Jeson的博客

<?php class functions { //随机生成0.1到10的随机数 public static function getNumber(){ $arr = ['0.1','0.2','0.3','0.4','0.5','0.6','0.7','0.8','0.9','1','1.1','1.2','1.3','1.4','1.5','1.6','1.7','1.8','1.9','2','2.1','2.2','2.3','2.4','2.5','2.6','2.7','2