原帖《js 实现下拉列表的重复利用 》
可以优化一下代码：
<div id="nation">民族：</div> <div id="shengxiao">生肖：</div> <div id="degree">学位：</div> <div id="self">自定义：</div> <script> function createSelect(c){ var _inner = { "nation" : ['汉族','蒙古族','彝族','侗族','哈萨克族', '畲族','纳西族','仫佬族','仡佬族','怒族','保安族', '鄂伦春族','回族','壮族','瑶族','傣族','高山族', '景颇族','羌族','锡伯族','乌孜别克族','裕固族','赫哲族', '藏族','布依族','白族','黎族','拉祜族','柯尔克孜族','布朗族', '阿昌族','俄罗斯族','京族','门巴族','维吾尔族','朝鲜族', '土家族','傈僳族','水族','土族','撒拉族','普米族','鄂温克族', '塔塔尔族','珞巴族','苗族','满族','哈尼族','佤族','东乡族', '达斡尔族','毛南族','塔吉克族','德昂族','独龙族','基诺族'], "shengxiao" : ['鼠','牛','虎','兔','蛇','蛇','马','羊','猴','鸡','狗','猪'], "degree" : ['小学','初中','高中','中专','大专','本科','硕士','博士'] } var _array = c["array"] || _inner[c["type"]]; var _select = document.createElement("select"); for(var i=0; i < _array.length; i++){ _select.options[i] = new Option(_array[i], _array[i]); _array[i] == c["selected"] && (_select.options[i].selected = true); } c["id"] && (_select.id = c["id"]); c["name"] && (_select.name = c["name"]); c["onchange"] && (_select.onchange = c["onchange"]); return _select; } //应用 function $(id){return document.getElementById(id);} $("nation").appendChild(createSelect({type : "nation", selected : "蒙古族",onchange : function(){alert(this.value)}})); $("shengxiao").appendChild(createSelect({type : "shengxiao", selected : "虎", id : "shengxiao"})); $("degree").appendChild(createSelect({type : "degree", selected : "本科", name : "degree"})); $("self").appendChild(createSelect({array : ["你","我","他"], selected : "他"})); </script> 相关资源：Java 面经手册·小傅哥(公众号：bugstack虫洞栈).pdf