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源代码：
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<!DOCTYPE html> <html> <body> <div style="text-align:center"> <button onclick="playPause()">播放/暂停</button> <button onclick="makeBig()">放大</button> <button onclick="makeSmall()">缩小</button> <button onclick="makeNormal()">普通</button> <br> <video id="video1" width="420"> <source src="/statics/demosource/mov_bbb.mp4" type="video/mp4"> <source src="/statics/demosource/mov_bbb.ogg" type="video/ogg"> 您的浏览器不支持 HTML5 video 标签。 </video> </div> <script> 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> </body> </html>
运行结果
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