<!DOCTYPE HTML> <html> <head> <meta charset="utf-8"> <title>无标题文档</title> <script> window.onload=function () { var oTab=document.getElementById('tab1'); var oldColor=''; for(var i=0;i<oTab.tBodies[0].rows.length;i++) { //鼠标移入 oTab.tBodies[0].rows[i].onmouseover=function () { oldColor=this.style.background;//表格每行原来的颜色 this.style.background='green'; }; //鼠标移出 oTab.tBodies[0].rows[i].onmouseout=function () { this.style.background=oldColor; }; //隔行变色 if(i%2) { oTab.tBodies[0].rows[i].style.background=''; } else { oTab.tBodies[0].rows[i].style.background='#CCC'; } } }; </script> </head> <body> <table id="tab1" border="1" width="500"> <thead> <td>ID</td> <td>姓名</td> <td>年龄</td> </thead> <tbody> <tr> <td>1</td> <td>Blue</td> <td>27</td> </tr> <tr> <td>2</td> <td>张三</td> <td>23</td> </tr> <tr> <td>3</td> <td>李四</td> <td>28</td> </tr> <tr> <td>4</td> <td>王五</td> <td>25</td> </tr> <tr> <td>5</td> <td>张伟</td> <td>24</td> </tr> </tbody> </table> </body> </html>