> For the complete documentation index, see [llms.txt](https://kb.howsci.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kb.howsci.com/references/file-att/url-lan-mu.md).

# URL栏目

URL 是网络地址，多数 URL 指网页，如 <http://www.howsci.com，URL还可以是> FTP 地址，如 ftp.howsci.com

如果在 URL 字段输入网址，会自动变成超链接

更多信息见 [URL 输入](/references/creating-a-new-reference/url.md)