---

require_once('connect.php');

$sql = "select * from introduce";

\(query = mysql_query(\)sql);

if(\(query&&mysql_num_rows(\)query)){

\(row = mysql_fetch_row(\)query);

$contact = $row[1];

}

---

改为

include_once('connect.php');

$sql = "select * from introduce";

\(query = mysqli_query(\)con,\(sql); if(\)query&&mysqli_num_rows($query)){

\(row = mysqli_fetch_row(\)query);

$contact = $row[1];

}