edit

app/shop/lib/Refund.php

@@ -155,6 +155,11 @@ class Refund
                 } else {
                     $p_cash = 0;
                 }
+
+                if (isset($data['ps_cash']) && $data['ps_cash'] > 0 && $data['status'] >= 4) {
+                    # 已发货不退配送费
+                    $cash -= $data['ps_cash'];
+                }
             }
 
             if ($cash > 0) {