加点注释

data-mid/mid-calculate-cost-first/src/main/java/com/bailuntec/job/CalculateCostFirstJob.java

@@ -88,6 +88,10 @@ public class CalculateCostFirstJob extends PointJob {
             map.put(dcBaseSku.getBailunSku(), dcBaseCostFirst);
         }
 
+        /*
+         * 用物流单内SKU的费用 (由重量比计算)
+         * 除以数量 得出该物流单单个SKU的头程费
+         */
         DcMidCostFirstOrder dcMidCostFirstOrder = new DcMidCostFirstOrder();
         for (Map.Entry<String, DcBaseCostFirst> entry : map.entrySet()) {
             DcBaseCostFirst dcBaseCostFirst = entry.getValue();