{"id":23616,"date":"2024-11-21T10:08:30","date_gmt":"2024-11-21T02:08:30","guid":{"rendered":"https:\/\/fwq.ai\/blog\/23616\/"},"modified":"2024-11-21T10:08:30","modified_gmt":"2024-11-21T02:08:30","slug":"%e5%88%a9%e7%94%a8thinkphp6%e5%ae%9e%e7%8e%b0%e5%a4%9a%e6%80%81","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/23616\/","title":{"rendered":"\u5229\u7528ThinkPHP6\u5b9e\u73b0\u591a\u6001"},"content":{"rendered":"<p>\u968f\u7740web\u5e94\u7528\u7a0b\u5e8f\u7684\u53d1\u5c55\uff0c\u5f88\u591a\u4e1a\u52a1\u90fd\u9700\u8981\u4e3a\u7528\u6237\u63d0\u4f9b\u66f4\u52a0\u7075\u6d3b\u3001\u66f4\u52a0\u591a\u6837\u5316\u7684\u64cd\u4f5c\u65b9\u5f0f\u3002\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u591a\u6001\uff0c\u5b83\u662f\u9762\u5411\u5bf9\u8c61\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u6838\u5fc3\u6982\u5ff5\u4e4b\u4e00\u3002\u591a\u6001\u53ef\u4ee5\u8ba9\u4e0d\u540c\u7684\u5b50\u7c7b\u5bf9\u8c61\u5bf9\u540c\u4e00\u4e2a\u65b9\u6cd5\u505a\u51fa\u4e0d\u540c\u7684\u54cd\u5e94\u3002\u8fd9\u4e0d\u4ec5\u589e\u5f3a\u4e86\u4ee3\u7801\u7684\u590d\u7528\u6027\u548c\u53ef\u6269\u5c55\u6027\uff0c\u4e5f\u4e3a\u7528\u6237\u4f53\u9a8c\u5e26\u6765\u4e86\u66f4\u597d\u7684\u611f\u53d7\u3002<\/p>\n<p>\u5728Web\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5229\u7528\u591a\u6001\u53ef\u4ee5\u8ba9\u6211\u4eec\u5b9e\u73b0\u66f4\u52a0\u667a\u80fd\u5316\u7684\u64cd\u4f5c\uff0c\u4f8b\u5982\uff1a\u5f53\u7528\u6237\u63d0\u4ea4\u6ce8\u518c\u4fe1\u606f\u65f6\uff0c\u6211\u4eec\u9700\u8981\u5bf9\u8fd9\u4e9b\u4fe1\u606f\u8fdb\u884c\u5404\u79cd\u68c0\u9a8c\uff0c\u4ee5\u786e\u4fdd\u5b83\u4eec\u7684\u5408\u6cd5\u6027\u3002\u800c\u8fd9\u4e9b\u68c0\u9a8c\u53ef\u80fd\u662f\u591a\u79cd\u591a\u6837\u7684\uff0c\u5305\u62ec\uff1a\u9a8c\u8bc1\u90ae\u4ef6\u5730\u5740\u3001\u9a8c\u8bc1\u7528\u6237\u540d\u3001\u9a8c\u8bc1\u5bc6\u7801\u5f3a\u5ea6\u7b49\u7b49\u3002\u5982\u679c\u6211\u4eec\u4f7f\u7528\u4f20\u7edf\u7684if\/else\u8bed\u53e5\u6765\u8fdb\u884c\u68c0\u9a8c\uff0c\u90a3\u4e48\u4ee3\u7801\u4f1a\u53d8\u5f97\u975e\u5e38\u81c3\u80bf\uff0c\u4e5f\u5f88\u96be\u6269\u5c55\u3002\u800c\u5982\u679c\u6211\u4eec\u5229\u7528\u591a\u6001\u6765\u5b9e\u73b0\u8fd9\u4e9b\u68c0\u9a8c\u903b\u8f91\uff0c\u90a3\u4e48\u4ee3\u7801\u4f1a\u53d8\u5f97\u975e\u5e38\u7b80\u6d01\u3001\u6613\u4e8e\u6269\u5c55\uff0c\u4e5f\u66f4\u52a0\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