public delegate void SayHello(string name);    class Program    {        static void Main(string[] args)        {            SayHello sayHello;            sayHello = English;            sayHello += Chinese;            sayHello("Baby");            Console.ReadLine();        }        public static void English(string name)        {            Console.WriteLine("Hello, " + name);        }        public static void Chinese(string name)        {            Console.WriteLine("你好, " + name);        }           }

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