* [ ] 獲取設置參數 ``` obtain($Name = null, $Default = null); ``` Name(string|array)：參數名稱 (支持字符串獲取數組) Default：參數不存在時的默認內容 ***** ``` <?php class index { use \TempLets; //使用模板類要使用use引入 public function main() { $this->assign(['usera'=>1,'name'=>'admin']); $this->assign('a.b.c','數組創建');//創建了數組：['a'=>'b'=>['c'=>'數組創建']] $this->assign('username','administrator'); $this->assign('arr',['a'=>['b'=>['c']=>'多維數組']]); echo $this->obtain('usera');//輸出：1 echo $this->obtain('name');//輸出：admin ps($this->obtain('a')) ;//輸出：['b'=>['c'=>'數組創建']] echo $this->obtain('username');//輸出：administrator ps($this->obtain('arr.a.b.c')); //輸出：多維數組 } } ```