C++高手请进，帮忙写个代码，急！

请运行确认无误后再上传，请用CLASS和FILE来做，还有注释．谢谢
以下是题目：
You are requested to create a C++ application to handle the payroll system of an event organizer
(give a name to the company).
The event organizer is paying its employees a basic salary of $1,750 and commission based on
the total cost of events he/she handled. Events are categorized into THREE (3): seminar and
corporate, wedding and party, and promotion and advertisement. For seminar and corporate
event, an employee is eligible for 8% commission from the total event cost. For wedding and
party event, an employee is eligible for 10% commission from the total event cost. Whereas for
seminar and corporate event, an employee is eligible for 15% commission from the total event
cost.
Your application should prompt the user for FIVE (5) sets of records consist of employee name
and total event cost. Your application then should calculate the commission and total income
earned by each employee.
You are requested to create a class called Employee, which should consist of at least FIVE (5)
member variables (name, total event cost, basic salary, commission, and total income) and TWO
(2) member functions (CalCommission and CalTotalIncome)
In your main function, prompt the user for FIVE (5) sets of records consist of employee name
and event cost; and save the input in data file called Employee.txt.
Retrieve Employee.txt and save the records as values of Employee class. Calculate and display
the commission and total income of each employee in function members CalCommission and
CalTotalIncome of class Employee. Save the new employee records (each record should
consist of name, total event cost, basic salary, commission, and total income) in a data file called
NewEmployee.txt.
Note that the output should be formatted into TWO (2) decimal places．

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