问题件导出 问题件导出对以'null_'开头的进行处理

app/Http/Controllers/OrderIssueController.php

@@ -626,7 +626,7 @@ class OrderIssueController extends Controller
             $orderPacakges = $order_issue->order->packages ?? collect();
             $logistic_numbers = '';$order_sku  = '';$order_sku_name  = '';$order_sku_amount  = '';
             $orderPacakges->each(function($package,$index)use(&$logistic_numbers,&$order_sku,&$order_sku_name,&$order_sku_amount){
-                $logistic_numbers.=$package->logistic_number."\r\n";
+                if(!str_starts_with('null',$package->logistic_number))$logistic_numbers.=$package->logistic_number."\r\n";
                 $package->commodities->each(function($commodities)use(&$order_sku,&$order_sku_name,&$order_sku_amount){
                     $commodity = $commodities->commodity ?? '';
                     $order_sku.= ($commodity->sku ?? '')."\r\n";