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JavaScript 自动在表格前面增加序号

  作者：bea

<!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


<!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 自动为表格增加序号</title>
<style type="text/css">
.index_tab{width:100%;border-collapse:collapse;border:1px solid #005892;margin:8px 0;}
.index_tab td{line-height:35px;border:1px solid #005892;padding-left:4px;}
tr.tr_top td{line-height:32px;border:none;background-color:#005892;color:#fff;font-weight:bold;}
td.td_center{text-align:center;}
.ys01{background-color:#E6F0FE;}
</style>
<script language="javascript" type="text/javascript">
window.onload = function(){
var oTable = document.getElementById("bbsTab");
for(var i=0;i<oTable.rows.length;i++){
oTable.rows[i].cells[0].innerHTML = (i+1);
if(i%2==0) //偶数行
oTable.rows[i].className = "ys01";
}
}
</script>
</head>
<body>
<table class="index_tab">
<tr class="tr_top">
<td class="td_center" width="9%">行号</td>
<td width="83%">标题</td>
<td class="td_center" width="11%">总计</td>
</tr>
<tbody id="bbsTab">
<tr >
<td class="td_center"></td>
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<td><a href="#">好用的ICO图标截取工具VB源程序</a></td>
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<td class="td_center"> </td>
</tr>
<tr >
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<td> </td>
<td class="td_center"> </td>
</tr>
<tr >
<td class="td_center"></td>
<td> </td>
<td class="td_center"> </td>
</tr>
<tr >
<td class="td_center"></td>
<td> </td>
<td class="td_center"> </td>
</tr>
</tbody>
</table>
</body>
</html>




[Ctrl+A 全选 注:
如需引入外部Js需刷新才能执行]



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