优化

mp-service/src/main/java/com/qs/mp/user/service/impl/UserDeliverOrderServiceImpl.java

@@ -380,13 +380,14 @@ public class UserDeliverOrderServiceImpl extends ServiceImpl<UserDeliverOrderMap
             }
         }
 
-        sb.append("发货成功:")
+        sb.append("<pre>发货成功:")
                 .append(successNum)
                 .append("<br>")
                 .append("发货失败:")
                 .append(failNum)
                 .append("<br>")
-                .append(failSb);
+                .append(failSb)
+                .append("</pre>");
 
         return sb.toString();
     }