n<p>\u672c\u6587\u5c31\u662f\u8981\u4ecb\u7ecd\u5982\u4f55\u5229\u7528ThinkPHP6\u6846\u67b6\u6765\u5b9e\u73b0\u591a\u6001\u3002<\/p>\n<p>\u4e00\u3001\u4ec0\u4e48\u662f\u591a\u6001\uff1f<\/p>\n<p>\u591a\u6001\uff08Polymorphism\uff09\u662f\u9762\u5411\u5bf9\u8c61\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u6838\u5fc3\u6982\u5ff5\u4e4b\u4e00\uff0c\u5b83\u662f\u6307\u540c\u6837\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u9488\u5bf9\u4e0d\u540c\u7684\u5bf9\u8c61\uff0c\u53ef\u4ee5\u6709\u4e0d\u540c\u7684\u5b9e\u73b0\u65b9\u5f0f\u548c\u8fd4\u56de\u7ed3\u679c\u3002\u5728\u7ee7\u627f\u5173\u7cfb\u4e2d\uff0c\u5b50\u7c7b\u53ef\u4ee5\u91cd\u5199\u7236\u7c7b\u7684\u65b9\u6cd5\uff0c\u5f53\u8c03\u7528\u8be5\u65b9\u6cd5\u65f6\uff0c\u4f1a\u6839\u636e\u5bf9\u8c61\u7684\u5b9e\u9645\u7c7b\u578b\u6765\u9009\u62e9\u76f8\u5e94\u7684\u65b9\u6cd5\u5b9e\u73b0\uff0c\u800c\u4e0d\u662f\u6839\u636e\u5f15\u7528\u53d8\u91cf\u7684\u7c7b\u578b\u6765\u9009\u62e9\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u4e8c\u3001\u591a\u6001\u7684\u5b9e\u73b0\u65b9\u5f0f<\/p>\n<p>\u5728\u9762\u5411\u5bf9\u8c61\u7a0b\u5e8f\u8bbe\u8ba1\u4e2d\uff0c\u591a\u6001\u6709\u4e24\u79cd\u5b9e\u73b0\u65b9\u5f0f\uff1a\u7ee7\u627f\u591a\u6001\u548c\u63a5\u53e3\u591a\u6001\u3002<\/p>\n<ol>\n<li>\u7ee7\u627f\u591a\u6001<\/li>\n<\/ol>\n<p>\u7ee7\u627f\u591a\u6001\u662f\u6700\u5e38\u89c1\u7684\u591a\u6001\u5b9e\u73b0\u65b9\u5f0f\uff0c\u5728\u7ee7\u627f\u4f53\u7cfb\u4e2d\uff0c\u5b50\u7c7b\u53ef\u4ee5\u91cd\u5199\u7236\u7c7b\u7684\u65b9\u6cd5\uff0c\u5f53\u8c03\u7528\u8be5\u65b9\u6cd5\u65f6\uff0c\u4f1a\u6839\u636e\u5bf9\u8c61\u7684\u5b9e\u9645\u7c7b\u578b\u6765\u9009\u62e9\u76f8\u5e94\u7684\u65b9\u6cd5\u5b9e\u73b0\uff0c\u800c\u4e0d\u662f\u6839\u636e\u5f15\u7528\u53d8\u91cf\u7684\u7c7b\u578b\u6765\u9009\u62e9\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>class Animal{\n  public function sound(){\n    echo '\u4e0d\u77e5\u9053\u600e\u4e48\u53eb';\n  }\n}\n\nclass Cat extends Animal{\n  public function sound(){\n    echo '\u55b5\u55b5\u55b5';\n  }\n}\n\nclass Dog extends Animal{\n  public function sound(){\n    echo '\u6c6a\u6c6a\u6c6a';\n  }\n}\n\n$cat = new Cat();\n$dog = new Dog();\n\n$cat-&amp;gt;sound(); \/\/ \u8f93\u51fa\uff1a\u55b5\u55b5\u55b5\n$dog-&amp;gt;sound(); \/\/ \u8f93\u51fa\uff1a\u6c6a\u6c6a\u6c6a<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ol>\n<li>\u63a5\u53e3\u591a\u6001<\/li>\n<\/ol>\n<p>\u63a5\u53e3\u591a\u6001\u662f\u5229\u7528\u63a5\u53e3\u6765\u5b9e\u73b0\u591a\u6001\uff0c\u4e00\u4e2a\u7c7b\u53ef\u4ee5\u5b9e\u73b0\u591a\u4e2a\u63a5\u53e3\uff0c\u5f53\u8c03\u7528\u63a5\u53e3\u4e2d\u7684\u65b9\u6cd5\u65f6\uff0c\u4f1a\u6839\u636e\u5b9e\u9645\u5bf9\u8c61\u7684\u7c7b\u578b\u6765\u9009\u62e9\u76f8\u5e94\u7684\u65b9\u6cd5\u5b9e\u73b0\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>interface Shape{\n  public function draw();\n}\n\nclass Circle implements Shape{\n  public function draw(){\n    echo '\u753b\u4e00\u4e2a\u5706\u5f62';\n  }\n}\n\nclass Square implements Shape{\n  public function draw(){\n    echo '\u753b\u4e00\u4e2a\u6b63\u65b9\u5f62';\n  }\n}\n\n$circle = new Circle();\n$square = new Square();\n\n$circle-&amp;gt;draw(); \/\/ \u8f93\u51fa\uff1a\u753b\u4e00\u4e2a\u5706\u5f62\n$square-&amp;gt;draw(); \/\/ \u8f93\u51fa\uff1a\u753b\u4e00\u4e2a\u6b63\u65b9\u5f62<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4e09\u3001\u5229\u7528ThinkPHP6\u5b9e\u73b0\u591a\u6001<\/p>\n<p>ThinkPHP6\u662f\u4e00\u4e2a\u975e\u5e38\u6d41\u884c\u7684PHP\u6846\u67b6\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u5feb\u901f\u3001\u9ad8\u6548\u5730\u5f00\u53d1Web\u5e94\u7528\u7a0b\u5e8f\u3002\u5728ThinkPHP6\u6846\u67b6\u4e2d\uff0c\u591a\u6001\u53ef\u4ee5\u901a\u8fc7\u63a5\u53e3\u6765\u5b9e\u73b0\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u5b9e\u73b0\u591a\u6001\u7684\u4f8b\u5b50\u3002<\/p>\n<ol>\n<li>\u521b\u5efa\u63a5\u53e3<\/li>\n<\/ol>\n<p>\u5728ThinkPHP6\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u521b\u5efa\u63a5\u53e3\u6765\u5b9e\u73b0\u591a\u6001\u3002\u4e0b\u9762\u662f\u4e00\u4e2aValidator\u63a5\u53e3\u7684\u4f8b\u5b50\uff0c\u8be5\u63a5\u53e3\u7528\u4e8e\u9a8c\u8bc1\u7528\u6237\u8f93\u5165\u7684\u6570\u636e\u662f\u5426\u5408\u6cd5\u3002<\/p>\n<pre>alidate;\n\ninterface Validator{\n  public function validate($value, $rule);\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ol>\n<li>\u521b\u5efa\u5b9e\u73b0\u7c7b<\/li>\n<\/ol>\n<p>\u5728\u63a5\u53e3\u5b9a\u4e49\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u591a\u4e2a\u5b9e\u73b0\u7c7b\u6765\u5b9e\u73b0\u63a5\u53e3\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u793a\u4f8b\uff0c\u5b83\u5b9e\u73b0\u4e86\u5e38\u89c1\u7684\u51e0\u79cd\u9a8c\u8bc1\u89c4\u5219\uff1a\u90ae\u4ef6\u5730\u5740\u9a8c\u8bc1\u3001\u7528\u6237\u540d\u9a8c\u8bc1\u3001\u5bc6\u7801\u5f3a\u5ea6\u9a8c\u8bc1\u3002<\/p>\n<pre>alidate;\n\nclass