<!DOCTYPE html>
<html>
<body>
<video id="video1" controls="controls" width="400px" height="400px">
<source src="img/1.mp4">
</video>
<p>
<button onclick="enableMute()" type="button">关闭声音</button>
<button onclick="disableMute()" type="button">打开声音</button>
<button onclick="playVid()" type="button">播放视频</button>
<button onclick="pauseVid()" type="button">暂停视频</button>
<button onclick="showFull()" type="button">全屏</button><br />
<span>进度条:</span>
<progress value="0" max="0" id="pro"></progress>
<span>音量:</span>
<input type="range" min="0" max="100" value="50" onchange="setvalue()" id="ran"/>
</p>
<script>
var btn=document.getElementsByTagName("button");
var myvideo=document.getElementById("video1");
var pro=document.getElementById("pro");
var ran=document.getElementById("ran");
function enableMute(){
myvideo.muted=true;
btn[0].disabled=true;
btn[1].disabled=false;
}
function disableMute(){
myvideo.muted=false;
btn[0].disabled=false;
btn[1].disabled=true;
}
function playVid(){
myvideo.play();
setInterval(pro1,1000);
}
function pauseVid(){
myvideo.pause();
}
function showFull(){
myvideo.webkitrequestFullscreen();
}
function pro1(){
pro.max=myvideo.duration;
pro.value=myvideo.currentTime;
}
function setvalue(){
myvideo.volume=ran.value/100;
myvideo.muted=false;
}
</script>
</body>
</html>
