javascript实现级联菜单

关注

原创最新推荐文章于 2026-03-14 00:28:37 发布 2.2w 阅读 AI 写同款· GEO 优化 ›

基于jQuery实现级联下拉菜单（jQuery JavaScript）级联下拉菜单是一种常见的用户界面组件，它允许用户根据前一个下拉菜单的选择来动态加载下一个下拉菜单的选项。在本文中，我们将使用jQuery和JavaScript来实现一个简单的级联下拉菜单。我们将使用jQuery的事件处理函数来监听第一个下拉菜单的选择变化，并在选择变化时动态加载第二个下拉菜单的选项。用户在选择第一个下拉菜单的选项时，第二个下拉菜单的选项会根据选择的值进行动态加载。第一个下拉菜单用于选择一级选项，第二个下拉菜单将根据一级选项的选择进行动态加载。在上面的代码中，我们定义了一个名为。阅读详情

级联菜单，就是有两个select选项，选中其中一个后，另外一个选项也跟着变化。

具体实现如下：

index.html文件如下：

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>test </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Descrīption" CONTENT="">
<scrīpt type="text/javascrīpt" src="ajax/function.js"></scrīpt>
</HEAD>

js文件如下：

/*
+----------------------------------------
| 级联菜单的实现
+----------------------------------------
|
|
| steven cheng @2007 9 6
| steven@wodingg.com
+----------------------------------------
*/

/*
下面是全部省份和城市的定义数组
*/
var p =new Array();
p[0] = "选择省份";
p[1] = "北京";
p[2] = "上海";
p[3] = "天津";
p[4] = "重庆";
p[5] = "河北";
p[6] = "山西";
p[7] = "内蒙古 ";
p[8] = "辽宁 ";
p[9] = "吉林";
p[10] = "黑龙江 ";
p[11] = "江苏";
p[12] = "浙江";
p[13] = "安徽";
p[14] = "福建";
p[15] = "江西";
p[16] = "山东";
p[17] = "河南";
p[18] = "湖北";
p[19] = "湖南";
p[20] = "广东";
p[21] = "广西";
p[22] = "海南";
p[23] = "四川";
p[24] = "贵州";
p[25] = "云南";
p[26] = "西藏";
p[27] = "陕西";
p[28] = "甘肃";
p[29] = "宁夏";
p[30] = "青海";
p[31] = "新疆";
p[32] = "香港";
p[33] = "澳门";
p[34] = "台湾";

