小编Wel*_*ala的帖子

document.getElementByTagName不是函数

该代码应该在<script>包含mouseover事件的标记之间使用javascript ,并且HTML页面中的列表项必须按如下方式设置样式:normal - black,12,bold和over yellow,15,bold,italic.

<html>
<head>
<title> Using mouseover eve </title>
<script language = "javascript">
<!--
    function changeStyle() {

        var item = document.getElementByTagName("li");
        item.style.color = "yellow";
        item.style.fontSize = "15pt";
            item.style.fontWeight = "bold";
        item.style.fontStyle = "italic";

    }
-->
</script>
</head>
<body>
<ul style = "color: black; font-size: 12pt; font-weight: bold" >
    <li onMouseOver = "changeStyle()"> item 1 </li>
    <li onMouseOver = "changeStyle()"> item 2 </li>
</ul>
</body>
</html>
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javascript

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