.yaml 和 .yml 擴展名有什麼區別？ [複製] - What is the difference between .yaml and .yml extension? [duplicate]

問題：

This question already has answers here : 這個問題在這裏已經有了答案：

Is it .yaml or .yml? 是 .yaml 還是 .yml？ (4 answers) (4 個回答)

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I read them on YAML-wikipedia but not really understood the main difference between them.我在YAML-wikipedia上閱讀了它們，但並沒有真正理解它們之間的主要區別。 I saw there are someone using .yaml extension, however, Symfony2 use .yml extension.我看到有人使用.yaml擴展名，但是， Symfony2使用.yml擴展名。

YAML is a human-readable data serialization format that takes concepts from programming languages such as C, Perl, and Python, and ideas from XML and the data format of electronic mail. YAML是一種人類可讀的數據序列化格式，它借鑑了 C、Perl 和 Python 等編程語言的概念，以及 XML 和電子郵件數據格式的思想。

YAML is a recursive acronym for "YAML Ain't Markup Language". YAML是“YAML Ain't Markup Language”的遞歸首字母縮寫詞。 Early in its development, YAML was said to mean "Yet Another Markup Language",[3] but it was then reinterpreted (backronyming the original acronym) to distinguish its purpose as data-oriented, rather than document markup.在其開發的早期，據說 YAML 的意思是“另一種標記語言”，[3] 但它隨後被重新解釋（將原始首字母縮略詞）以區分其目的是面向數據，而不是文檔標記。

So, how exactly the different between .yaml and .yml ?那麼， .yaml和.yml之間.yaml .yml不同？ When should we prefer one over the other?我們什麼時候應該更喜歡一個？

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解決方案：

參考一： https://en.stackoom.com/question/1VRAe
參考二： https://stackoom.com/question/1VRAe