ISO 语言代码
HTML 的 lang 属性可用于声明网页或部分网页的语言，这对搜索引擎和浏览器是有帮助的。
根据 W3C 推荐标准，您应该通过 <html> 标签中的 lang 属性对每张页面中的主要语言进行声明：
<html>
比如声明原文版语言：
<html lang="en"> ... </html>
在 XHTML 中，采用如下方式在 <html> 标签中对语言进行声明：
<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en"> ... </html>
ISO 639-1 语言代码
ISO 639-1 为各种语言定义了缩略词。您可以在 HTML 和 XHTML 中的 lang 和 xml:lang 属性中使用它们。
语言 ISO 代码 Abkhazian ab Afar aa Afrikaans af Albanian sq Amharic am Arabic ar Aragonese an Armenian hy Assamese as Aymara ay Azerbaijani az Bashkir ba Basque eu Bengali (Bangla) bn Bhutani dz Bihari bh Bislama bi Breton br Bulgarian bg Burmese my Byelorussian (Belarusian) be Cambodian km Catalan ca Cherokee Chewa Chinese (简体) zh Chinese (繁体) zh Corsican co Croatian hr Czech cs Danish da Divehi Dutch nl Edo English en Esperanto eo Estonian et Faeroese fo Farsi fa Fiji fj Finnish fi Flemish French fr Frisian fy Fulfulde Galician gl Gaelic (Scottish) gd Gaelic (Manx) gv Georgian ka German de Greek el Greenlandic kl Guarani gn Gujarati gu Haitian Creole ht Hausa ha Hawaiian Hebrew he, iw Hindi hi Hungarian hu Ibibio Icelandic is Ido io Igbo Indonesian id, in Interlingua ia Interlingue ie Inuktitut iu Inupiak ik Irish ga Italian it Japanese ja Javanese jv Kannada kn Kanuri Kashmiri ks Kazakh kk Kinyarwanda (Ruanda) rw Kirghiz ky Kirundi (Rundi) rn Konkani Korean ko Kurdish ku Laothian lo Latin la Latvian (Lettish) lv Limburgish ( Limburger) li Lingala ln Lithuanian lt Macedonian mk Malagasy mg Malay ms Malayalam ml Maltese mt Maori mi Marathi mr Moldavian mo Mongolian mn Nauru na Nepali ne Norwegian no Occitan oc Oriya or Oromo (Afaan Oromo) om Papiamentu Pashto (Pushto) ps Polish pl Portuguese pt Punjabi pa Quechua qu Rhaeto-Romance rm Romanian ro Russian ru Sami (Lappish) Samoan sm Sangro sg Sanskrit sa Serbian sr Serbo-Croatian sh Sesotho st Setswana tn Shona sn Sichuan Yi ii Sindhi sd Sinhalese si Siswati ss Slovak sk Slovenian sl Somali so Spanish es Sundanese su Swahili (Kiswahili) sw Swedish sv Syriac Tagalog tl Tajik tg Tamazight Tamil ta Tatar tt Telugu te Thai th Tibetan bo Tigrinya ti Tonga to Tsonga ts Turkish tr Turkmen tk Twi tw Uighur ug Ukrainian uk Urdu ur Uzbek uz Venda Vietnamese vi Volapük vo Wallon wa Welsh cy Wolof wo Xhosa xh Yi Yiddish yi, ji Yoruba yo Zulu zu
原文链接：https://codingdict.com/
