car-wash-java/car-wash-service/src/main/java/com/kym/service/DiscountService.java

package com.kym.service;

import com.kym.entity.Account;
import com.kym.entity.WashOrder;

/**
 * 优惠计算
 */
public interface DiscountService {
    void computeDiscount(WashOrder order, Account account);
}