<!DOCTYPE html> <html> <head> <title></title> <script> var v=document.getElementsByTagName("video"); function clickV() { if(v.paused) { v.play(); } else { v.pause(); } } function clickBig() { v.width=1000px; v.height=800px; } function clickSmall() { v.width=300px; v.height=300px; } </script> </head> <body> <!--html5音频播放--> <audio id="auto" src="1.mp3" controls="controls">你的浏览器不支持</audio><br/> <button onclick="clickA()">播放/暂停</button> <br/> <script> var a=document.getElementById("auto"); function clickA() { if(a.paused) { a.play(); } else { a.pause(); } } </script> <video id="video" src="a.mp4" controls="controls" width="800px" height="600px"></video> <!--html5视频播放 浏览器不支持的话可以先把视频格式转换为ogg格式 --> <video controls="controls"> <source src="a.mp4"> <source src="a.ogg"> </video> <button onclick="clickV()">播放/暂停</button> <br/> <button onclick="clickBig()">放大</button> <br/> <button onclick="clickSmall()">缩小</button> <br/> </body> </html>