<script language="javascript">
function example
{
var selectedIndex = document.form1.province.selectedIndex;
var value = document.form1.province.value;
var province = value.substring(2,4);

<#if Session["cityList"]?exists>
<#list Session["cityList"]?keys as keys>
<#if keys == province>
alert(${keys});
</#if>
</#list>
</#if>
}
</script>

报错：Expression province is undefined
--
FROM 125.39.112.*