var c =new Array();
c[0] =new Array("选择城市");
c[1] =new Array("东城","西城","崇文","宣武","朝阳","丰台","石景山","海淀","门头沟","房山","通州","顺义","昌平","大兴","平谷","怀柔","密云","延庆");
c[2] =new Array("黄浦","卢湾","徐汇","长宁","静安","普陀","闸北","虹口","杨浦","闵行","宝山","嘉定","浦东","金山","松江","青浦","南汇","奉贤","崇明");
c[3] =new Array("和平","东丽","河东","西青","河西","津南","南开","北辰","河北","武清","红挢","塘沽","汉沽","大港","宁河","静海","宝坻","蓟县");
c[4] =new Array("万州","涪陵","渝中","大渡口","江北","沙坪坝","九龙坡","南岸","北碚","万盛","双挢","渝北","巴南","黔江","长寿","綦江","潼南","铜梁","大足","荣昌","壁山","梁平","城口","丰都","垫江","武隆","忠县","开县","云阳","奉节","巫山","巫溪","石柱","秀山","酉阳","彭水","江津","合川","永川","南川");
c[5] =new Array("石家庄","邯郸","邢台","保定","张家口","承德","廊坊","唐山","秦皇岛","沧州","衡水");
c[6] =new Array("太原","大同","阳泉","长治","晋城","朔州","吕梁","忻州","晋中","临汾","运城");
c[7] =new Array("呼和浩特","包头","乌海","赤峰","呼伦贝尔盟","阿拉善盟","哲里木盟","兴安盟","乌兰察布盟","锡林郭勒盟","巴彦淖尔盟","伊克昭盟");
c[8] =new Array("沈阳","大连","鞍山","抚顺","本溪","丹东","锦州","营口","阜新","辽阳","盘锦","铁岭","朝阳","葫芦岛");
c[9] =new Array("长春","吉林","四平","辽源","通化","白山","松原","白城","延边");
c[10] =new Array("哈尔滨","齐齐哈尔","牡丹江","佳木斯","大庆","绥化","鹤岗","鸡西","黑河","双鸭山","伊春","七台河","大兴安岭");
c[11] =new Array("南京,镇江,苏州,南通,扬州,盐城,徐州,连云港,常州,无锡,宿迁,泰州,淮安");
c[12] =new Array("杭州","宁波","温州","嘉兴","湖州","绍兴","金华","衢州","舟山","台州","丽水");
c[13] =new Array("合肥","芜湖","蚌埠","马鞍山","淮北","铜陵","安庆","黄山","滁州","宿州","池州","淮南","巢湖","阜阳","六安","宣城","亳州");
c[14] =new Array("福州","厦门","莆田","三明","泉州","漳州","南平","龙岩","宁德");
c[15] =new Array("南昌市","景德镇","九江","鹰潭","萍乡","新馀","赣州","吉安","宜春","抚州","上饶");
c[16] =new Array("济南","青岛","淄博","枣庄","东营","烟台","潍坊","济宁","泰安","威海","日照","莱芜","临沂","德州","聊城","滨州","菏泽");
c[17] =new Array("郑州","开封","洛阳","平顶山","安阳","鹤壁","新乡","焦作","濮阳","许昌","漯河","三门峡","南阳","商丘","信阳","周口","驻马店","济源");
c[18] =new Array("武汉","宜昌","荆州","襄樊","黄石","荆门","黄冈","十堰","恩施","潜江","天门","仙桃","随州","咸宁","孝感","鄂州");
c[19] =new Array("长沙","常德","株洲","湘潭","衡阳","岳阳","邵阳","益阳","娄底","怀化","郴州","永州","湘西","张家界 ");
c[20] =new Array("广州","深圳","珠海","汕头","东莞","中山","佛山","韶关","江门","湛江","茂名","肇庆","惠州","梅州","汕尾","河源","阳江","清远","潮州","揭阳","云浮");
c[21] =new Array("南宁","柳州","桂林","梧州","北海","防城港","钦州","贵港","玉林","南宁地区","柳州地区","贺州","百色","河池");
c[22] =new Array("海口","三亚");
c[23] =new Array("成都","绵阳","德阳","自贡","攀枝花","广元","内江","乐山","南充","宜宾","广安","达川","雅安","眉山","甘孜","凉山","泸州");
c[24] =new Array("贵阳","六盘水","遵义","安顺","铜仁","黔西南","毕节","黔东南","黔南");
c[25] =new Array("昆明","大理","曲靖","玉溪","昭通","楚雄","红河","文山","思茅","西双版纳","保山","德宏","丽江","怒江","迪庆","临沧");
c[26] =new Array("拉萨","日喀则","山南","林芝","昌都","阿里","那曲");
c[27] =new Array("西安","宝鸡","咸阳","铜川","渭南","延安","榆林","汉中","安康","商洛");
c[28] =new Array("兰州","嘉峪关","金昌","白银","天水","酒泉","张掖","武威","定西","陇南","平凉","庆阳","临夏","甘南");
c[29] =new Array("银川","石嘴山","吴忠","固原");
c[30] =new Array("西宁","海东","海南","海北","黄南","玉树","果洛","海西");
c[31] =new Array("乌鲁木齐","石河子","克拉玛依","伊犁","巴音郭勒","昌吉","克孜勒苏柯尔克孜","博尔塔拉","吐鲁番","哈密","喀什","和田","阿克苏 ");
c[32] =new Array("香港特别行政区 ");
c[33] =new Array("澳门特别行政区 ");
c[34] =new Array("台北","高雄","台中","台南","屏东","南投","云林","新竹","彰化","苗栗","嘉义","花莲","桃园","宜兰","基隆","台东","金门","马祖","澎湖");

/*
* 将省份添加到slect中去
*/

function set_pro_select1(so) {
///alert(123);
    for (var i = 0, n = p.length; i < n; i++ ) {
        var ōpt = document.createElement('option');
        opt.text = p[i];
        opt.value = i;
        // 有些浏览器不支持 options 属性的 add 方法，
        // 但支持 DOM 的 appendChild 方法（比如：Konqueror）
        if (so.options.add) {
            so.options.add(opt);
        }
        else {
            so.appendChild(opt);
        }
    }
}

/*
*将对应的城市添加到第二个select中去
*/
function set_city_select1(so,pid){
for(var i = 0,n = c[pid].length;i < n;i++){
        var ōpt=document.createElement('option');
  opt.text = c[pid][i];
  opt.value = i;

  if (so.options.add) {
            so.options.add(opt);
        }
        else {
            so.appendChild(opt);
        }
}
}

/*
*清除城市select中的内容
*/
function clear_select(so) {
    for (var i = so.options.length - 1; i > -1; i--) {
        // 有些浏览器不支持 options 属性的 remove 方法，
        // 但支持 DOM 的 removeChild 方法（比如：Konqueror）
        if (so.options.remove) {
            so.options.remove(i);
        }
        else {
            so.removeChild(so.options[i]);
        }
    }
}

/*
*改变省份
*/
function change_province(pid) {
set_city_select(pid);
}

/*
用来初始化省份的菜单
*/
function init(){
var so=document.getElementById('prov');
set_pro_select1(so);
change_province(0);
}

function set_city_select(pid){
var so = document.getElementById('city');
clear_select(so);
set_city_select1(so,pid);
}

代码里有注释，就不在这里详细讲了。只是给大家一个参考而已。