<!DOCTYPE HTML> <html> <head> <meta charset="UTF-8"> <title>利用 clipboardData 在网页中实现截屏粘贴的功能</title> <style type="text/css"> #box { width: 200px; height: 200px; border: 1px solid #ddd; } </style> </head> <body> <h1>利用 clipboardData 在网页中实现截屏粘贴的功能</h1> <hr /> <div><input type="text" id="testInput" placeholder="截屏后粘贴到输入框中" size="30" /></div> <script type="text/javascript"> (function () { var imgReader = function (item) { var blob = item.getAsFile(), reader = new FileReader(); reader.onload = function (e) { var img = new Image(); img.src = e.target.result; document.body.appendChild(img); }; reader.readAsDataURL(blob); }; document.getElementById('testInput').addEventListener('paste', function (e) { var clipboardData = e.clipboardData, i = 0, items, item, types; if (clipboardData) { items = clipboardData.items; if (!items) { return; } item = items[0]; types = clipboardData.types || []; for (; i < types.length; i++) { if (types[i] === 'Files') { item = items[i]; break; } } if (item && item.kind === 'file' && item.type.match(/^image//i)) { imgReader(item); } } }); })(); </script> </body> </html>