1、實現源碼
複製代碼代碼如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JavaScript實現獲取table中某一列的值</title>
<script type="text/javascript">
function getTdValue()
{
var tableId = document.getElementById("tab");
var str = "";
for(var i=1;i<tableId.rows.length;i++)
{
alert(tableId.rows[i].cells[1].innerHTML);
}
}
</script>
</head>
<body>
<table id="tab" onclick="getTdValue()" cellpadding="1" cellspacing="1">
<tr style="background-color:#CCC;">
<th>學號</th>
<th>姓名</th>
<th>性別</th>
<th>年齡</th>
</tr>
<tr>
<td>1</td>
<td>李斯</td>
<td>男</td>
<td>22</td>
</tr>
<tr>
<td>2</td>
<td>王倩</td>
<td>女</td>
<td>20</td>
</tr>
<tr>
<td>3</td>
<td>于謙</td>
<td>男</td>
<td>18</td>
</tr>
<tr>
<td>4</td>
<td>柳浪</td>
<td>女</td>
<td>19</td>
</tr>
<tr>
<td>5</td>
<td>諸葛亮</td>
<td>男</td>
<td>20</td>
</tr>
<tr>
<td>6</td>
<td>東方雲</td>
<td>女</td>
<td>21</td>
</tr>
<tr>
<td>7</td>
<td>公孫策</td>
<td>男</td>
<td>22</td>
</tr>
<tr>
<td>8</td>
<td>寶清</td>
<td>女</td>
<td>23</td>
</tr>
<tr>
<td>9</td>
<td>智育</td>
<td>男</td>
<td>20</td>
</tr>
<tr>
<td>10</td>
<td>柳絲絲</td>
<td>女</td>
<td>21</td>
</tr>
</table>
</body>
</html>
2、設計結果
（1）初始化時
（2）單擊第二列時