fmpq.com
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Fmpq教程(fmpq.com)</title> </head> <body> <video id="myVideo" width="320" height="240" poster="/images/logo.png" controls> <source src="movie.mp4" type="video/mp4"> <source src="movie.ogg" type="video/ogg"> 您的浏览器不支持 video 标签。 </video> <p>点击按钮返回视频的 poster 属性值。</p> <p id="demo"></p> <button onclick="myFunction()">点我</button> <script> function myFunction(){ var x = document.getElementById("myVideo").poster; document.getElementById("demo").innerHTML = x; } </script> </body> </html>
运行结果