js復制到剪切板的實例方法

這篇文章介紹了復制到剪切板js代碼，有需要的朋友可以參考需要   復制代碼 代碼如下:

<script type="text/javascript" language="javascript">
//復制到剪切板js代碼
function copyToClipBoard(s) {
//alert(s);
if (window.clipboardData) {
window.clipboardData.setData("Text", s);
alert("已經復制到剪切板！"+ "n" + s);
} else if (navigator.userAgent.indexOf("Opera") != -1) {
window.location = s;
} else if (window.netscape) {
try {
netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
} catch (e) {
alert("被浏覽器拒絕！n請在浏覽器地址欄輸入'about:config'並回車n然後將'signed.applets.codebase_principal_support'設置為'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 = s;
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("已經復制到剪切板！" + "n" + s)
}
}</script>