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HTML 音频/视频 DOM load() 方法
tryhtml5_av_met_load
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<!DOCTYPE html> <html> <body> <button onclick="myFunction()" type="button">Change Video</button><br> <video id="myVideo" controls autoplay> <source id="mp4_src" src="/demo/video/mov_bbb.mp4" type="video/mp4"> <source id="ogg_src" src="/demo/video/mov_bbb.ogg" type="video/ogg"> Your browser does not support HTML5 video. </video> <script> function myFunction() { document.getElementById("mp4_src").src = "movie.mp4"; document.getElementById("ogg_src").src = "movie.ogg"; document.getElementById("myVideo").load(); } </script> </body> </html>