数学乘法表
<?
for($c=1;$c<=9;$c++){
for($b=1;$b<=$c;$b++)
echo $b."×".$c."=".sprintf("%2d",$b*$c)." ";
echo "<br>" ;
}
?>
<br>
<?
for($c=9;$c>=1;$c--){
for($b=9;$b>=$c;$b--)
echo $c."×".$b."=".sprintf("%2d",$b*$c)." ";
echo "<br>" ;
}
?>