{"id":234,"title":"\u63a5\u53e3\u4e0e\u591a\u6001","good":0,"bad":0,"hit":2041,"created_at":"2016-05-21 19:20:57","content":"<p>&lt;?php<br\/>\/**<br\/> * \u63a5\u53e3<br\/> * \u63a5\u53e3\u4e2d\u7684\u65b9\u6cd5\u6ca1\u6709\u65b9\u6cd5\u5b9e\u73b0<br\/> * \u5982\u679c\u4e00\u4e2a\u7c7b\u8981\u5b9e\u73b0\u67d0\u4e00\u4e2a\u63a5\u53e3\u7528implements\u6765\u5b9e\u73b0<br\/> * \u4e14\u5fc5\u987b\u5b9e\u73b0\u63a5\u53e3\u4e2d\u7684\u6240\u6709\u65b9\u6cd5<br\/> *\/<br\/>&lt;?php<br\/>\/**<br\/> * \u63a5\u53e3<br\/> * \u63a5\u53e3\u4e2d\u7684\u65b9\u6cd5\u6ca1\u6709\u65b9\u6cd5\u5b9e\u73b0<br\/> * \u5982\u679c\u4e00\u4e2a\u7c7b\u8981\u5b9e\u73b0\u67d0\u4e00\u4e2a\u63a5\u53e3\u7528implements\u6765\u5b9e\u73b0<br\/> * \u4e14\u5fc5\u987b\u5b9e\u73b0\u63a5\u53e3\u4e2d\u7684\u6240\u6709\u65b9\u6cd5<\/p><p>*\u63a5\u53e3\u91cc\u7684\u65b9\u6cd5\u53ef\u4ee5\u6709\u4e0d\u540c\u7684\u5b9e\u73b0\uff0c\u8fd9\u91cc\u5c31\u662f\u591a\u6001\u7684\u7279\u6027<br\/><\/p><p>*\/<br\/><br\/>interface media{<br\/> &nbsp; &nbsp;public function music();\/\/\u63a5\u53e3\u7c7b\u4e2d\u7684\u65b9\u6cd5\u6ca1\u6709\u65b9\u6cd5\u5b9e\u73b0<br\/> &nbsp; &nbsp;public function movie();<br\/>}<br\/>interface media1 extends media{\/\/\u63a5\u53e3\u53ef\u4ee5\u7ee7\u627f\u53e6\u5916\u7684\u63a5\u53e3<br\/> &nbsp; &nbsp;public function music1();<br\/>}<br\/>class tv implements media1{\/\/\u5fc5\u987b\u5b9e\u73b0\u4e24\u4e2a\u63a5\u53e3\u4e2d\u7684\u6240\u6709\u65b9\u6cd5<br\/><br\/> &nbsp; &nbsp;public function music(){<br\/> &nbsp; &nbsp; &nbsp; &nbsp;echo &#39;i can play music&#39;;<br\/> &nbsp; &nbsp;}<br\/><br\/> &nbsp; &nbsp;public function movie(){<br\/> &nbsp; &nbsp; &nbsp; &nbsp;echo &#39;&lt;br\/&gt;i can play movie&#39;;<br\/> &nbsp; &nbsp;}<br\/><br\/> &nbsp; &nbsp;public function music1()<br\/> &nbsp; &nbsp;{<br\/> &nbsp; &nbsp; &nbsp; &nbsp;echo &#39;&lt;br\/&gt; ican play music1&#39;;<br\/> &nbsp; &nbsp;}<br\/>}<br\/><br\/>class radio implements media{\/\/\u5bf9\u540c\u4e00\u4e2a\u63a5\u53e3\u5b9a\u4e49\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u6709\u4e0d\u540c\u7684\u5b9e\u73b0\uff0c\u8fd9\u91cc\u4f53\u73b0\u51fa\u591a\u6001\u7684\u7279\u6027<br\/> &nbsp; &nbsp;public function music()<br\/> &nbsp; &nbsp;{<br\/> &nbsp; &nbsp; &nbsp; &nbsp;echo &#39;&lt;br\/&gt;radio can play music&#39;;<br\/> &nbsp; &nbsp;}<br\/> &nbsp; &nbsp;public function movie()<br\/> &nbsp; &nbsp;{<br\/> &nbsp; &nbsp; &nbsp; &nbsp;echo &#39;&lt;br\/&gt; radio can not play tv&#39;;<br\/> &nbsp; &nbsp;}<br\/>}<br\/><br\/>$tv1=new tv();<br\/>$tv1-&gt;music();<br\/>$tv1-&gt;movie();<br\/>$tv1-&gt;music1();<br\/>if($tv1 instanceof media){<br\/> &nbsp; &nbsp;echo &#39;&lt;br\/&gt;tv1\u5b9e\u73b0\u4e86media\u63a5\u53e3&#39;;<br\/>}<br\/>if($tv1 instanceof media1){<br\/> &nbsp; &nbsp;echo &#39;&lt;br\/&gt;tv1\u5b9e\u73b0\u4e86media1\u63a5\u53e3&#39;;<br\/>}<br\/><br\/>$tv1=new tv();<br\/>$tv1-&gt;music();<br\/>$tv1-&gt;movie();<br\/>$tv1-&gt;music1();<br\/>if($tv1 instanceof media){<br\/> &nbsp; &nbsp;echo &#39;&lt;br\/&gt;tv1\u5b9e\u73b0\u4e86media\u63a5\u53e3&#39;;<br\/>}<br\/>if($tv1 instanceof media1){<br\/> &nbsp; &nbsp;echo &#39;&lt;br\/&gt;tv1\u5b9e\u73b0\u4e86media1\u63a5\u53e3&#39;;<br\/>}<\/p><p><br\/><\/p><p>\u8fd0\u884c\u7ed3\u679c\uff1a<br\/><\/p><p>i can play music<br\/>i can play movie<br\/> ican play music1<br\/>tv1\u5b9e\u73b0\u4e86media\u63a5\u53e3<br\/>tv1\u5b9e\u73b0\u4e86media1\u63a5\u53e3<\/p>"}