jQuery event.stopPropagation() 方法

阻止 click 事件冒泡到父元素：

$("span").click(function(event){  event.stopPropagation();  
	alert("The span element was clicked.");});
	$("p").click(function(event){  alert("The p element was clicked.");
	});$("div").click(function(){  alert("The div element was 
	clicked.");});

event.stopPropagation()