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@@ -0,0 +1,41 @@
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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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+</head>
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+
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+<body>
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+ <div class="box"></div>
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+ <button id="btn">按钮</button>
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+ <script>
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+ var oBtn = document.getElementById("btn");
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+ let oBox = document.querySelector(".box");
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+ var i = 1;
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+ var obj = {};
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+ oBtn.onclick = function(){
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+ // console.log(window.location)
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+ // window.location.href = "https://www.baidu.com";
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+ // location.hash = "haha";
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+ var str = `第${i}个页面`;
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+ oBox.innerText = str;
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+ location.hash = i;
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+ obj['#'+i] = str;
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+ i++;
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+ }
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+
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+
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+ window.onhashchange = function(e){
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+ // console.log(e);
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+ // console.log(obj[location.hash]);
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+ // console.log(location.hash);
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+ if(location.hash in obj){
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+ oBox.innerText = obj[location.hash]
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+ }else{
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+ oBox.innerText = "没有内容"
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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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