x
 
<!DOCTYPE html>
<html>
<body onresize="myFunction()">
<p>本例演示如何将 "onresize" 事件分配给 body 元素。</p>
<p>请尝试调整浏览器窗口的大小。</p>
<p>Window resized <span id="demo">0</span> times.</p>
<script>
var x = 0;
function myFunction() {
  var txt = x += 1;
  document.getElementById("demo").innerHTML = txt;
}
</script>
</body>
</html>