PHP Vehicle::speed_up示例

示例#1

文件： 07_methods_access.php 项目： Train132/RGB-Learning

<?php

class Vehicle
{
    // attributes
    private $speed;
    // constructor
    public function __construct($sp)
    {
        $this->speed = $sp;
    }
    // methods
    public function speed_up($number = 10)
    {
        $this->speed += $number;
    }
}
$bmw = new Vehicle(120);
$bmw->speed_up(25);