static void Main(string[] args)
{
Console.WriteLine("Hello Visitor design pattern!");
var swissEmployee = new SwissEmployee("Nghia", 1000);
var export = new ExportVisitor();
export.Export(swissEmployee);
var egyptEmployee = new EgyptEmployee("Sopanos", 1000);
egyptEmployee.Accept(export);
Console.ReadKey();
}
public void Export(SwissEmployee employee)
{
Console.WriteLine($"Swiss salary of {employee.Name} is {employee.Salary}");
}