W3School TIY Editor
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<!DOCTYPE HTML> <html> <head> <style> #div1, #div2 { float: left; width: 218px; height: 86px; margin: 10px; padding: 20px; border: 1px solid black; box-sizing: border-box; } </style> <script> function dragstartHandler(ev) { ev.dataTransfer.setData("text", ev.target.id); } function dragoverHandler(ev) { ev.preventDefault(); } function dropHandler(ev) { ev.preventDefault(); const data = ev.dataTransfer.getData("text"); ev.target.appendChild(document.getElementById(data)); } </script> </head> <body> <h1>拖放 API</h1> <p>在两个 div 元素之间来回拖拽图像。</p> <div id="div1" ondrop="dropHandler(event)" ondragover="dragoverHandler(event)"> <img id="img1" src="/i/html/dragdrop_w3school.gif" draggable="true" ondragstart="dragstartHandler(event)" width="178" height="46"> </div> <div id="div2" ondrop="dropHandler(event)" ondragover="dragoverHandler(event)"></div> </body> </html>