C# 入门经典示例.

    {

       static int a = ushort.MaxValue, b;

       static short c;

        static void Main()

        {

          //调试的时候不会报错。

                Console.WriteLine(a);

                c = (short)a;

                Console.WriteLine(c);

        }

    }

    class Class3

    {

       static int a = ushort.MaxValue, b;

       static short c;

        static void Main()

        {

             Checked  //调试的时候如果出现溢出，会报错。直接运行不会报错。

            {

                Console.WriteLine(a);

                c = (short)a;

                Console.WriteLine(c);

            }

        }

    }