我正在尝试在我的 Sapper 应用程序中打开并读取 .md 文件的目录。我尝试导入，但它不允许字符串表达式('file${index}.md'(。所以我尝试通过 fs 节点模块打开并读取文件，但我在服务器中收到以下消息：
preferring built-in module 'fs' over local alternative at 'fs', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
preferring built-in module 'fs' over local alternative at 'fs', pass 'preferBuiltins: false' to disable this behavior or 'preferBuiltins: true' to disable this warning
'fs' is imported by src/routes/blog/[slug].svelte, but could not be resolved – treating it as an external dependency
'default' is imported from external module 'fs' but never used
如果你正在访问文件系统，你应该在服务器路由中执行此操作 - 即一个.js文件，如routes/blog/[slug].json.js(对应于/blog/:slug.json( - 而不是在页面中，这将在服务器和客户端上运行。
https://sapper.svelte.dev/docs#Server_routes