Introduction - If you have any usage issues, please Google them yourself
Of the problem: write a small company payroll system. The company mainly four categories of staff: managers, part-time technical staff, sales staff and sales manager. Store and display the number of each type of personnel (from 100 from the number), name, and a monthly salary, and gives each type of object is created the constructor execution order (with a monthly salary calculated as follows: the manager of a fixed monthly salary of 8000 yuan, part-time technical staff 100 yuan/hour, the salesman of the month 4 of sales, sales manager keep base wage of 5000 yuan plus 5 of the sales of their administration department), with virtual functions.