EmailValidator implements Validator{\n  public function validate($value, $rule){\n    \/\/ \u5224\u65ad\u662f\u5426\u4e3a\u6709\u6548\u7684\u90ae\u4ef6\u5730\u5740\n    if(filter_var($value, FILTER_VALIDATE_EMAIL)){\n      return true;\n    }else{\n      return '\u90ae\u4ef6\u5730\u5740\u683c\u5f0f\u4e0d\u6b63\u786e';\n    }\n  }\n}\n\nclass UsernameValidator implements Validator{\n  public function validate($value, $rule){\n    \/\/ \u5224\u65ad\u7528\u6237\u540d\u957f\u5ea6\u662f\u5426\u5408\u6cd5\n    if(strlen($value) &lt;ol start=\"3\"&gt;&lt;li&gt;\u5229\u7528\u591a\u6001\u8fdb\u884c\u9a8c\u8bc1&lt;\/li&gt;&lt;\/ol&gt;&lt;p&gt;\u5728\u5b9e\u73b0\u5b8c\u63a5\u53e3\u548c\u5b9e\u73b0\u7c7b\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5f00\u59cb\u5229\u7528\u591a\u6001\u6765\u8fdb\u884c\u9a8c\u8bc1\u4e86\u3002\u4e0b\u9762\u662f\u4e00\u4e2avalidate\u65b9\u6cd5\u7684\u4f8b\u5b50\uff0c\u8be5\u65b9\u6cd5\u63a5\u6536\u4e00\u4e2a\u6570\u636e\u6570\u7ec4\u5e76\u8fdb\u884c\u9a8c\u8bc1\u3002\u5728\u9a8c\u8bc1\u65f6\uff0c\u6211\u4eec\u53ea\u9700\u8981\u4f20\u5165\u76f8\u5e94\u7684\u5b9e\u73b0\u7c7b\u5c31\u53ef\u4ee5\u5b9e\u73b0\u4e0d\u540c\u7684\u9a8c\u8bc1\u89c4\u5219\u3002&lt;\/p&gt;&lt;pre class=\"brush:php;toolbar:false;\"&gt;alidate;\n\nclass InputValidate{\n  public function validate($data, $rules){\n    $errors = array();\n    foreach($rules as $key =&amp;gt; $rule){\n      list($validator, $ruleValue) = explode(':', $rule);\n      $validateClass = 'ppalidate'.$validator.'Validator';\n      $validatorObj = new $validateClass();\n      $result = $validatorObj-&amp;gt;validate($data[$key], $ruleValue);\n      if($result !== true){\n        $errors[$key] = $result;\n      }\n    }\n    return $errors;\n  }\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u56db\u3001\u603b\u7ed3<\/p>\n<p>\u5229\u7528\u591a\u6001\u53ef\u4ee5\u8ba9\u6211\u4eec\u5b9e\u73b0\u66f4\u52a0\u7075\u6d3b\u3001\u667a\u80fd\u5316\u7684\u64cd\u4f5c\u65b9\u5f0f\uff0c\u4ece\u800c\u63d0\u9ad8\u4ee3\u7801\u7684\u590d\u7528\u6027\u548c\u53ef\u6269\u5c55\u6027\u3002\u5728Web\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u521b\u5efa\u63a5\u53e3\u548c\u5b9e\u73b0\u7c7b\u6765\u5b9e\u73b0\u591a\u6001\u3002\u5728ThinkPHP6\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