• 纯javaScript实现div层拖动/移位效果 推荐学习


    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
    <html>  
     <head>  
        <title>dragDiv.html</title>  
          
        <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">  
        <meta http-equiv="description" content="this is my page">  
        <meta http-equiv="content-type" content="text/html; charset=UTF-8">  
        <style type="text/css">  
          body {  
                font-family:Verfana;  
                font-size:11px;  
                color:#333333;  
            }  
           #win {  
                position:absolute;  
                left:50px;  
                top:50px;  
                200px;  
                height:150px;  
                border:1px solid #000000;  
                background:yellow;  
            }  
        </style>  
        <script type="text/javascript">  
           var win;  
           var left = 50;  
           var top = 50;  
           var move = false;  
            function init() {  
                win = document.getElementById("win");  
                win.onmousedown = startDrag;  
                win.onmousemove = drag;  
                win.onmouseup = stopDrag;  
          }  
             
            window.onload = init;  
             
           function startDrag(event) {  
                event = event || window.event;  
                var x = event.pageX || event.x;  
                var y = event.pageY || event.y;  
                left = x - left;  
                top = y - top;  
                win.style.background = "red";  
                move = true;  
          }  
              
         function drag(event) {  
                if(move) {  
                event = event || window.event;  
                   win.style.background = "blue";  
                   var x = event.pageX || event.x;  
                   var y = event.pageY || event.y;  
                   win.style.left = x - left + "px";  
                   win.style.top = y - top + "px";  
                 //captureEvents();  
                    //win.setCapture();  
                 if (!window.captureEvents) {   
                      win.setCapture();      
                } else {  
                     captureEvents();      
                       //window.captureEvents(Event.MOUSEMOVE|Event.MOUSEUP);      
                  }      
                }  
         }  
             
            function stopDrag(event) {  
               event = event || window.event;  
               win.style.background="yellow";  
               var x = event.pageX || event.x;  
               var y = event.pageY || event.y;  
               left = x - left;  
               top = y - top;  
               move = false;  
               //routeEvent();  
              //win.releaseCapture();  
             if (!window.releaseEvents) {   
                  win.releaseCapture();      
               } else {      
                    releaseEvents();  
                   //window.releaseEvents(Event.MOUSEMOVE|Event.MOUSEUP);      
                }  
            }  
        </script>  
      </head>  
    <body>  
        <div id="win">  
        </div>  
    </body>  
    </html>  
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  • 原文地址:https://www.cnblogs.com/wuhuisheng/p/2705718.html
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