<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<div>大唐在线商城</div>
<script>
let oDiv = document.querySelector('div');
oDiv.oncopy = function(e) {
e.preventDefault();
let copyMsg = window .getSelection() + "大唐在线商城版权所有C2019 www.datangol.com ";
e.clipboardData.setData("Text", copyMsg);
}
</script>
</body>
</html>
此类在dw+IE11测试通过 效果不错