<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8" /> <title>拖拽js</title> <style type="text/css"> html, body { overflow:hidden; } body, div, { margin:0; padding:0; } body { color:#fff; font:12px/2 Arial; } p { padding:0 10px; margin-top:10px; } span { color:#ff0; padding-left:5px; } #box { position:absolute; width:300px; height:150px; background:#D5CDDA; border:2px solid #ccc; top:150px; left:400px; margin:0; } #drag { height:25px; cursor:move; background:#724a88; border-bottom:2px solid #ccc; padding:0 10px; } </style> </head> <body> <div id="box"> <div id="drag">拖动区域</div> 被拖动的整个div </div> </body> </html> <script src="js/jquery-1.10.1.min.js"></script> <script type="text/javascript"> $(function(){ moveBox($("#box"),$("#drag")) ; }) //B被拖动的div，BT可拖动区域 function moveBox(B,BT){ var bDrag = false; var _x,_y; BT.mousedown(function(event){ var e=event || window.event; bDrag = true; _x=e.pageX-B.position().left; _y=e.pageY-B.position().top; return false }) $(document).mousemove(function(event){ if(!bDrag) return false; var e=event || window.event; var x=e.pageX-_x; var y=e.pageY-_y; console.log(B.position()); var maxL = $(document).width() - B.outerWidth(); var maxT = $(document).height() - B.outerHeight(); x = x < 0 ? 0: x; x = x > maxL ? maxL: x; y = y < 0 ? 0: y; y = y > maxT ? maxT: y; B.css({left:x,top:y}); return false }).mouseup(function(){ bDrag = false; return false }) } </script>