lovecoding
/
W250511


			
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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>
    <h1>内容一</h1>
    <button id="btn1">按钮一</button>
    <button id="btn2">按钮二</button>
    <button id="btn3">按钮三</button>
    <script>
        var oBtn1 = document.querySelector("#btn1");
        var oBtn2 = document.querySelector("#btn2");
        var oBtn3 = document.querySelector("#btn3");
        var oH1 = document.querySelector("h1");

        oBtn1.onclick = function () {
            // 向历史记录中添加一条记录 history.pushState
            // 一共有两个参数 第一个参数是状态值 第二个参数是标题（一般不用传输但必有这个参数所以传空值）
            history.pushState(1,"");
            oH1.innerText = "内容一";
        }
        oBtn2.onclick = function () {
            history.pushState(2,"");
            oH1.innerText = "内容二";
        }
        oBtn3.onclick = function () {
            history.pushState(3,"");
            oH1.innerText = "内容三";
        }

        // 监听history值的变化
        window.onpopstate = function(){
            console.log(history.state);
            if(history.state == 1){
                oH1.innerText = "内容一";
            }else if(history.state == 2){
                oH1.innerText = "内容二";
            }else if(history.state == 3){
                oH1.innerText = "内容三";
            }
        }


    </script>
</body>

</html>