重塑order结构

manage-server/database/migrations/2018_08_10_075128_create_maternity_matron_orders_table.php

@@ -40,6 +40,7 @@ class CreateMaternityMatronOrdersTable extends Migration
             $table->double('price');
             $table->string('photo');
             $table->unsignedInteger('comment_id');
+            $table->timestamps();
         });
     }