Js-动态控制table的tr、td增加及删除的具体实现

<table id=‘wifi_clients_table‘ style="color:#0099CC;font-size:12px;" class="table table-striped table-bordered table-hover table-condensed"> 
<thead> 
<tr class="success"> 
<th>序号</th> 
<th>机器名</th> 
<th>IP地址</th> 
<th>MAC地址</th> 
<th>上行/下行速率</th> 
</tr> 
</thead> 
<tbody> 

</tbody> 
</table> 

if(条件) 
{//根据InterfaceType的值区分无线客户端和有限客户端 
var table = document.getElementById("wifi_clients_table"); 
var newRow = table.insertRow(); //创建新行 

var newCell1 = newRow.insertCell(0); //创建新单元格 
newCell1.innerHTML = "<td>1</td>" ; //单元格内的内容 
newCell1.setAttribute("align","center"); //设置位置 

var newCell2 = newRow.insertCell(1); //创建新单元格 
newCell2.innerHTML = "<td>"+info.LANHosts.HostName+"</td>"; 
newCell2.setAttribute("align","center"); //设置位置 

var newCell3 = newRow.insertCell(2); //创建新单元格 
newCell3.innerHTML = "<td>"+info.LANHosts.IPAddress+"</td>"; 
newCell3.setAttribute("align","center"); //设置位置 

var newCell4 = newRow.insertCell(3); //创建新单元格 
newCell4.innerHTML = "<td>"+info.LANHosts.MACAddress+"</td>"; 
newCell4.setAttribute("align","center"); //设置位置 

var newCell5 = newRow.insertCell(4); //创建新单元格 
newCell5.innerHTML = "<td>"+info.LANHosts.UpRate+"/"+info.LANHosts.DownRate+"kb</td>"; 
newCell5.setAttribute("align","center"); //设置位置 

} 

var t1=document.getElementById("lan_clients_table"); 

var rowNum=t1.rows.length; 
if(rowNum>0) 
{ 
for(i=0;i<rowNum;i++) 
{ 
t1.deleteRow(i); 
rowNum=rowNum-1; 
i=i-1; 
} 
}