<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title></title> <style type="text/css"> .container { width: 220px; border: 20px lightgreen solid; margin: 20px auto; } ul { margin: 0; padding: 0; width: 220px; text-align: center; background-color: grey; } li { list-style-type: none; display: inline-block; width: 60px; height: 60px; margin: 3px; padding: 0; border: 0; background-color: #ffffff; } .active { background-color: red; } .container div { background-color: gray; height: 100px; } </style> <script type="text/javascript"> function DateGuo(oDiv){ this.aLi = oDiv.getElementsByTagName('li'); this.oDivIn = oDiv.getElementsByTagName('div')[0]; this.aGuoH1 = ['1月','2月','3月','4月','5月','6月','7月','8月','9月','10月','11月','12月']; this.aGuoP = [ '一月的靖哥哥', '二月的靖哥哥', '三月的靖哥哥', '四月的靖哥哥', '五月的靖哥哥', '六月的靖哥哥', '七月的靖哥哥', '八月的靖哥哥', '九月的靖哥哥', '十月的靖哥哥', '十一月的靖哥哥', '十一月的靖哥哥' ]; this.setClick(); } DateGuo.prototype.setClick = function(){ var _this = this; for(var i=0;i<this.aLi.length;i++) { this.aLi[i].index = i; this.aLi[i].onmouseover = function () { this.className = 'active'; _this.oDivIn.innerHTML = "<h1>"+_this.aGuoH1[this.index]+"</h1><p>"+_this.aGuoP[this.index]+"</p>"; }; this.aLi[i].onmouseout =function(){ this.className = ''; }; } }; window.onload = function(){ var oDiv = document.getElementsByClassName('container')[0]; var oDateGuo = new DateGuo(oDiv); }; </script> </head> <body> <div class="container"> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> <li>5</li> <li>61</li> <li>7</li> <li>8</li> <li>9</li> <li>10</li> <li>11</li> <li>12</li> </ul> <div> <h2>hello</h2> <p>my lady</p> </div> </div> </body> </html>