js簡單的可拖動的div
阿新 • • 發佈：2018-12-10
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>拖動框</title> <style> #box { width: 300px; height: 200px; background: #f0f0f0; cursor: move; position: fixed; top: 0; left: 0; } </style> </head> <body> <div id="box"> </div> </body> </html> <script type="text/javascript"> var isDragging = false; // 不可拖動 var box = document.getElementById("box") var x = null,y = null; function handleEvent(event) { switch (event.type) { case 'mousedown': isDragging = true; x = event.clientX-box.offsetLeft; y = event.clientY-box.offsetTop; break; case 'mouseup': isDragging = false; break; case 'mousemove': if(isDragging) { console.log(event.clientX) // 可以進行拖動 box.style.left = event.clientX-x+"px"; box.style.top = event.clientY-y+"px"; } break; } } box.onmousedown = handleEvent; box.onmousemove = handleEvent; box.onmouseup = handleEvent; </script>