window对象–5

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>新建网页</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="description" content="布尔教育 http://www.itbool.com" />
<script>
/*
window.alert('haha');
window.confirm('你确定要关闭吗？');
console.log(window.navigator.cookieEnabled);   //true
*/
        console.log(window.history);
       /* console.log(window.screen.width);
        console.log(window.screen.height);
        alert(window.document);  //dom大对象
*/
        </script>
</head>
    <body>
        <input type = "button" value = "前进" onclick = "javascript.window.history.forward();"/>
        <input type = "button" value = "后退" onclick = "javascript.window.history.back();"/>
        
        
    </body>
</html>