【語言比較】1.class

JAVA 

class:

class a01{

    private int x;

    int y;

   

    public void setx(int x){

        this.x = x;

    }

   

    public int getx(){

        return this.x;

    }

   

    public int area(){

        return this.x * this.y;

    }

}

使用

a01 a = new a01();

a.setx(10);

a.y = 20;

system.out.print(a.area());

ObjectiveC

a01.h檔

@property int x,y;

- (void) setx:(int)x;

- (int) getx();

- (int) area();

a01.m檔

@synthesize x,y;

- (void) setx:(int)setX{

    x = setX;

}

- (int) getx(){

  return x;

}

- (int) area(){

  return x*y;

}

使用

a01 *a = [[a01 alloc] init]

[a setx:10]

a.y = 20;

NSLog(@"%i",[a area]);

PHP

class:

class a01{

private $x;

public $y;

public function setx($x){

$this->x = $x;

} 

public function getx(){

return $this->x;

}

public function area(){

return $this->x * $this->y;

}

}

使用

$a = new a01();

$a->setx(10);

$a->y = 20;

echo $a->area();

Javascript (網頁)

class:

function a01() {  

this.x;

this.y;

    this.setx = function(x) {  

        this.x = x;

    }

this.getx = function(){

return this.x;

}

this.area = function(){

return this.x * this.y;

}

}

使用

var a = new a01();

a.setx(10);

a.y = 20;

document.write(a.area());