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<!DOCTYPE html> |
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<html lang="en"> |
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<head> |
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<meta charset="UTF-8"> |
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<meta name="viewport" content="width=device-width, initial-scale=1.0"> |
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<meta http-equiv="X-UA-Compatible" content="ie=edge"> |
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<title>方块拖动</title> |
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<style> |
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#test{ |
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background-color: purple; |
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width: 100px; |
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height: 100px; |
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position: absolute; |
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top: 500px; |
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left: 500px; |
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} |
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</style> |
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</head> |
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<body> |
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<div id="test" draggable="true"> |
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|
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</div> |
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<script> |
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window.onload=function(){ |
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let drag =document.getElementById('test'); |
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drag.ondragstart=function(e){ |
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e=e || window.event; |
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let x=e.offsetX; |
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let y=e.offsetY; |
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document.ondragover=function(e){ |
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e.preventDefault(); |
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} |
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document.ondrop=function(e){ |
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drag.style.left=e.clientX-x+"px"; |
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drag.style.top=e.clientY-y+"px"; |
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} |
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} |
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} |
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</script> |
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</body> |
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</html> |
