js如何实现省市区三级联动非select下拉框版

这篇文章主要介绍了js如何实现省市区三级联动非select下拉框版，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

效果

代码如下，小白写的有点乱，大家想看的就看看

1.html代码

<div class="box">         <section class="province">省</section>         <section class="city">市</section>         <section class="area">区</section>           <div class="si">         </div> </div>

2.css代码

<style>         .box{             width: 800px;             height: 50px;             margin: 20px auto;             background-color: rgb(48, 49, 48);             border-radius: 10px;             display: flex;             justify-content: center;             align-items: center;         }         .box section{             display: inline-block;             background-color: rgb(168, 165, 165);             flex-grow: 1;             height: 30px;             margin-right: 10px;             margin-left: 10px;             border-radius: 5px;             line-height: 30px;             padding-left: 10px;         }         .box section:hover{             cursor: pointer;         }         .si{             display: none;         }         .box .all{             display: block;             width: 740px;             background-color: rgb(211, 203, 203);             padding: 20px;             position: absolute;             border-radius: 10px;             top: 57px;         }         .box .all:hover{             cursor: pointer;         }         .box .all span{             display: inline-block;             width: 130px;             height: 30px;             font-size: 13px;             padding-left: 10px;             line-height: 30px;             border-radius: 5px;             margin-left: 10px;             border: 1px solid #000;             background-color: white;             box-sizing: border-box;             margin-top: 10px;         } </style>

3.js代码

<script>         // 获取内容         var data = city_code// 这个是我的数据         // 获取省市区         var province = document.querySelector(".province")         var city = document.querySelector(".city")         var area = document.querySelector(".area")           // 获取隐藏div         var si = document.querySelector(".si")                  province.addEventListener("mouseover",function(){             si.classList.add("all")             // 选择省             var html = ""             var all = document.querySelector(".all")             for(var i = 0;i<data.length;i++){                 const provinceName = data[i].name                 const provinceID = data[i].code                 html += `<span id="${provinceID}">${provinceName}</span>`             }             all.innerHTML=html               var spanAll = document.querySelectorAll("span")             for(var j =0;j<spanAll.length;j++){                 spanAll[j].addEventListener("click",function(){                     province.innerHTML=this.innerText                     province.id=this.id                       html = ""                       // 选择市                     for(var k = 0;k<data.length;k++){                 if (data[k].code===province.id) {                     var citys = data[k].city                     for(var i = 0;i<citys.length;i++){                     html +=`<span id="${citys[i].code}">${citys[i].name}</span>`                     }                     all.innerHTML=html                     var spanAll = document.querySelectorAll("span")                     for(var j =0;j<spanAll.length;j++){                         spanAll[j].addEventListener("click",function(){                         city.innerHTML=this.innerText                         city.id=this.id                           html = ""                           //选择区                         for(var k = 0;k<citys.length;k++){                 if (citys[k].code===city.id) {                     var areas = citys[k].area                     for(var i = 0;i<areas.length;i++){                     html +=`<span id="${areas[i].code}">${areas[i].name}</span>`                     }                     all.innerHTML=html                     var spanAll = document.querySelectorAll("span")                     for(var j =0;j<spanAll.length;j++){                         spanAll[j].addEventListener("click",function(){                         area.innerHTML=this.innerText                         area.id=this.id                         si.classList.remove("all")                                          })                                    }                     break                 }             }                           })                                     }                     break                 }             }                                                   })                             }                        })   </script>

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