javascript 兼容IE和Firefox的复制到剪贴板效果

作者：袖梨 2022-06-25

提示：您可以先修改部分代码再运行

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>兼容IE和Firefox的复制到剪贴板效果</title>
<meta http-equiv="content-type" content="text/html;charset=gb2312">
</head>
<body>

<input type="text" id="copyValue" name="copyValue" value="www.zzsky.cn">
<input type="submit" value="复制到剪贴板" onclick="copyToClipboard(document.getElementById('copyValue').value);">
<script type="text/javascript">
function copyToClipboard(txt){
	//IE
	if(window.clipboardData){
		window.clipboardData.clearData();
		window.clipboardData.setData("Text", txt);
		alert("IE复制成功！");
	}
	//Firefox
	else if(window.netscape){
		try{
			netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
		}catch(e){
			alert("被浏览器拒绝！n请在浏览器地址栏输入'about:config'并回车n然后将'signed.applets.codebase_principal_support'设置为'true'");
		}
		var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
		if(!clip){
			return;
		}
		var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
		if (!trans){
			return;
		}
		trans.addDataFlavor('text/unicode');
		var str = new Object();
		var len = new Object();
		var str = Components.classes["@mozilla.org/supports-string;1"].createInstance(Components.interfaces.nsISupportsString);
		var copytext = txt;
		str.data = copytext;
		trans.setTransferData("text/unicode",str,copytext.length*2);
		var clipid = Components.interfaces.nsIClipboard;
		if (!clip){
			return false;
		}
		clip.setData(trans,null,clipid.kGlobalClipboard);
		alert("Firefox复制成功！");
	}
}
</script>
</body>
</html>

提示：您可以先修改部分代码再运行

javascript 兼容IE和Firefox的复制到剪贴板效果

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