python、js、php区别---7、面向对象
一、总结
一句话总结：
python、js、php面向对象的逻辑都是一样的，具体实现因为语言的不同而略有区别，比如python中继承用的是圆括号，比如class Bird(Animal):
""" 需求： 创建Animal类（name属性，say方法） 创建Animal类的子类Bird类（age属性，say方法） """ class Animal: def __init__(self,name): self.name = name pass def say(self): print("我是{}".format(self.name)) animal1 = Animal("大动物") animal1.say() class Bird(Animal): def __init__(self,name,age): # Animal.__init__(self,name) # super(Bird,self).__init__(name) super().__init__(name) self.age = age pass def say(self): print("我是{}，我今年{}岁，我在自由自在的飞翔".format(self.name,self.age)) monkey=Bird('大飞猴',15); monkey.say();
二、面向对象
博客对应课程的视频位置：7、面向对象
https://www.fanrenyi.com/video/33/302
1、python
""" 需求： 创建Animal类（name属性，say方法） 创建Animal类的子类Bird类（age属性，say方法） """ class Animal: def __init__(self,name): self.name = name pass def say(self): print("我是{}".format(self.name)) animal1 = Animal("大动物") animal1.say() class Bird(Animal): def __init__(self,name,age): # Animal.__init__(self,name) # super(Bird,self).__init__(name) super().__init__(name) self.age = age pass def say(self): print("我是{}，我今年{}岁，我在自由自在的飞翔".format(self.name,self.age)) monkey=Bird('大飞猴',15); monkey.say();
2、js
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <script> /* js面向对象 */ class Animal { constructor(name) { this.name = name; } say() { console.log('我是'+this.name); } } let animal1=new Animal('大动物'); animal1.say(); class Bird extends Animal { constructor(name, age) { super(name); this.age = age; } say() { console.log('我是'+this.name+','+this.age+'岁,我在自由自在的飞翔！'); } } let monkey=new Bird('大飞猴',15); monkey.say(); </script> </body> </html>
3、php
<?php /* php面向对象 */ class Animal{ function __construct($name) { $this->name = $name; } function say(){ echo "我是".$this->name." "; } } $animal1 = new Animal("大动物"); $animal1->say(); class Bird extends Animal{ function __construct($name,$age) { parent::__construct($name); $this->age = $age; } function say(){ echo "我是{$this->name}，我今年{$this->age}岁，我在自由自在的飞翔"." "; } } $monkey = new Bird("大飞猴",13); $monkey->say(); ?>