<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script src="js/jquery.js"></script>
		<script>
			window.onload = function(){
				document.getElementById('btnok').onclick = function(){
					//1.显示所有异常元素
					//$('div:hidden').show(3000);
					//2.隐藏所有可见元素
					$('div:visible').hide(3000);
				}
			}
		</script>
	</head>
	<body>
		<input type="button" id="btnok" value="匹配">
		<hr>
		<div style="width:300px; height:300px; background-color:red; display:none;"></div>
		<div style="width:300px; height:300px; background-color:red; "></div>
	</body>
</html>