【php开源代码栏目提醒】:本文主要为网学会员提供code3.11.php,希望对需要code3.11.php网友有所帮助,学习一下!
<?php
class Area
{
const num=3.1415;
public function FirstSum($r)
{
return self::num * $r * $r;
}
}
$s = new Area();
echo "∏的值为:".Area::num."<br/>";
echo "所求圆面积是: ";
echo $s->FirstSum(10);
?>