<html><body><button type="button" onclick="myFunction()">返回 clip 属性的值</button><br><img id="myImg" style="position:absolute;clip:rect(0px,90px,200px,0px);" src="/i/pic/w3logo.png" width="180" height="167"><script>function myFunction() { alert(document.getElementById("myImg").style.clip);}</script></body></html>