<!DOCTYPE html><html><head><style type="text/CSS">.firstDiv{ float:left; background:pink;}.firstDiv:hover{ cursor:pointer;}.noSelected{ -moz-user-select:none; -webkit-user-select:none; -ms-user-select:none; user-select:none;}.secondDiv{ background:gray; width:200px; height:400px; float:left; display:none; padding-top:30px; padding-left:30px;}</style></head><body><div id="firstDiv" class="firstDiv"><span class="noSelected">滑鼠滑動查看資訊。</span></div><div id="secondDiv" class="secondDiv"><p>qq:1900098</p><p>tel:99998888</p><p>user:xq</p></div><script type="text/JavaScript" src="../publicJQuery/jquery-2.1.4.js"></script><script type="text/JavaScript">/*面向過程編程,首先得到某某,然後執行某某操作,敘事般往下走$("#firstDiv").hover(function(){$("#secondDiv").css("display","block");} , function(){$("#secondDiv").css("display","none");});$("#secondDiv").hover(function(){$("#secondDiv").css("display","block");} , function(){$("#secondDiv").css("display","none");});*//*建立一個showAndHideDiv對象,屬性為傳入的參數,方法為show()跟hide()方法*/function showAndHideDiv(element){/* 不明顯的物件導向this.show=function(){$(element).css("display","block");}this.hide=function(){$(element).css("display","none");}*/this.element=element;}showAndHideDiv.prototype={show:function(){$(this.element).css("display","block");},hide:function(){$(this.element).css("display","none");}}var divForChange=new showAndHideDiv("#secondDiv");$("#firstDiv,#secondDiv").hover(function(){divForChange.show();} ,function(){divForChange.hide();});//$("#secondDiv").hover( function(){divForChange.show();}, function(){divForChange.hide();});</script></body></html>