jquery如何获取table每一行的第一列

Question

<div id="dnn_ctr702_ViewContact_divContactList">
<div>
<table class="DataGrid_Container" cellspacing="0" rules="all" border="1" id="dnn_ctr702_ViewContact_GridView1" style="width:100%;border-collapse:collapse;">
tr class="DataGrid_Item">
<td><a id="dnn_ctr702_ViewContact_GridView1_ctl02_ctl00" href="javascript:__doPostBack('dnn$ctr702$ViewContact$GridView1$ctl02$ctl00','')">207</a><input id="dnn_ctr702_ViewContact_GridView1_ctl02_CheckBox1" type="checkbox" name="dnn$ctr702$ViewContact$GridView1$ctl02$CheckBox1" /></td><td><a id="dnn_ctr702_ViewContact_GridView1_ctl02_LinkButton1" href="javascript:__doPostBack('dnn$ctr702$ViewContact$GridView1$ctl02$LinkButton1','')">刘德华</a><input type="image" name="dnn$ctr702$ViewContact$GridView1$ctl02$ImageButton5" id="dnn_ctr702_ViewContact_GridView1_ctl02_ImageButton5" title="移除黑名单" src="../../../../../../DesktopModules/Contact/images/moveblack.gif" style="border-width:0px;" /></td><td><a id="dnn_ctr702_ViewContact_GridView1_ctl02_lblHomeTel" href="javascript:__doPostBack('dnn$ctr702$ViewContact$GridView1$ctl02$lblHomeTel','')">520</a></td><td align="center" style="width:80px;">76912345678</td><td><a id="dnn_ctr702_ViewContact_GridView1_ctl02_lMoblieNo" href="javascript:__doPostBack('dnn$ctr702$ViewContact$GridView1$ctl02$lMoblieNo','')">13512345678</a></td><td align="center" style="width:80px;">易</td><td align="center" style="width:80px;">[email protected]</td>
</tr>
 </table>
</div>
</div>
上面是页面源码，我要用jQuery把第一列的a链接（<a id="dnn_ctr702_ViewContact_GridView1_ctl02_ctl00" href="javascript:__doPostBack('dnn$ctr702$ViewContact$GridView1$ctl02$ctl00','')">207</a>）隐藏

Answer 1

$("#dnn_ctr702_ViewContact_GridView1 tr").find("a").first().hide()

Answer 2

选择第一行，用 $('tr:eq(0)')
选择第N行用 $('tr:eq(n-1)')$("tr td:nth-child(2)").each(function(){ 
$(this).attr("name","artTitle") 
    }); 
JQUERY 选择器

Answer 3

我看你是懒得学呀！
Jquery选择器