lovecoding
/
web0715


			
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

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


        window.onhashchange = function(e){
            // console.log(e);
            // console.log(obj[location.hash]);
            // console.log(location.hash);
            if(location.hash in obj){
                oBox.innerText = obj[location.hash]
            }else{
                oBox.innerText = "没有内容"
            }
        }
    </script>
</body>
</html>