如何搜索印象笔记中的图片office等文档附件呢？
以下是搜索语句：
1. 所有图片：resource:image/*
2. jpg图片：resource:image/jpeg
3. png图片：resource:image/png
4. gif图片：resource:image/gif
5. 所有文档：resource:application/*
6. doc文档：resource:application/vnd.ms-word
7. xls文档 ：resource:application/vnd.ms-excel
8. ppt文档 ：resource:application/vnd.ms-powerpoint
9. docx文档 ：resource:application/vnd.openxmlformats-officedocument.wordprocessingml.document
10. xlsx文档 ：resource:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
11. pptx文档 ：resource:application/vnd.openxmlformats-officedocument.presentationml.presentation
12. iwork文档：resource:application/vnd.apple*，或：resource:application/x-iwork*
13. pages文档：resource:application/vnd.apple.pages，或：resource:application/x-iwork-keynote-sffpages
14. numbers 文档：resource:application/vnd.apple.numbers，或：resource:application/x-iwork-keynote-sffnumbers
15. keynote 文档：resource:application/vnd.apple.keynote，或：resource:application/x-iwork-keynote-sffkey
16. 所有音频：resource:audio/*
17. 所有视频：resource:video/*
18. mp4视频：resource:video/mp4
19. PDF文档：resource:application/pdf
20. zip文档：resource:application/zip
21. 八进制文件(rar/exe/enex等)文档：resource:application/octet-stream
22. xmind文档：resource:application/vnd.xmind.workbook
23. txt文档：resource:text/plain
印象笔记搜索语法：https://dev.yinxiang.com/doc/articles/search_grammar.php#Formal_Search_Grammar
