public static complex operator +(complex C1, complex c2) { complex c = new complex(); c.number = C1.number + c2.number; return(c); }
static void Main(string[] args) { printhello(); printhello("world"); complex c1 = new complex(); complex c2 = new complex(); c1.number = 2; c2.number = 5; Console.WriteLine((c1 + c2).number); human human1 = new man(); human human2 = new woman(); human1.cleanroom(); human2.cleanroom(); Console.WriteLine(c2.ToString()); Console.WriteLine(); }