https://www.iana.org/assignments/language-subtag-registry/language-subtag-registry
%% Type: redundant Tag: zh-Hans Description: simplified Chinese Added: 2003-05-30 %% Type: redundant Tag: zh-Hans-CN Description: PRC Mainland Chinese in simplified script Added: 2005-04-13 %% Type: redundant Tag: zh-Hans-HK Description: Hong Kong Chinese in simplified script Added: 2005-04-11 %% Type: redundant Tag: zh-Hans-MO Description: Macao Chinese in simplified script Added: 2005-04-11 %% Type: redundant Tag: zh-Hans-SG Description: Singapore Chinese in simplified script Added: 2005-04-11 %% Type: redundant Tag: zh-Hans-TW Description: Taiwan Chinese in simplified script Added: 2005-04-11 %% Type: redundant Tag: zh-Hant Description: traditional Chinese Added: 2003-05-30 %% Type: redundant Tag: zh-Hant-CN Description: PRC Mainland Chinese in traditional script Added: 2005-04-13 %% Type: redundant Tag: zh-Hant-HK Description: Hong Kong Chinese in traditional script Added: 2005-04-11 %% Type: redundant Tag: zh-Hant-MO Description: Macao Chinese in traditional script Added: 2005-04-11 %% Type: redundant Tag: zh-Hant-SG Description: Singapore Chinese in traditional script Added: 2005-04-11 %% Type: redundant Tag: zh-Hant-TW Description: Taiwan Chinese in traditional script Added: 2005-04-11 %%
原文：https://www.cnblogs.com/Searchor/p/12102391.html