一、实现点击按钮，复制文本框中的的内容
<script type="text/javascript">function copyUrl2(){var Url2=document.getElementById("biao1");Url2.select(); // 选择对象document.execCommand("Copy"); // 执行浏览器复制命令alert("已复制好，可贴粘。");}</script><textarea cols="20" rows="10">用户定义的代码区域</textarea><input type="button" value="点击复制代码" />
二、复制专题地址和 url 地址，传给 QQ/MSN 上的好友
<!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><meta http-equiv="Content-Type" content="text/html; charset=gb2312" /><title>Js复制代码</title></head><body><p><input type="button" value="复制专题地址和url地址，传给QQ/MSN上的好友"><script language="javascript">function copyToClipBoard(){var clipBoardContent="";clipBoardContent+=document.title;clipBoardContent+="";clipBoardContent+=this.location.href;window.clipboardData.setData("Text",clipBoardContent);alert("复制成功，请粘贴到你的QQ/MSN上推荐给你的好友");}</script>
三、直接复制 url
<input type="button" value="复制URL地址"><script language="javascript">function copyUrl(){var clipBoardContent=this.location.href;window.clipboardData.setData("Text",clipBoardContent);alert("复制成功!");}</script>
四、点击文本框时，复制文本框里面的内容
<input value="你好.要copy的内容!"><script language="javascript">function oCopy(obj){obj.select();js=obj.createTextRange();js.execCommand("Copy")alert("复制成功!");}</script>
五、复制文本框或者隐藏域中的内容
<script language="javascript">function CopyUrl(target){target.value=myimg.value;target.select(); js=myimg.createTextRange(); js.execCommand("Copy");alert("复制成功!");}function AddImg(target){target.value="[IMG]"+myimg.value+"[/ img]";target.select();js=target.createTextRange(); js.execCommand("Copy");alert("复制成功!");}</script>
六、复制 span 标记中的内容
<script type="text/javascript"></script><br /><br /><script type="text/javascript">function copyText(obj) {var rng = document.body.createTextRange();rng.moveToElementText(obj);rng.scrollIntoView();rng.select();rng.execCommand("Copy");rng.collapse(false);alert("复制成功!");}</script>
七、浏览器兼容 copyToClipboard("拷贝内容")
function copyToClipboard(txt) {if (window.clipboardData) {window.clipboardData.clearData();clipboardData.setData("Text", txt);alert("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("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("复制成功！");}}
八、兼容各大浏览器的复制代码（结合ZeroClipboard.js）
<html><head><title>Zero Clipboard Test</title><script type="text/javascript" src="ZeroClipboard.js"></script><script language="JavaScript"> var clip = null; function $(id) { return document.getElementById(id); } function init() {clip = new ZeroClipboard.Client();clip.setHandCursor(true);clip.addEventListener('mouseOver', function (client) { // update the text on mouse over clip.setText( $('fe_text').value );});clip.addEventListener('complete', function (client, text) { //debugstr("Copied text to clipboard: " + text ); alert("该地址已经复制，你可以使用Ctrl+V 粘贴。");});clip.glue('clip_button', 'clip_container' ); }</script></head><body><input cols=50 rows=5 value=复制内容文本1 ><span><span><b>复制</b></span></span></body></html>
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