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                # 2.1 HTML ## 2.1 HTML HTML即**超文本標記語言(HyperText Markup Language)**。以下是一個HTML的“Hello, world!”程序[1](#fn_1)。 ``` <html> <head> <meta charset="utf-8"> <title>你好</title> </head> <body> <p>你好,HTML!</p> </body> </html> ``` 標記語言(Markup Language)用一套“標記”來“注釋”(annotate)普通文本。對HTML來說,這套標記就是各種**標簽(tag)**,如`<html></html>`、`<meta>`、`<p></p>`等等。瀏覽器理解這套標簽的含義,并據此解讀HTML文檔。 下面我們人工解讀一下上面的文檔。 > 1. 把它保存到一個后綴為.html的文件中(例如hello.html),用瀏覽器打開,你就能看到它的效果。[?](#reffn_1 "Jump back to footnote [1] in the text.")
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