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<!DOCTYPE HTML> <html> <head> <style> .droptarget { float: left; width: 100px; height: 35px; margin: 15px; padding: 10px; border: 1px solid #aaaaaa; } </style> </head> <body> <p>在两个矩形之间来回拖动 p 元素：</p> <div class="droptarget" ondrop="drop(event)" ondragover="allowDrop(event)"> <p ondragstart="dragStart(event)" draggable="true" id="dragtarget">拖动我！</p> </div> <div class="droptarget" ondrop="drop(event)" ondragover="allowDrop(event)"></div> <p style="clear:both;" id="demo"></p> <script> function dragStart(event) { event.dataTransfer.setData("Text", event.target.id); document.getElementById("demo").innerHTML = "开始拖动p元素"; } function allowDrop(event) { event.preventDefault(); } function drop(event) { event.preventDefault(); var data = event.dataTransfer.getData("Text"); event.target.appendChild(document.getElementById(data)); document.getElementById("demo").innerHTML = "p 元素被丢弃"; } </script> </body> </html>