js实现遍历含有input的table实例

<table id="groupTable" class="tblist_black"><% DataTable firstGroupTable = ViewState["firstGroupTable"] as DataTable; if (firstGroupTable != null) { for (int i = 0; i < firstGroupTable.Rows.Count; i ) { %>  <tr>  <td><div style="width:40px;"><span>一级</span></div></td>  <td><div style="width:40px;"><span> </span></div></td>  <td><div style="width:180px;"><span><input type="text" value="<%=firstGroupTable.Rows[i]["GroupName"]%>" /></span></div></td>  <td style="display:none"><div style="width:80px;"><span><%=firstGroupTable.Rows[i]["FirstNodeID"]%></span></div></td>  <td style="display:none"><div style="width:80px;"><span> </span></div></td>  <td><div style="width:60px;"><span><a href="#" onclick="editRow(<%=i%>)">[更新]</a></span></div></td>  <td><div style="width:60px;"><span><a href="">[删除]</a></span></div></td>  <td><div style="width:60px;"><span><a href="">[二级]</a></span></div></td>  </tr><% } }%></table>

function editRow(rowIndex) { alert(window.groupTable.rows.item(rowIndex).cells.item(2).getElementsByTagName_r('input')[0].value);}