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网页js获取粘贴板的文字

穆熙沐 2022-03-11 阅读 70
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
	<input type="text" id="inputbox"  style="width:400px;"/>
	<br /><br />
	<input type="button" onclick="copyToInputBox()" value="从粘贴板拷贝"/>
	<input type="button" onclick="clearText()" value="清除"/>
	<br /><br />
	<a id="capText">————————————————————</a> 

    <script>
		function clearText(){
			document.getElementById('inputbox').value=''
			document.getElementById('capText').innerText='————————————————————'
		}
		
		function copyToInputBox(){
			navigator.clipboard.readText().then(text => {
				var input = document.getElementById('inputbox').value=text;
			})
			.catch(err => {
				console.error('Failed to read clipboard contents: ', err);
			});
		};
		
		document.addEventListener('paste', function (evt) {
			var pastext=evt.clipboardData.getData('text/plain')
			document.getElementById('capText').innerText=pastext
		});
    </script>
</body>

</html>
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