该文件包含了税务处理器类ShuiWuChuLiQi，用于进行计算给定薪金对应的应缴税款、添加新的税率、删除指定税率的处理。-This file contains the tax processor class ShuiWuChuLiQi, used for calculation of salaries corresponding to a given amount of tax payable, add a new tax rate, remove the specified rate of