for folder in oslistdirdir if ospathisdirfolder and folderstartswith20230518 printfolder for subfolder in oslistdirfolder if DS_Store in subfolder

如果目录结构类似于这样：

dir/
├── 20230518_folder/
│   ├── subfolder1/
│   ├── subfolder2/
│   └── subfolder3/
├── other_folder/
└── another_folder/

则输出相对路径应为：

20230518_folder/subfolder1
20230518_folder/subfolder2
20230518_folder/subfolder3