$num = 3.1415926;
$num = substr(sprintf("%.3f",$num),0,-1);
echo $num;
php 保留两位小数
最新推荐文章于 2025-07-07 23:54:49 发布
$num = 3.1415926;
$num = substr(sprintf("%.3f",$num),0,-1);
echo $num;