using System;
using System.Collections.Generic;//用到了容器類
using System.Text.RegularExpressions;//用到了正則表達(dá)式

class Collections
{
 //C#容器Dictionary的基本使用
 public static void dictionaryTest() {
 Dictionary<string, int> dict = new Dictionary<string, int>();
 dict.Add("K1", 123);
 dict["K2"] = 456;
 dict.Add("K3", 789);
 Console.WriteLine("數(shù)據(jù)字典dict中的Key-value對為：");
 foreach (KeyValuePair<string, int> k in dict)
 {
  Console.WriteLine("{0}-{1}; ", k.Key, k.Value); //K1-123; K2-456; K3-789;
 } 
 }

 //C#容器List與HashSet的基本使用
 public static void listTest() {

 List<int> list = new List<int>();

 Console.WriteLine("輸入#，結(jié)束輸入！");
 Regex regex = new Regex("^[0-9]*$");
 String input_string = "";
 while (true)
 {
  Console.Write("請輸入數(shù)組的數(shù)字：");
  input_string = Console.ReadLine();
  if (input_string.Trim().CompareTo("#") == 0)
  {
  break;
  }
  else
  {
  if (regex.IsMatch(input_string))//利用正則表達(dá)式判斷是否輸入的是數(shù)字
  {
   list.Add(int.Parse(input_string));
  }
  else
  {
   Console.WriteLine("輸入的不是數(shù)字！請重新輸入！");
  }
  }
 }
 Console.WriteLine("輸入的List為：");
 for (int i = 0; i < list.Count; i++)
 {
  Console.Write(list[i] + " ");
 }
 Console.WriteLine();

 list = new List<int>(new HashSet<int>(list));//利用集合為list去重

 Console.WriteLine("List利用Set去重后為："); 
 for (int i = 0; i < list.Count; i++)
 {
  Console.Write(list[i] + " ");
 }
 Console.WriteLine(); ;
 
 }

 public static void Main(String[] args)
 {
 dictionaryTest();
 listTest();
 Console.ReadKey();//等待用戶按回車才結(jié)束程序
 }
}