golang的面向对象

php 代码

<?php

class Cat {
    private $age;
    private $color;

    public function __construct($age, $color) {
        $this->age = $age;
        $this->color = $color;
    }

    public function getAge() {
        return $this->age;
    }

    public function getColor() {
        return $this->color;
    }

    public function eat() {
        echo "Cat is eating.\n";
    }

    public function sleep() {
        echo "Cat is sleeping.\n";
    }
}

$myCat = new Cat(3, 'brown');
echo "Age: " . $myCat->getAge() . "\n";
echo "Color: " . $myCat->getColor() . "\n";
$myCat->eat();
$myCat->sleep();

?>

golang

package main

import "fmt"

// Cat 结构体
type Cat struct {
    age   int
    color string
}

func NewCat(age int, color string) *Cat {
    return &Cat{age, color}
}

func (c *Cat) GetAge() int {
    return c.age
}

func (c *Cat) GetColor() string {
    return c.color
}

func (c *Cat) Eat() {
    fmt.Println("Cat is eating.")
}

func (c *Cat) Sleep() {
    fmt.Println("Cat is sleeping.")
}

func main() {

    myCat := NewCat(3, "brown")
    fmt.Println("Age:", myCat.GetAge())
    fmt.Println("Color:", myCat.GetColor())
    myCat.Eat()
    myCat.Sleep()
}