????：<?php namespace app\index\controller; use app\index\model\User; class Index {    protected $user;    public function __construct(User $user)    {    

<?php namespace app\index\controller; use app\index\model\User; class Index {    protected $user;    public function __construct(User $user)    {        $this->user = $user;    }    public function hello()    {        return 'Hello,' . $this->user->name . '！';    } }依賴注入

?? ???：天蓬老師?? ??：2020-03-08 17:35:48
???? ??：代碼應(yīng)該放在代碼塊中, 并且格式化后再提交