jquery坐标值操作

时间:2020-10-22 11:32:00 来源:互联网 作者: 神秘的大神 字体:

<!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>

        <style type="text/css">
            #box1 {
                background-color: yellow;
                height: 200px;
                width: 200px;
            }

            #box2 {
                background-color: red;
                height: 100px;
                width: 100px;
                position: relative;
                margin-top: 50px;
                left: 50px;
            }
        </style>

        <script type="text/javascript">
            $(document).ready(function() {
                // 只能获取不能设置
                $("#o-left-set").click(function() {
                    $("#box2").offset().left = 30;
                });
                // 距离页面最左侧的距离 和有没有定位没有关系
                $("#o-left-get").click(function() {
                    $("#p1").text("offset().left获取" + $("#box2").offset().left);
                });
                $("#p-left-get").click(function() {
                    $("#p2").text("position().left获取" + $("#box2").position().left);
                });
                $("#o-top-get").click(function() {
                    $("#p3").text("offset().top获取" + $("#box2").offset().top);
                });
                $("#p-top-get").click(function() {
                    $("#p4").text("position().top获取" + $("#box2").position().top);
                });
            });
        </script>
    </head>
    <body>
        <button type="button" id="o-left-set">offset().left设置</button>
        <button type="button" id="o-left-get">offset().left获取</button>
        <button type="button" id="p-left-get">position().left获取</button>
        <button type="button" id="o-top-get">offset().top获取</button>
        <button type="button" id="p-top-get">position().top获取</button>
        <div id="box1">
            <div id="box2">

            </div>
        </div>
        <p id="p1"></p>
        <p id="p2"></p>
        <p id="p3"></p>
        <p id="p4"></p>
    </body>
</html>
<img width="186" height="244" title="image" style="margin: 0; display: inline; background-image: none" alt="image" src="https://img2020.cnblogs.com/blog/1747317/202010/1747317-20201022113140380-1024443673.png" border="0" class="img-responsive">