请设计一个employee基类，成员是雇员姓名等情况，再设计一个workerhours子类，成员是雇员的工作时间及工资/小时，用这两个类实现工人工资管理。-design an employee requests the base class members are employees of the names, Redesign workerhours a sub-category of members of the employee's working hours and wage /