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  • C# 入门经典示例.

        class Class3

        {

           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);

                }

        

            }

        }



     

        class Class3

        {

           static int a = ushort.MaxValue, b;

           static short c;

            static void Main()

            {

     

     

                int a;

                string ok = Console.ReadLine();

                Console.WriteLine(int.TryParse(ok, out a));

                Console.WriteLine(a);

     

                string temp = Console.ReadLine();

                char[] ok = new char[] { ' ', '1' };

                string[] tempArray = temp.Split(ok);

                foreach (var item in tempArray)

                {

                    Console.WriteLine(item);

     

                }

                Console.WriteLine("3¨°¨¤¤¡äº??");

                string Lstring = Console.ReadLine();

                for (int i = Lstring.Length - 1; i >= 0; i--)

                {

                    Console.WriteLine(Lstring[i]);

     

                }

     

                Console.WriteLine("ã?Yes ¬??a No");

     

                string LString = Console.ReadLine();

                LString = LString.Replace("yes", "No");

                Console.WriteLine(LString);

     

               

               

                Console.WriteLine("???Ì£¤ä¨º¨®¦??°y?");

            

                string Lstring = Console.ReadLine();

                string[] Rstring = Lstring.Split(' ');

                string result = null;

                foreach (var item in Rstring)

                {

                    if (item == string.Empty)

                        continue;

                    result += "\"" + item + "\"";

     

                }

     

       

     

                Console.WriteLine(result);

     

     

     

     

              

               

               

     

      

               

            }

        }

     

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  • 原文地址:https://www.cnblogs.com/fat_li/p/1947444.html
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