static void Main(string[] args) { int age = 0; float ratio = 1.0f; string name = string.Empty; bool flag = false; Flag.IntVar(ref age, "age", 18, "Set the age"); Flag.FloatVar(ref ratio, "ratio", 1.0f, "Set the ratio"); Flag.StringVar(ref name, "name", "syne", "Set the name"); Flag.BoolVar(ref flag, "flag", false, "Set flag"); Flag.Parse(); Console.WriteLine(age); Console.WriteLine(ratio); Console.WriteLine(name); Console.WriteLine(flag); }