js简单菜单三级联动

Posted 2020-09-16 Harry-
tags:
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>js三级联动</title>
<style>
    .nav {
        background:url(images/jizhongkuanghuan.jpg) no-repeat;
        margin:0 auto;
        height:auto;
        width:100%;
        overflow:hidden;}
     #btn {
         margin:630px auto;
         width:30%;}
    select { text-align:center}   
</style>
</head>

<body>
<div class="nav">
<div id=btn>
<select id="province" onchange="getCity()"></select>  
<select id="city" onchange="getX()"></select>
<select id="xian" onchange="getPf()"></select>
<div id="pf"></div>
</div>
</div>
<script>
    var p = ["辅助","上单","中单","打野","射手"];
    var c = [["锤石","琴瑟仙女","荒野嫖客","蕾欧娜","布里茨"],
    ["瑞萌萌","潘森","诺克","无双剑姬","青钢影"],
    ["乐芙兰","劫","亚索","复仇焰魂","潮汐海灵"],
    ["盲僧","赵信","卡兹克","奈德丽","伊芙琳"],
    ["麦林炮手","复仇之矛","逆羽","维鲁斯","金克斯"]];
    var x = [[["skt","腥红之月"],["情人节限定","龙年限定"],["阿里斯塔","玫瑰"],["蕾欧娜","泳池派对"],["苹果机器人","擂台皇帝"]],
    [["瑞文","冠军之刃"],["潘森","屠龙勇士"],["诺克","灌篮高手"],["剑姬","源计划"],["青钢影","卡密尔"]],
    [["妖姬","万圣节"],["劫","源计划"],["西部牛仔","源计划"],["复仇焰魂","丧尸"],["小鱼人","大白兔"]],
    [["拳皇","龙年限定"],["赵信","子龙"],["卡兹克","螳螂"],["奈德丽","豹女"],["伊芙琳","寡妇"]],
    [["小炮","烈火雄心"],["卡莉斯塔","复仇之矛"],["逆羽","霞"],["情人节","苍穹之光"],["龙年限定","魔法少女"]]];
    var f = [[["chuishi","chuishi2"],["qinnv2","qinnv"],["niu","niu2"],["leiouna","leiouna2"],["bulici","bulici2"]],            [["ruiwen","ruiwen2"],["pansen","pansen2"],["nuoke","nuoke2"],["wushuangjianji","wushuangjianji2"],["qinggangying","qinggangying2"]],
    [["lefulan","lefulan2"],["jie","jie2"],["yasuo","yasuo2"],["huonan","huonan2"],["xiaoyu","xiaoyu2"]],
    [["xiazi","xiazi2"],["juhua","juhua2"],["kazike","kazike2"],["naideli","naideli2"],["guafu","guafu2"]],
    [["mailin","xiaopao2"],["fuchou","fuchouzhimao2"],["niyu","niyu2"],["weilusi","weilusi2"],["jinlesi","jinlesi2"]]];
    var temp = "";
    for(i=0;i<p.length;i++){
        temp += "<option value="+i+">"+p[i]+"</option>";
        }
    document.getElementById("province").innerHTML = temp;
    
    function getCity(){
        var getProv = document.getElementById("province").value;
        var temp = "";
        for(i=0;i<c[getProv].length;i++){
            temp += "<option value="+i+">"+c[getProv][i]+"</option>";
            }
        document.getElementById("city").innerHTML = temp;
        
        getX();
        }
        
    function getX(){
        var getProv = document.getElementById(三级联动下拉菜单
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