<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
</head>
<body>
<!-- 当前，video 元素支持三种视频格式：
格式 IE Firefox Opera Chrome Safari
Ogg No 3.5+ 10.5+ 5.0+ No
MPEG4 9.0+ No No 5.0+ 3.0+
WebM No 4.0+ 10.6+ 6.0+ No
Ogg = 带有 Theora 视频编码和 Vorbis 音频编码的 Ogg 文件
MPEG4 = 带有 H.264 视频编码和 AAC 音频编码的 MPEG 4 文件
WebM = 带有 VP8 视频编码和 Vorbis 音频编码的 WebM 文件-->
<!-- controls 让浏览器显示视频中的元素-->
<video controls="controls" autoplay="autoplay" loop="loop" id="video1">
<source src="http://www.w3school.com.cn/i/movie.ogg" type="video/mp4" media="screen and (min-width:500px) " />
<!--宽度小于500播放下面这个-->
<source src="http://www.w3school.com.cn/i/movie.ogg" type="video/mp4" media="screen" />
Sorry,your browser is unable to play this video.
</video>
<section>
<button onclick="playPause()">播放/暂停</button>
<button onclick="makeBig()">大</button>
<button onclick="makeNormal()">中</button>
<button onclick="makeSmall()">小</button>
</section>
<script type="text/javascript">
var myVideo = document.getElementById("video1");
function playPause() {
if (myVideo.paused)
myVideo.play();
else
myVideo.pause();
}
function makeBig() {
myVideo.width = 560;
}
function makeSmall() {
myVideo.width = 320;
}
function makeNormal() {
myVideo.width = 420;
}
</script>
<!--当前，audio 元素支持三种音频格式：
IE 9 Firefox 3.5 Opera 10.5 Chrome 3.0 Safari 3.0
Ogg Vorbis √ √ √
MP3 √ √ √
Wav √ √ √-->
<audio src="http://www.w3school.com.cn/i/song.mp3" controls="controls" autoplay="autoplay">
Your browser does not support the audio tag.
</audio>
</body>
</html>
HTML5学习之视频与音频（三）
时间： 2025-01-09 03:51:57