5229\u7528\u63a5\u53e3\u6765\u5b9e\u73b0\u591a\u6001\uff0c\u4ece\u800c\u8fbe\u5230\u6211\u4eec\u7684\u4e1a\u52a1\u76ee\u6807\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5229\u7528ThinkPHP6\u5b9e\u73b0\u591a\u6001\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u968f\u7740web\u5e94\u7528\u7a0b\u5e8f\u7684\u53d1\u5c55\uff0c\u5f88\u591a\u4e1a\u52a1\u90fd\u9700\u8981\u4e3a\u7528\u6237\u63d0\u4f9b\u66f4\u52a0\u7075\u6d3b\u3001\u66f4\u52a0\u591a\u6837\u5316\u7684\u64cd\u4f5c\u65b9\u5f0f\u3002\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u591a\u6001\uff0c\u5b83\u662f\u9762\u5411\u5bf9\u8c61\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u6838\u5fc3\u6982\u5ff5\u4e4b\u4e00\u3002\u591a\u6001\u53ef\u4ee5\u8ba9\u4e0d\u540c\u7684\u5b50\u7c7b\u5bf9\u8c61\u5bf9\u540c\u4e00\u4e2a\u65b9\u6cd5\u505a\u51fa\u4e0d\u540c\u7684\u54cd\u5e94\u3002\u8fd9\u4e0d\u4ec5\u589e\u5f3a\u4e86\u4ee3\u7801\u7684\u590d\u7528\u6027\u548c\u53ef\u6269\u5c55\u6027\uff0c\u4e5f\u4e3a\u7528\u6237\u4f53\u9a8c\u5e26\u6765\u4e86\u66f4\u597d\u7684\u611f\u53d7\u3002 \u5728Web\u5e94\u7528\u7a0b\u5e8f\u4e2d\uff0c\u5229\u7528\u591a\u6001\u53ef\u4ee5\u8ba9\u6211\u4eec\u5b9e\u73b0\u66f4\u52a0\u667a\u80fd\u5316\u7684\u64cd\u4f5c\uff0c\u4f8b\u5982\uff1a\u5f53\u7528\u6237\u63d0\u4ea4\u6ce8\u518c\u4fe1\u606f\u65f6\uff0c\u6211\u4eec\u9700\u8981\u5bf9\u8fd9\u4e9b\u4fe1\u606f\u8fdb\u884c\u5404\u79cd\u68c0\u9a8c\uff0c\u4ee5\u786e\u4fdd\u5b83\u4eec\u7684\u5408\u6cd5\u6027\u3002\u800c\u8fd9\u4e9b\u68c0\u9a8c\u53ef\u80fd\u662f\u591a\u79cd\u591a\u6837\u7684\uff0c\u5305\u62ec\uff1a\u9a8c\u8bc1\u90ae\u4ef6\u5730\u5740\u3001\u9a8c\u8bc1\u7528\u6237\u540d\u3001\u9a8c\u8bc1\u5bc6\u7801\u5f3a\u5ea6\u7b49\u7b49\u3002\u5982\u679c\u6211\u4eec\u4f7f\u7528\u4f20\u7edf\u7684if\/else\u8bed\u53e5\u6765\u8fdb\u884c\u68c0\u9a8c\uff0c\u90a3\u4e48\u4ee3\u7801\u4f1a\u53d8\u5f97\u975e\u5e38\u81c3\u80bf\uff0c\u4e5f\u5f88\u96be\u6269\u5c55\u3002\u800c\u5982\u679c\u6211\u4eec\u5229\u7528\u591a\u6001\u6765\u5b9e\u73b0\u8fd9\u4e9b\u68c0\u9a8c\u903b\u8f91\uff0c\u90a3\u4e48\u4ee3\u7801\u4f1a\u53d8\u5f97\u975e\u5e38\u7b80\u6d01\u3001\u6613\u4e8e\u6269\u5c55\uff0c\u4e5f\u66f4\u52a0\u6613\u4e8e\u7ef4\u62a4\u3002 \u672c\u6587\u5c31\u662f\u8981\u4ecb\u7ecd\u5982\u4f55\u5229\u7528ThinkPHP6\u6846\u67b6\u6765\u5b9e\u73b0\u591a\u6001\u3002 \u4e00\u3001\u4ec0\u4e48\u662f\u591a\u6001\uff1f \u591a\u6001\uff08Polymorphism\uff09\u662f\u9762\u5411\u5bf9\u8c61\u7a0b\u5e8f\u8bbe\u8ba1\u7684\u6838\u5fc3\u6982\u5ff5\u4e4b\u4e00\uff0c\u5b83\u662f\u6307\u540c\u6837\u7684\u4e00\u4e2a\u65b9\u6cd5\uff0c\u9488\u5bf9\u4e0d\u540c\u7684\u5bf9\u8c61\uff0c\u53ef\u4ee5\u6709\u4e0d\u540c\u7684\u5b9e\u73b0\u65b9\u5f0f\u548c\u8fd4\u56de\u7ed3\u679c\u3002\u5728\u7ee7\u627f\u5173\u7cfb\u4e2d\uff0c\u5b50\u7c7b\u53ef\u4ee5\u91cd\u5199\u7236\u7c7b\u7684\u65b9\u6cd5\uff0c\u5f53\u8c03\u7528\u8be5\u65b9\u6cd5\u65f6\uff0c\u4f1a\u6839\u636e\u5bf9\u8c61\u7684\u5b9e\u9645\u7c7b\u578b\u6765\u9009\u62e9\u76f8\u5e94\u7684\u65b9\u6cd5\u5b9e\u73b0\uff0c\u800c\u4e0d\u662f\u6839\u636e\u5f15\u7528\u53d8\u91cf\u7684\u7c7b\u578b\u6765\u9009\u62e9\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u4e8c\u3001\u591a\u6001\u7684\u5b9e\u73b0\u65b9\u5f0f \u5728\u9762\u5411\u5bf9\u8c61\u7a0b\u5e8f\u8bbe\u8ba1\u4e2d\uff0c\u591a\u6001\u6709\u4e24\u79cd\u5b9e\u73b0\u65b9\u5f0f\uff1a\u7ee7\u627f\u591a\u6001\u548c\u63a5\u53e3\u591a\u6001\u3002 \u7ee7\u627f\u591a\u6001 \u7ee7\u627f\u591a\u6001\u662f\u6700\u5e38\u89c1\u7684\u591a\u6001\u5b9e\u73b0\u65b9\u5f0f\uff0c\u5728\u7ee7\u627f\u4f53\u7cfb\u4e2d\uff0c\u5b50\u7c7b\u53ef\u4ee5\u91cd\u5199\u7236\u7c7b\u7684\u65b9\u6cd5\uff0c\u5f53\u8c03\u7528\u8be5\u65b9\u6cd5\u65f6\uff0c\u4f1a\u6839\u636e\u5bf9\u8c61\u7684\u5b9e\u9645\u7c7b\u578b\u6765\u9009\u62e9\u76f8\u5e94\u7684\u65b9\u6cd5\u5b9e\u73b0\uff0c\u800c\u4e0d\u662f\u6839\u636e\u5f15\u7528\u53d8\u91cf\u7684\u7c7b\u578b\u6765\u9009\u62e9\u3002\u4f8b\u5982\uff1a class Animal{ public function sound(){ echo &#8216;\u4e0d\u77e5\u9053\u600e\u4e48\u53eb&#8217;; } } class Cat extends Animal{ public function sound(){ echo &#8216;\u55b5\u55b5\u55b5&#8217;; } } class Dog extends Animal{ public function sound(){ echo &#8216;\u6c6a\u6c6a\u6c6a&#8217;; } } $cat = new Cat(); $dog = new Dog(); $cat-&amp;gt;sound(); \/\/ \u8f93\u51fa\uff1a\u55b5\u55b5\u55b5 $dog-&amp;gt;sound(); \/\/ \u8f93\u51fa\uff1a\u6c6a\u6c6a\u6c6a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-23616","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=23616"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/23616\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=23616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=23616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=23616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}