- interface js {function ys($a, $b);
- }
- class Af implements js {
- function ys($a, $b) {
- return "加法运算...... 结果为:". ($a + $b);
- }
- }
- class Jf implements js {
- function ys($a, $b) {
- return "减法运算...... 结果为:". ($a - $b);
- }
- }
- class AAf implements js {
- function ys($a, $b) {
- return "乘法运算...... 结果为:". ($a * $b);
- }
- }
- class JJf implements js {
- function ys($a, $b) {
- return "除法运算...... 结果为:". ($a / $b);
- }
- }
- class Modf implements js {
- function ys($a, $b) {
- return "取模运算...... 结果为:". ($a % $b);
- }
- }
- class China implements js {
- public $varl = null; // 这里直接: public $varl = new nothingx(); 会出错
- function __construct() {
- $this ->varl = new nothingx();
- }
- function ys($a, $b) {
- return $this ->varl ->say();
- }
- }
- /* 也可以用继承的方式实现哟:
- class China extends nothingx implements js{
- function ys($a,$b){
- return parent::say();
- }
- }
- */
- class nothingx {
- function say() {
- return "我什么运算都不做... 只是为了实现耦合设计模式'... 我是出来打酱油的......";
- }
- }
- class test {
- private $one;
- private $two;
- public
- function __construct($x, $y) {
- $this ->one = $x;
- $this ->two = $y;
- echo "面向对象程序设计接口 Class test 初始化: 属性 $one=".$this->one."属性 $two=".$this->two."";
- }
- function display(js $a){
- return "用 PHP 接口技术实现的运算开始运算啦:".$a->ys($this->one,$this->two)."
- ";
- }
- }
- $t=new test(103,2);
- $t1=new jf;
- $t2=new China;
- echo $t->display($t1);
- echo $t->display($t2);
- ?>
来源: https://www.php1.cn/detail/php-a382490523.html