一款兼容性比较强的复制内容js代码，今天从别的网站搞下来了，有需要的朋友可以参考一下。
| 代码如下 |
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<script language="网页特效">
function doCopy(id){
var testCode=document.getElementById(id).innerText;
if(copy2Clipboard(testCode)!=false){
if (document.all){
var rng = document.body.createTextRange();
rng.moveToElementText(document.getElementById(id));
rng.scrollIntoView();
rng.select();
rng.collaps教程e(false);
}
alert("代码已经复制到粘贴板! ");
}else{
alert("请选中文本，使用 Ctrl+C 复制!");
}
}
copy2Clipboard=function(txt){
if(window.clipboardData){
window.clipboardData.clearData();
window.clipboardData.setData("Text",txt);
}
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，请打开'about:config'将signed.applets.codebase_principal_support'设置为true'之后重试，相对路径为firefox根目录/greprefs/all.js");
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);
}
}
</script>
<table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7">
<tr>
<td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td>
<td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onClick="doCopy('copy6839')"></td>
</tr>
<tr>
<td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy6839>fdsafdsafdsa</td>
</tr>
</table><table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7">
<tr>
<td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td>
<td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onClick="doCopy('copy1100')"></td>
</tr>
<tr>
<td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy1100>fdsafdsafdsafdsa2</td>
</tr>
</table><table width="620" align="center" border="0" cellpadding="1" cellspacing="1" style="background:#FB7">
<tr>
<td width="464" height="27" bgcolor="#FFE7CE"> 代码如下</td>
<td width="109" align="center" bgcolor="#FFE7CE" style="cursor:pointer;" onClick="doCopy('copy3052')"></td>
</tr>
<tr>
<td height="auto" colspan="2" valign="top" bgcolor="#FFFFFF" style="padding:10px;" class="copyclass" id=copy3052>fdsafdsafdsafsa3</td>
</tr>
</table></td>
</tr>
</table>
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