<script type="text/javascript"> function copyCode(id){ var testCode=document.getElementById(id).value; if(copy2Clipboard(testCode)!=false){ alert("生成的代码已经复制到粘贴板，你可以使用Ctrl+V 贴到需要的地方去了哦！ "); } } 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> <div> [<input name="" type="button" value="复制" onclick="copyCode('txtTestCode1')" />] <br> <textarea rows=2 id="txtTestCode1" style="width:500px;font-family: Verdana, Arial;font- size:12px;height:55px;border:1px solid #999999;">复制内容1</textarea> </div>