignored file: {os.path.join(root, filename)}")  print("All images have been merged successfully.")