导航调用错误

    Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in D:\wwwroot\szsunqitcom\wwwroot\inc\function.php on line 174

    Warning: mysql_num_rows() expects parameter 1 to be resource, boolean given in D:\wwwroot\szsunqitcom\wwwroot\inc\function.php on line 174
    鏁版嵁鏌ヨ閿欒You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') order by id desc' at line 1
    Fatal error: Cannot break/continue 1 level in D:\wwwroot\szsunqitcom\wwwroot\product.php on line 30