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HTML 参考手册
HTML 音频/视频 DOM controls 属性
tryhtml5_av_prop_controls
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<!DOCTYPE html> <html> <body> <button onclick="enableControls()" type="button">Enable controls</button> <button onclick="disableControls()" type="button">Disable controls</button> <button onclick="checkControls()" type="button">Check controls status</button><br> <video id="myVideo" width="320" height="176"> <source src="/demo/video/mov_bbb.mp4" type="video/mp4"> <source src="/demo/video/mov_bbb.ogg" type="video/ogg"> Your browser does not support HTML5 video. </video> <script> let vid = document.getElementById("myVideo"); function enableControls() { vid.controls = true; vid.load(); } function disableControls() { vid.controls = false; vid.load(); } function checkControls() { alert(vid.controls); } </script> </body> </html>