add

server/resources/views/admin/user/banks/index.blade.php

@@ -60,7 +60,7 @@
             <td>{{ $item->bank_user }}</td>
             <td>
 				@if(!empty($item->qrcode))
-					<img src="{{$item->qrcode}}" width="20px" alt="">
+					<img src="{{$item->qrcode}}" width="40px" alt="">
 				@endif
 			</td>
             <td>{{ $item->type }}</td>