PHP pa和ma

Posted 2020-09-28 GoodByeZ

 1 <?php
 2 
 3 class Mouse
 4 {
 5     private $color;
 6     public $sex;
 7 
 8     public function __construct($role){
 9         switch($role){
10             case \'pa\':
11                 $this->color = \'black\';
12                 $this->sex = \'male\';
13                 break;
14             case \'ma\':
15                 $this->color = \'white\';
16                 $this->sex = \'female\';
17                 break;
18             default:
19                 throw new Exception(\'pa Or ma,please!\');
20         }
21     }
22 
23     public function getColor(Mouse $mouse){
24         if($mouse->sex == $this->sex){
25             var_dump($this->color);
26         }else{
27             var_dump(\'*****\');
28         }
29     }
30 
31     public function mateWithMa(Mouse $ma){
32         if($this->sex == \'male\' && $ma->sex = \'female\'){
33             var_dump(\'You have been trust by ma\');
34             $ma->color = $this->color;
35             var_dump("success to mate! ma\'s color :" .($ma->color));
36         }
37     }
38 
39     public function mateWithPa(Mouse $pa){
40         if($this->sex == \'female\' && $pa->sex == \'male\'){
41             var_dump(\'You have been trust by pa\');
42             $pa->color = $this->color;
43             var_dump("success to mate! pa\'s color :" .($pa->color));
44         }
45     }
46 }
47 
48 var_dump(\'The First Couple :\');
49 $pa1 = new Mouse(\'pa\');
50 $ma1 = new Mouse(\'ma\');
51 $pa1->mateWithMa($ma1);
52 $ma1->mateWithPa($pa1);
53 
54 echo "\\n";
55 
56 var_dump(\'The Second Couple :\');
57 $pa2 = new Mouse(\'pa\');
58 $ma2 = new Mouse(\'ma\');
59 $ma2->mateWithPa($pa2);
60 $pa2->mateWithMa($ma2);

 

 

此文相关php知识点见 ：http://www.php-internals.com/book/?p=chapt05/05-03-class-visibility