sample31.cs

C#函数手册

namespace apiBook
{
	using System;
	using System.Collections;
	public class TestArrayList  
	{
		public static void Main()  
		{
			TestArrayList test=new TestArrayList();
			ArrayList testList = new ArrayList();
			testList.Add( "one" );
			testList.Add( "two" );
			testList.Add( "three" );
			testList.Add( "four" );
			testList.Add( "V" );	
			testList.Add( "six" );	
			Array testA=Array.CreateInstance( typeof(String), 10 );
			testA.SetValue( "I", 0 );
			testA.SetValue( "II", 1 );
			testA.SetValue( "III", 2 );
			testA.SetValue( "IV", 3 );
			testA.SetValue( "V", 4 );
			testA.SetValue( "VI", 5 );
			Console.WriteLine( "操作前数组的内容:" );
			test.PrintValues( testA, ',' );
			Console.WriteLine("将ArrayList第2个元素拷贝到Array作为第二个元素：");
			testList.CopyTo( 1, testA,1, 1 );
			//使用CopyTo方法进行元素的拷贝
			test.PrintValues( testA, ',' );
			Console.WriteLine("从ArrayList第4个元素开始拷贝3个元素到Array，下标4开始");
			testList.CopyTo(3,testA,3,3);
			test.PrintValues( testA, ',' );
			Console.WriteLine("将ArrayList整个拷贝到Array中去");
			testList.CopyTo( testA );
			// Displays the values of the target Array.
			test.PrintValues( testA, ',' );
			testList=ArrayList.Repeat("C#",5);
			Console.WriteLine("IndexOf(\"C#\")="+testList.IndexOf("C#"));
			Console.WriteLine("LastIndexOf(\"C#\")="+testList.LastIndexOf("C#"));
			//使用Repeat方法创建并初始化一个新的ArrayList对象
			test.PrintListValues(testList,',');
			int indexL=testList.IndexOf("C#",1);
			testList[indexL]="Java";
			indexL=testList.LastIndexOf("C#");
			testList[indexL]="Dephi";
			testList[2]="C++";
			testList[3]="VB";
			test.PrintListValues(testList,',');			
			testList.Reverse();
			Console.WriteLine("Reverse()操作执行之后:");
			test.PrintListValues(testList,',');
			testList.Sort(0,5,null);    
			Console.WriteLine("Sort(0,5,null)操作执行之后:");
			test.PrintListValues(testList,',');
			Console.WriteLine("当前元素个数是："+testList.Count);
			Console.WriteLine("当前总容量是："+testList.Capacity);
			testList.TrimToSize();
			Console.WriteLine("执行TrimToSize操作之后");
			Console.WriteLine("当前元素个数是："+testList.Count);
			Console.WriteLine("当前总容量是："+testList.Capacity);
			testList.Insert(3,"C");
			Console.WriteLine("Insert(3,\"C\")操作执行之后:");
			test.PrintListValues(testList,',');
			Console.WriteLine("当前元素个数是："+testList.Count);
			Console.WriteLine("当前总容量是："+testList.Capacity);
			Queue testQ = new Queue();
			testQ.Enqueue( "ASP" );
			testQ.Enqueue( "JSP" );
			testList.InsertRange(3,testQ);
			Console.WriteLine("执行InsertRange操作之后");
			test.PrintListValues(testList,',');
			ArrayList testFix=ArrayList.FixedSize(testList);
			Console.WriteLine("固定大小的ArrayList内容：");
			test.PrintListValues(testFix,',');
			try
			{
				Console.WriteLine("向固定大小的ArrayList对象添加元素：");
				testFix.Add("HTML");
			}
			catch(Exception e)
			{
				Console.WriteLine("出现异常："+e.ToString());
			}
			Console.WriteLine("修改固定大小的ArrayList对象的元素");
			testFix[4]="language";
			test.PrintListValues(testFix,',');
			testA=null;
			testA=testList.ToArray();
			Console.WriteLine("ToArray操作执行之后，内容如下：");
			test.PrintValues(testA,',');
			Console.WriteLine("数组长度为："+testA.Length);
			ArrayList testRead=ArrayList.ReadOnly(testList);
			try
			{
				Console.WriteLine("修改只读的ArrayList元素");
				testRead[3]="test";
				test.PrintListValues(testRead,',');
			}
			catch(Exception e)
			{
				Console.WriteLine("抛出异常："+e.ToString());
			}
			Console.ReadLine();
		}
		public  void PrintValues( Array testArray, char separator )  
		{
			System.Collections.IEnumerator testEnumerator = testArray.GetEnumerator();
			int i = 0;
			int cols = testArray.GetLength( testArray.Rank - 1 );
			while ( testEnumerator.MoveNext() )  
			{
				if ( i < cols )
				{
					i++;
				} 
				else  
				{
					Console.WriteLine();
					i = 1;
				}
				Console.Write( " "+testEnumerator.Current+separator );
			}
			Console.WriteLine();
		}
		public void PrintListValues( IEnumerable testList, char separator )  
		{
			IEnumerator testEnumerator = testList.GetEnumerator();
			//使用GetEnumerator方法获取枚举数
			while ( testEnumerator.MoveNext() )
				Console.Write( testEnumerator.Current+" "+separator );
			Console.WriteLine();
		}
	}
}