如何计算具体价值？

I use following code:

我使用以下代码:

$query = "SELECT ves, COUNT(ves) FROM books GROUP BY ves"; 
$result = mysql_query($query) or die(mysql_error());
// Print out result
while($row = mysql_fetch_array($result)){
echo "There are ". $row['COUNT(ves)'] ." books";
echo "<br />";
}
$query = "SE