一个小公司的工资管理系统。该公司主要有4类人员：经理、兼职技术人员、销售员和销售经理。要求存储并显示每类人员的编号（从100起编号）、姓名和月薪，同时给出在创建每一类对象时构造函数的执行顺序（月薪计算方法为：经理固定月薪8000元，兼职技术人员100元/小时，销售员为当月销售额的4％，销售经理保底工资5000元另加其所管部门销售额的5％），用虚函数实现。-A small company s payroll system. The company mainly four categories of staff: manager, part-time technicians, salespeople and sales managers. Requirement to store and display the number of each type of personnel (No. 100), name, and a monthly salary of the order of execution of the constructor given in each class object is created at the same time (monthly salary is calculated as: manager fixed monthly salary of 8,000 yuan, part-time technical staff 100 yuan/hour, the salesman month 4　of sales, sales manager keep base wage of 5,000 yuan plus 5　of the sales in the possession department) with virtual functions.