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@@ -0,0 +1,69 @@
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+<!DOCTYPE html>
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+<html lang="en">
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+ <style>
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+ .box div{
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+ width: 200px;
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+ height: 120px;
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+ background-color: #aaa;
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+ color: #fff;
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+ font-size: 40px;
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+ font-weight: bolder;
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+ text-align: center;
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+ line-height: 120px;
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+ }
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+ .box{
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+ display: flex;
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+ }
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+ .box .active{
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+ background-color: #111;
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+ }
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+ </style>
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+</head>
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+<body>
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+ <div class="box">
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+ <div class="tab-btn active">first</div>
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+ <div class="tab-btn">second</div>
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+ <div class="tab-btn">third</div>
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+ </div>
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+ <script>
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+ let tabBtns = document.querySelectorAll('.tab-btn');
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+ let hashArr = ["first","second","third"];
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+ tabBtns.forEach((item,index)=>{
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+ item.onclick = function(){
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+ // 管理选中状态
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+ // tabBtns.forEach((item)=>{
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+ // item.classList.remove("active");
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+ // });
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+ // this.classList.add("active");
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+ // 管理hash
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+ location.hash = hashArr[index]
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+ }
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+ })
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+
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+ // 监听hash变化
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+ window.onhashchange = function(){
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+ // 获取hash值
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+ let hashVal = location.hash.slice(1);
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+ // 根据hash值，管理选中状态
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+ // 获取hash值对应的索引
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+ // let index = hashArr.indexOf(hashVal);
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+ let index = hashArr.findIndex((item)=>{
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+ // if(item == hashVal){
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+ // return true;
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+ // }
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+ return item == hashVal;
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+ })
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+ tabBtns.forEach((item)=>{
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+ item.classList.remove("active");
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+ });
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+ tabBtns[index].classList.add("active");
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+ }
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+
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+
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+ </script>
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+</body>
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+</html>
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