选择模块：<select id="chen"  style="width: 100px;">
                    <#list moduleList as module>
                    <option id="${module.moduleId}" value="http://www.mamicode.com/${module.moduleId}">${module.moduleName}</option>
                    </#list>
                </select>

$(document).ready(function(){
    $(‘#chen‘).change(function(){
        var obj = document.getElementById("chen");
        var index = obj.selectedIndex;
        var text = obj.options[index].text;
        var value = http://www.mamicode.com/obj.options[index].value;>