问题的提出：编写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％），要求用虚函数实现-the problem : the preparation of a small company's wage management system. The company has four main categories : managers, a part-time technical staff, sales staff and marketing managers. Memory requirements for each type of show and the number (from No. 100), the name and salary. also given in each category to create targeted at the implementation Constructors order (salary calculated as : Manager fixed monthly 8,000 yuan, a part-time technical staff 100 yuan/hour, the members of the sales month sales of 4% Sales Manager Bao end wages 5,000 yuan plus possession sector sales 5%), requiring use of Virtual Functions