????????????????????????????????????????????????????????????????????????????????Щ??????????????????????????

??????????5?????????????????5???????????????????????????????????????????????????????????????????????????д??5????????????5??????????????

????1????????????

    public class Program 
    { 
        static void Main(string[] args) 
        { 
            string message = "Hello World!";  // 07/24/2010 Bob
            Console.WriteLine(message); // 07/24/2010 Bob
            message = "I am so proud of this code!"; // 07/24/2010 Bob
            Console.WriteLine(message); // 07/24/2010 Bob
        } 
    }

?????????????????????????????????????????б??????д????????????????????e汾????????VCS??????????????????????????????????????????????

????2???????????

    public class Program 
    { 
        static void Main(string[] args) 
        { 
            /* This block of code is no longer needed
             * because we found out that Y2K was a hoax
             * and our systems did not roll over to 1/1/1900 */
            //DateTime today = DateTime.Today;
            //if (today == new DateTime(1900 1 1))
            //{
            //    today = today.AddYears(100);
            //    string message = "The date has been fixed for Y2K.";
            //    Console.WriteLine(message);
            //}
        } 
    }

?????????δ????????????????????????????——???????????????????????????ū??????????????????κ??????????????????????????????e汾??????????????????????汾?л??????????

????3???????????

    public class Program 
    { 
        static void Main(string[] args) 
        { 
            /* This is a for loop that prints the 
             * words "I Rule!" to the console screen 
             * 1 million times each on its own line. It
             * accomplishes this by starting at 0 and 
             * incrementing by 1. If the value of the 
             * counter equals 1 million the for loop
             * stops executing.*/
            for (int i = 0; i < 1000000; i++) 
            { 
                Console.WriteLine("I Rule!"); 
            } 
        } 
    }

??????????????????????????——????????“???????”???????????????????????????????????????????????????????????????——???????????????