24.盒子拖拽功能实现

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <!--<script type="text/javascript" src="jquery-3.3.1.js"></script>-->
    <!--为了兼容ie678，我们使用原生低版本的jquery-->
    <script type="text/javascript" src="jquery-1.12.4.js"></script>
    <script type="text/javascript">
        $(function () {
            var move = false;
            var x,y;
            $("div").mousedown(function (event) {
                move = true;
                var event = event || window.event;
                //div当前水平位置
                x = event.clientX - $(this).offset().left;
                //div当前竖直位置
                y = event.clientY - $(this).offset().top;
                $(document).mousemove(function(event){
                    if(move){
                        var event = event || window.event;
                        $("div").css({"left":event.clientX-x,"top":event.clientY-y})
                    }
                }).mouseup(function () {
                    move=false;
                })
            })

        })

    </script>
    <style>

        div{
            width: 100px;
            height: 100px;
            background: red;
            position: absolute;
        }
    </style>
</head>
<body>
<div></div>
</body>
</html>
posted on 2018-10-02 23:07 xxcxxc 阅读(154) 评论(0) 收藏举报