jquery开关灯

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title></title>

        <script src="jquery-3.5.1.min.js" type="text/javascript" charset="utf-8"></script>

        <script type="text/javascript">
            // 入口函数
            $(document).ready(function() {
                var jqOpenLight = $("#openLight");
                var jqCloseLight = $("#closeLight");
                var jqBody = $("body");

                $(jqOpenLight).click(function() {
                    jqBody[0].style.backgroundColor = "white";
                })

                $(jqCloseLight).click(function() {
                    jqBody.get(0).style.backgroundColor = "black";
                })
            });
        </script>

        <style type="text/css">
            div {
                background-color: red;
                height: 300px;
                margin: 50px;
            }
        </style>
    </head>
    <body>
        <input type="button" name="" id="openLight" value="开灯" />
        <input type="button" name="" id="closeLight" value="关灯" />

        <div id="">

        </div>
    </body>
</html>

image

posted @ 2020-10-11 15:08  thomas_blog  阅读(21)  评论(0编辑  收藏