看了这篇文章:https://www.ibm.com/developerworks/cn/java/j-lo-polymorph/有一些疑问。 {代码...} 按照作者的说法,girl引用变量指向堆中的 Girl对象,所以运行的时候知道当前对象是Girl对象,找Girl的方法表...
2017-04-17回答次数:4访问次数:309
构造方法实现依赖注入 private $girl = null; public function __construct(Girl $girl) { $this->girl = $girl; }用普通方式实现依赖注入 public function buy(Girl $girl) { return '我的女朋友'.$girl->hobby(); }
2018-11-01评论:0访问次数:140
//1. 构造方法实现依赖注入class Boy1{ private $girl = null; public function __construct(Girl $girl) { $this->girl = $girl; } public function getInfo() { // $girl = new Girl(); // return '我的女朋友'.$gi
2018-11-02评论:0访问次数:171
<?phpclass Girl{ public function hobby(){return '逛街';}}class boy{ public function buy(Girl $girl) { return '女朋友'.$girl->hobby(); }}$girl = new
2019-05-05评论:0访问次数:155
//构造函数实现依赖注入class Boy1{ private $girl = null; public function __construct(Girl $girl) { $this->girl = $girl; }
2019-05-27评论:0访问次数:247
class Girl{ public function work(){ return '什么都会'; } public function hobby(){ return '什么都喜欢'; }}class Boy2{ public function buy(Girl $girl){ return '我的朋友'.$girl->hobby();
2019-03-31评论:0访问次数:107
While a lot of K-pop fans were against idols using AI, THIS 4th-gen girl group has been drawing attention for selling AI-composed albums through NFT.
2024-07-10评论:访问次数:719
Hoyoverse has their character designs down to a science, so it’s no surprise that players want all of them. If you’re interested in Ellen Joe the Shark Girl, let me show you how to get her in Zenless Zone Zero (ZZZ). How to get Ellen in Zenles
2024-07-16评论:访问次数:553
Bronte Read was flown from Mackay to Townsville by the Royal Flying Doctor Service last week before being rushed into surgery, nearly 30 hours after swallo...
2024-07-12评论:访问次数:655