日期:2014-05-16 浏览次数:20346 次
<html> <head> </head> <body onload="onload()"> <table id=t1 align="center" border="1"> <tr> <td>第一行</td> <td>11</td> </tr> <tr> <td>第二行</td> <td>22</td> </tr> <tr> <td>第三行</td> <td>33</td> </tr> <tr> <td>第四行</td> <td>44</td> </tr> </table> <script type="text/javascript"> function onload(){ var danger = 25; var table = document.getElementById("t1") //var table = document.getElementById("t1").rows[0].cells[0]; var rowObj = null; var cellObj = null; // 引用rows for (var i = 0; i < table.rows.length; i ++){ rowObj = table.rows[i]; var s = rowObj.cells[1].innerHTML; if(s>=danger){ //rowObj.cells[1].style.color='red'; rowObj.cells[1].style.backgroundColor="red";; } } } </script> </body> </html>