复制代码 代码如下:

function copy_clip() {

var url = $("#back_info").html(); //需要复制的内容

var txt = url.substring(url.indexOf(":") + 1, url.length);

if (window.clipboardData) {

window.clipboardData.clearData();

window.clipboardData.setData("Text", txt);

alert('恭喜，复制成功！');

} else if (navigator.userAgent.indexOf("Opera") != -1) {

window.location = txt;

} else if (window.netscape) {

try {

netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");

} catch (e) {

alert("您的firefox安全限制限制您进行剪贴板操作，请在新窗口的地址栏里输入'about:config'然后找到'signed.applets.codebase_principal_support'设置为true'");

return false;

}

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);

}

}