???public?function?actionSend(){
???????$this->on('miao',[$this,'pao']);
???????$this->mao();
???????//這里函數調用,有啥區別，干嘛要用事件？？解耦嗎？
???????//$this->pao();
???}
???public?function?mao()
???{
???????echo?'貓再叫：miao,miao,miao....<br>';
???????$this->trigger('miao');
???}
???public?function?pao()
???{
???????echo?'大家快跑,快點跑跑跑...<br>';
???}
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