<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>history</title>
</head>
<body>
<!-- 历史 history   -->

<a href="forward.html">前进页面</a>
<a href="back.html">后退页面</a>

<button onclick="forward()" >前进按钮</button>
<button onclick="back()" >后退按钮</button>
<script>
    function forward(){
        // history.forward();
        // history.go(2)
    }

    function back(){
        history.back();
    }

</script>
</body>
</html>