一、jquery为多个选择器绑定同一个事件
$("#start,#end").on("click",function(){ alert("The paragraph was clicked."); });
二、多个事件绑定同一个函数
$("p").on("mouseover mouseout",function(){ $("p").toggleClass("intro"); })
三、多个事件绑定不同函数
$("p").on({ mouseover:function(){$("body").css("background-color","lightgray");}, mouseout:function(){$("body").css("background-color","lightblue");}, click:function(){$("body").css("background-color","yellow");} });