更新

app/Http/Controllers/Api/TestController.php

@@ -117,7 +117,7 @@ class TestController
         for ($i=1;$i<100;$i++){
             $ar = array();
             $ar['UserID'] = 'IM_USER_TEST_'.$i;
-            $arr[]=$ar;
+            $arr[]=json_encode($ar);
         }
         $res = $tencent->accountDelete($arr);
         dd($res);