select iframe 基础用法

<script type="text/javascript"> 
function setsubmit() 
{ 
if(mylink.value == 0) 
window.location='http://www.baidu.com'; 
if(mylink.value == 1) 
window.location='http://www.w3cschool.cn'; 
if(mylink.value == 2) 
window.location='http://www.youj.com'; 
} 
</script> 
</head> 
<body> 

<select name="mylink" id="mylink">                                                             
<OPTION value="0">百度</OPTION> 
<OPTION value="1">w3cschool在线教程</OPTION> 
<OPTION value="2">优聚</OPTION>
</select>
 <input type="button" id="btn" value="提交" onclick="setsubmit(this)" /> </body> </html>

post['mylink']  == 选中的 option 的 val;

<div class="sideNav">
				<ul>
					<li><a href="https://www.baidu.com/index.php?tn=90300864_hao_pg" target="mainContent" class="left_menu on"><span>></span>百度</a></li>
					<li><a href="http://www.people.com.cn/" target="mainContent" class="left_menu"><span>></span>人民网</a></li>
					<li><a href="/do.plan_little.html" target="mainContent" class="left_menu"><span>></span>按日操盘</a></li>
					<li><a href="/do.plan.html" target="mainContent" class="left_menu"><span>></span>按月操盘</a></li>
					<li><a href="/do.pay.html" target="mainContent" class="left_menu"><span>></span>充值转入</a></li>
					<li><a href="/do.atm.html" target="mainContent" class="left_menu"><span>></span>盈利转出</a></li>
					<li><a href="/do.money.html" target="mainContent" class="left_menu"><span>></span>资金明细</a></li>
					<li><a href="http://www.qcj18.com/gonggao"  target="_blank" target="mainContent" class="left_menu"><span>></span>网站公告</a></li>
					<li><a href="/logout.php" target="_parent" class="left_menu"><span>></span>退出登录</a></li>
				</ul>
			</div>
		</div>
		<div class="right" style=" 880px;">
			<iframe id="mainContent"  name="mainContent" src="https://www.baidu.com/index.php?tn=90300864_hao_pg" width="100%" height="870" scrolling="no" frameborder="0"></iframe>

select iframe 基础 用法

select iframe 基础用法