JavaScript省市区三级联动菜单效果

网络编程 2025/1/15 佚名

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本文实例为大家分享了三级联动省市区js完整代码，供大家参考，具体内容如下

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
 var cityList = new Array();
 var quList = new Array();
 cityList['北京'] = [ '北京' ];
 cityList['浙江'] = [ '杭州市', '温州市', '金华市', '临安市' ];
 cityList['陕西'] = [ '西安', '宝鸡', '咸阳' ];
 cityList['甘肃'] = [ '兰州市', '武威市', '酒泉市', '张掖市' ];
 
quList['北京'] = [ '1区', '2区', '3区', '4区' ];
 quList['杭州市'] = [ '5区', '6区', '7区', '8区' ];
 quList['温州市'] = [ '9区', '10区', '11区', '12区' ];
 quList['西安'] = [ '13区', '14区', '15区', '16区' ];
 quList['宝鸡'] = [ '17区', '18区', '19区', '20区' ];
 quList['兰州市'] = [ '21区', '22区', '23区', '24区' ];
 
window.onload = allData;
 function allData() {
 var shengfen = document.getElementById('shengfen');
 for ( var sf in cityList) {
 shengfen.add(new Option(sf, sf));
 }
 
}
 function changeCity() {
 
var chengshi = document.getElementById('chengshi');
 var sheng = document.getElementById('shengfen').value;
 
chengshi.options.length = 1;
 for ( var cs in cityList[sheng]) {
 chengshi.add(new Option(cityList[sheng][cs], cityList[sheng][cs]));
 
}
 }
 
function changequ() {
 var shiqu = document.getElementById('shiqu');
 var cheng = document.getElementById('chengshi').value;
 shiqu.options.length = 1;
 for ( var sh in quList[cheng]) {
 
shiqu.add(new Option(quList[cheng][sh], quList[cheng][sh]));
 
}
 
}
</script>
</head>
<body>
 <br />
 
<select id="shengfen" style="width:100px" onchange="changeCity()"><option>--选择省份--</option>
 
</select>
 <select id="chengshi" style="width:100px" onchange="changequ()"><option>--选择城市--</option>
 
</select>
 <select id="shiqu" style="width:100px"><option>--选择区县--</option>
 
</select>
 
</body>
</html>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

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