php网站首页报错 Resource id #六

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Release： 2016-06-13 12:32:40

Original

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php网站首页报错 Resource id #6
测试页面报错：
Error page: /index.php
Error infos: No database selected
Error sql: select * from c_seo where id=1

不知道问题出来哪里，有人帮我看下吗
$this->queryString 的值是select * from c_seo where id=1
$this->linkID 的值是Resource id #6

<br />
<?php<br />
<br />
function Query($id="me",$sql='')<br />
{<br />
	$this->Execute($id,$sql);<br />
}<br />
<br />
function Execute($id="me", $sql='')<br />
{<br />
	global $DB;<br />
	if($DB->isClose)<br />
	{<br />
		$this->Open(false);<br />
		$DB->isClose = false;<br />
	}<br />
	if(!empty($sql))<br />
	{<br />
		$this->SetQuery($sql);<br />
	}<br />
<br />
	//SQL语句安全检查<br />
	if($this->safeCheck)<br />
	{<br />
		CheckSql($this->queryString);<br />
	}<br />
<br />
	$this->result[$id] = mysql_query($this->queryString,$this->linkID);<br />
	if($this->result[$id]===false)<br />
	{<br />
		$this->DisplayError(mysql_error()." <br />Error sql: <font color='red'>".$this->queryString."</font>");<br />
	}<br />
}<br />
<br />
function DisplayError($msg)<br />
{<br />
	$errorTrackFile = dirname(__FILE__).'/../data/mysql_error_trace.inc';<br />
	if( file_exists(dirname(__FILE__).'/../data/mysql_error_trace.php') )<br />
	{<br />
		@unlink(dirname(__FILE__).'/../data/mysql_error_trace.php');<br />
	}<br />
	$emsg = '';<br />
	$emsg .= "<div><h3>Error Warning!</h3>\r\n";<br />
	$emsg .= "<div style='line-helght:160%;font-size:14px;color:green'>\r\n";<br />
	$emsg .= "<div style='color:blue'><br />Error page: <font color='red'>".$this->GetCurUrl()."</font></div>\r\n";<br />
	$emsg .= "<div>Error infos: {$msg}</div>\r\n";<br />
	$emsg .= "<br /></div></div>\r\n";<br />
<br />
	echo $emsg;<br />
}<br />
?>

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?Resource?id?#6