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把窗口width显示在页面上，如下代码怎么不行?谢谢

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

把窗口width显示在页面上，如下代码怎么不行?谢谢

<!DOCTYPE html>
<html>
<head>
    <style>
    
    </style>
</head>
<body>
    <div class="hh">111</div>
   

</body>
    <script>
    window.onresize=function(){
        m=document.getElementsByClassName("hh")
        m.innerHTML=window.screen.width
    }
    </script>
</html>

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1 Answer

answered Jan 27, 2021 by 深蓝 (71.8m points)

 window.onresize=function(){
        m=document.getElementsByClassName("hh") 
        // 注意,这个m是个集合,类数组
        m[0].innerHTML=window.screen.width
    }
    </script>

与恶龙缠斗过久,自身亦成为恶龙；凝视深渊过久,深渊将回以凝视…

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