mysql错误，急！
Warning: mysql_fetch_assoc() expects parameter 1 to be resource, boolean given in D:\wamp1\www\empmanage\empMain.php on line 37
大致代码如下
$sql="select * from emp limit".($pageNow-1)*$pageSize.",$pageSize";
$res2=mysql_query($sql,$conn);
37行 while($row=mysql_fetch_assoc($res2)){
echo "
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