使用HTML中的kind 属性可以指定HTML中文本轨道的类型。例如，您可以将种类设置为字幕文件的字幕。
您可以尝试运行以下代码以实现kind属性-
<!DOCTYPE HTML> <html> <body> <video width = "300" height="200" controls autoplay> <source src = "/html5/foo.ogg" type = "video/ogg" /> <source src = "/html5/foo.mp4" type = "video/mp4" /> <track src = "subtitles_en.vtt" kind = "subtitles" srclang = "en" label = "English"> <track src = "subtitles_ru.vtt" kind = "subtitles" srclang = "ru" label = "Russia" default> Your browser does not support the video element. </video> </body> </html>