Delete utils.py

utils.py

@@ -1,28 +0,0 @@
-import os
-
-def get_file_type(filename):
-    """根据文件扩展名判断文件类型"""
-    ext = os.path.splitext(filename)[1].lower()
-    
-    # 文件类型映射
-    type_map = {
-        'image': ['.jpg', '.jpeg', '.png', '.gif', '.bmp', '.webp'],
-        'video': ['.mp4', '.avi', '.mov', '.wmv', '.flv', '.mkv'],
-        'document': ['.pdf', '.doc', '.docx', '.xls', '.xlsx', '.ppt', '.pptx', '.txt'],
-        'audio': ['.mp3', '.wav', '.ogg', '.m4a'],
-        'archive': ['.zip', '.rar', '.7z', '.tar', '.gz'],
-        'code': ['.py', '.js', '.html', '.css', '.json', '.xml']
-    }
-    
-    for file_type, extensions in type_map.items():
-        if ext in extensions:
-            return file_type
-    return 'other'
-
-def format_file_size(size):
-    """格式化文件大小"""
-    for unit in ['B', 'KB', 'MB', 'GB', 'TB']:
-        if size < 1024:
-            return f"{size:.2f} {unit}"
-        size /= 1024
-    return f"{size:.2f} PB"