feat(文件管理): 文件管理修改

backend/del_migrations.py

@@ -4,7 +4,7 @@ import os
 
 exclude = ["venv"] # 需要排除的文件目录
 for root, dirs, files in os.walk('.'):
-    dirs[:] = [d for d in set(dirs) - set(exclude)]
+    dirs[:] = list(set(dirs) - set(exclude))
     if 'migrations' in dirs:
         dir = dirs[dirs.index('migrations')]
         for root_j, dirs_j, files_j in os.walk(os.path.join(root, dir)):