function InsertHTML(value)
{
tinyMCE.execCommand('mceInsertContent',false,value);
}

<script type="text/javascript" src="https://www.jb51.net/tinymce/tiny_mce.js"></script>
<script type="text/javascript">
tinyMCE.init({
// General options
convert_urls : false,
mode : "exact",
elements : "Article_Content",
//mode : "textareas",
theme : "advanced",
plugins : "safari,pagebreak,style,layer,table,save,advhr,advimage,advlink,emotions,iespell,inlinepopups,insertdatetime,preview,media,searchreplace,print,contextmenu,paste,directionality,fullscreen,noneditable,visualchars,nonbreaking,xhtmlxtras,template,wordcount",
// Theme options
theme_advanced_buttons1 : "save,newdocument,|,bold,italic,underline,strikethrough,|,justifyleft,justifycenter,justifyright,justifyfull,styleselect,formatselect,fontselect,fontsizeselect",
theme_advanced_buttons2 : "cut,copy,paste,pastetext,pasteword,|,search,replace,|,bullist,numlist,|,outdent,indent,blockquote,|,undo,redo,|,link,unlink,anchor,image,cleanup,help,code,|,insertdate,inserttime,preview,|,forecolor,backcolor",
theme_advanced_buttons3 : "tablecontrols,|,hr,removeformat,visualaid,|,sub,sup,|,charmap,emotions,iespell,media,advhr,|,print,|,ltr,rtl,|,fullscreen",
theme_advanced_buttons4 : "insertlayer,moveforward,movebackward,absolute,|,styleprops,|,cite,abbr,acronym,del,ins,attribs,|,visualchars,nonbreaking,template,pagebreak",
theme_advanced_toolbar_location : "top",
theme_advanced_toolbar_align : "left",
theme_advanced_statusbar_location : "bottom",
theme_advanced_resizing : true,
// Example content CSS (should be your site CSS)
content_css : "css/content.css",
// Drop lists for link/image/media/template dialogs
template_external_list_url : "lists/template_list.js",
external_link_list_url : "lists/link_list.js",
external_image_list_url : "lists/image_list.js",
media_external_list_url : "lists/media_list.js",
// Replace values for the template plugin
template_replace_values : {
username : "Some User",
staffid : "991234"
}
});
</script>
<script type="text/javascript">
function InsertHTML(value)
{
tinyMCE.execCommand('mceInsertContent',false,value);
}
</script>

<input name="button" type="button" onclick="window.open('insertcode.php','插入代码','height=500, width=600, top=300, left=300, toolbar=no, menubar=no, scrollbars=no, resizable=no,location=no, status=no')" value="点击这里插入代码" />

<script language="javascript" src="http://www.gosoa.com.cn/js/jquery.js"></script>
<script language="javascript">
function insertcode()
{
var value = $('#postcontent').html();
var codetype = $('#codetype').val();
// window.opener.InsertHTML('<textarea rows="3" cols="50" name="code" class="'+codetype+'">'+value+'</textarea>');
window.opener.InsertHTML('<pre name="code" class="'+codetype+'">'+value+'</pre>');
window.close();
}
</script>

<?php
error_reporting(0);
$content = $_POST['content'];
if(!empty($content))
{
    $codetype = $_POST['codetype'];
    echo '<div id="postcontent">';
    $content = htmlspecialchars($content);
    echo $content;
    echo '</div>
    <input type="hidden" name="codetype" id="codetype" value="'.$codetype.'" />
    <input type="button" name="Submit" value="提交" onclick="insertcode()" style="border:1px solid #000; line-height:18px; width:60px;"/>';
}else
{
?>
<div style="margin:0 auto">
<form id="form1" name="form1" method="post" action="insertcode.php">
<label>选择要插入的代码类型
<select name="codetype" id="codetype">
    <option value='php'>php</option>
    <option value='js'>js</option>
    <option value='html'>html</option>
    <option value='c'>c</option>
    <option value='asp'>asp</option>
    <option value='xml'>xml</option>
    <option value='java'>java</option>
    <option value='java'>java</option>
    <option value='CSharp'>C#</option>
    <option value='sql'>SQL</option>
</select>
</label>
<label>
<textarea name="content" id="content" cols="30" rows="20" style="width:600px; height:200px; border:1px dashed #333"></textarea>
</label>
<p>
<label style="padding-left:50px;">
<input type="Submit" name="Submit" value="提交" style="border:1px solid #000; line-height:18px; width:60px;"/>
</label>
</p>
<p>&nbsp;</p>
</form>
</div>
<?php
}    
?>

<?
$Article_Content = $_POST['Article_Content'];
function transcode($str)
{
if(empty($str))
{
return false;
}
$str = str_replace('"','"',$str);
$str = str_replace('','',$str);
$str = str_ireplace('&lt;BR&gt;',"n",$str);
$str = str_ireplace('<pre','<pre name="code" ',$str);
return $str;
}
echo transcode($Article_Content);
?>
<script class="javascript" src="/tinymce/lightcode/Scripts/shCore.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushCSharp.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushPhp.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushJScript.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushJava.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushVb.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushSql.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushXml.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushDelphi.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushPython.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushRuby.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushCss.js"></script>
<script class="javascript" src="/tinymce/lightcode/Scripts/shBrushCpp.js"></script>
<script class="javascript">
dp.SyntaxHighlighter.HighlightAll('code');
</script>