### 插入 ~~~ /** * 插入 */ public function insert() { $data = ['username' => 'aaphp', 'password' => '123456', 'age' => 18]; $model = new User(); // $model= new Model('user');//等价于上面 $id = $model->insert($data); echo '自增id：' . $id . '<br/>'; } ~~~