JavaScript表单鼠标经过变色 

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>

</style>

<body>

    <table class="dataintable">
        <thead>
            <tr>
                <th>类型</th>
                <th>描述</th>
            </tr>
        </thead>
        <tbody>
            <tr>
                <td>text</td>
                <td>定义常规文本输入。</td>
            </tr>

            <tr>
                <td>radio</td>
                <td>定义单选按钮输入（选择多个选择之一）</td>
            </tr>

            <tr>
                <td>submit</td>
                <td>定义提交按钮（提交表单）</td>
            </tr>
        </tbody>
    </table>

</body>

</html>
<script>
let tr=document.querySelector('tbody').querySelectorAll('tr');
for (let i = 0; i < tr.length; i++) {
//鼠标经过变粉色
    tr[i].onmouseover=function()
    {
        this.style.backgroundColor='pink';
        
    }
//鼠标离开变空
    tr[i].onmouseout=function()
    {
        
        this.style.backgroundColor='';
    }
    
}
</script>

 

posted @ 2022-08-02 23:59  仲夏不凉爽  阅读(295)  评论(0)    收藏  举报