<div id="aaa" style="height:200px; width:200px; background:#CCC;"></div><div id="bbb" style="height:200px; width:200px; background:#CFC;"></div><script src="http://upcdn.b0.upaiyun.com/libs/jquery/jquery-1.8.2.min.js"></script><script>$.fn.hoverDelay = function(options){	var defaults = {		hoverDuring: 2000,		outDuring: 2000,		hoverEvent: $.noop,		outEvent: $.noop	};	var sets = $.extend(defaults, options || {});	return $(this).live("hover",function(event) {		var that = this;		if(event.type =="mouseenter"){			clearTimeout(that.outTimer);			that.hoverTimer = setTimeout(			function(){sets.hoverEvent.apply(that)},			sets.hoverDuring		);	}	else 	{		clearTimeout(that.hoverTimer);		that.outTimer = setTimeout(		function(){sets.outEvent.apply(that)},		sets.outDuring	);	}	});}$("#aaa").hoverDelay({    hoverEvent: function(){        $("#bbb").html("进入");	    },	outEvent:function(){		$("#bbb").html("离开");		}});</script>