<html><body><object id="myObject" width="300" height="300" data="/i/photo/tulip.jpg" style="border:1px solid black"></object><p>单击按钮可将 object 元素的高度和宽度更改为 500px。</p><button onclick="myFunction()">试一试</button><p id="demo"></p><script>function myFunction() { document.getElementById("myObject").height = "500"; document.getElementById("myObject").width = "500";}</script></body></html>