<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script type="text/javascript">
window.onload = function(){
var copybtn = document.getElementById('copy');
var contenttxt = document.getElementById('content');
copybtn.onclick = function() {
contenttxt.select();
var tag = document.execCommand('Copy');
if(tag){console.log('複製內容成功!');}
}
}
</script>
</head>
<body>
<textarea rows="5" cols="40" id="content"></textarea>
<br />
<input type="button" name="" id="copy" value="複製" />
</body>
</html>
