php四舍五入函数_PHP教程

WBOY
Release: 2016-07-13 16:55:14
Original
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这里统计了php中大量的四舍五入函数,包括有round(),ceil(),floor()等,有需要的朋友参考一下。

代码如下 复制代码
$s = rand(100,200);
$pi=pi();
$r=sqrt($s/$pi);
$qz1=round($r); //四舍五入取整
$qz2=ceil($r); //进一法取整
$qz3=floor($r); //舍去法取整

echo "随机产生的圆的面积为:".$s."
";
echo "通过除法和开方计算出的圆的半径为:".$r."
";
echo "四舍五入取整后:".$qz1."
";
echo "进一法取整后:".$qz2."
";
echo "舍去法取整后:".$qz3."
";
?>

www.bkjia.com true http://www.bkjia.com/PHPjc/631692.html TechArticle 这里统计了php中大量的四舍五入函数,包括有round(),ceil(),floor()等,有需要的朋友参考一下。 代码如下 复制代码 ?php $s = rand(100,200); $pi=pi()...
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