修改库存不足时提示数量

app/AdminAgent/Controllers/AgentProductController.php

@@ -283,7 +283,7 @@ class AgentProductController extends AdminController
 				if ($product->status != ProductStatus::ON_SALE) {
 					return $form->response()->error('产品ID '. $form->product_id .' 已下架');
 				} else if ($product->stock < $form->stock) {
-					return $form->response()->error("供应商当前库存为{$form->stock}，你设置的库存不能超过该数值");
+					return $form->response()->error("供应商当前库存为{$product->stock}，你设置的库存不能超过该数值");
 				}
 				$form->title = $product->title;
 				$form->pictures = $product->pictures;