01 2022 档案
摘要：1 using System; 2 using System.IO; 3 4 public class Program 5 { 6 public static void Main() 7 { 8 string path = @"C:\Users\user\Downloads"; 9 Console.
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摘要：1 using System; 2 3 public class Program 4 { 5 public static void Main() 6 { 7 object o ="3"; 8 int j = 4; 9 10 if(o is int i) 11 { 12 Console.WriteLi
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摘要：1 using System; 2 3 public class Program 4 { 5 public static string CardinalToOrdinal(int number) 6 { 7 switch(number) 8 { 9 case 11: 10 case 12: 11 c
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