要创建具有指定容量的 StringBuilder，代码如下所示：示例 在线演示using System; using System.Text; public class Demo { public static void Main(String[] args){ StringBuilder strBuilder1 = new StringBuilder("Tim"); StringBuilder strBuilder2 = new StringBuilder("Tom"); StringBuilder strBuilder3 = new StringBuilder(); StringBuilder strBuilder4 = new StringBuilder(5); strBuilder2 = strBuilder3; Console.WriteLine("StringBuilder3 是否等于 StringBuilder2？= "+strBuilder3.Equals(strBuilder2)); Console.WriteLine("StringBuider1 容量 = "+strBuilder1.Capacity); Console.WriteLine("StringBuider2 容量 = "+strBuilder2.Capacity); Console.WriteLine("StringBuider3 容量 = "+strBuilder3.Capacity); Console.WriteLine("StringBuider4 容量 ... 阅读更多

要为 SortedList 对象创建同步包装器，代码如下所示：示例 在线演示using System; using System.Collections; public class Demo { public static void Main(){ SortedList sortedList = new SortedList(); sortedList.Add("1", "Tom"); sortedList.Add("2", "Ryan"); sortedList.Add("3", "Nathan"); Console.WriteLine("SortedList 元素..."); foreach(DictionaryEntry d in sortedList){ Console.WriteLine("键 = "+d.Key + ", 值 = " + d.Value); } SortedList sortedList2 = SortedList.Synchronized(sortedList); Console.WriteLine("SortedList 是否已同步？= "+sortedList2.IsSynchronized); } }输出这将 ... 阅读更多

要计算 HybridDictionary 中键值对的数量，代码如下所示：示例 在线演示using System; using System.Collections; using System.Collections.Specialized; public class Demo { public static void Main(){ HybridDictionary dict1 = new HybridDictionary(); dict1.Add("A", "SUV"); dict1.Add("B", "MUV"); dict1.Add("C", "AUV"); Console.WriteLine("HybridDictionary1 元素..."); foreach(DictionaryEntry d in dict1){ Console.WriteLine(d.Key + " " + d.Value); } Console.WriteLine("Dictionary1 中键值对的数量 = "+dict1.Count); HybridDictionary dict2 = new HybridDictionary(); ... 阅读更多

要将 SortedList 元素复制到数组对象，代码如下所示：示例 在线演示using System; using System.Collections; public class Demo { public static void Main(String[] args){ SortedList list = new SortedList(); list.Add("1", "AB"); list.Add("2", "CD"); list.Add("3", "EF"); list.Add("4", "GH"); list.Add("5", "IJ"); list.Add("6", "JK"); list.Add("7", "KL"); list.Add("8", "LM"); Console.WriteLine("SortedList 元素..."); foreach(DictionaryEntry d in list){ Console.WriteLine("键 = "+d.Key + ", 值 = ... 阅读更多

要将 HybridDictionary 条目复制到数组实例，代码如下所示：示例 在线演示using System; using System.Collections; using System.Collections.Specialized; public class Demo { public static void Main(){ HybridDictionary dict = new HybridDictionary(); dict.Add("1", "SUV"); dict.Add("2", "AUV"); dict.Add("3", "Utility Vehicle"); dict.Add("4", "MUV"); dict.Add("5", "Compact Car"); dict.Add("6", "Convertible"); Console.WriteLine("HybridDictionary 键值对..."); foreach(DictionaryEntry entry in dict){ Console.WriteLine("{0} and {1} ", entry.Key, entry.Value); } ... 阅读更多

要将 Hashtable 元素复制到数组实例，代码如下所示：示例 在线演示using System; using System.Collections; public class Demo { public static void Main(){ Hashtable hash = new Hashtable(); hash.Add("1", "AB"); hash.Add("2", "CD"); hash.Add("3", "EF"); hash.Add("4", "GH"); hash.Add("5", "IJ"); Console.WriteLine("Hashtable 键值对..."); foreach(DictionaryEntry entry in hash){ Console.WriteLine("{0} and {1} ", entry.Key, entry.Value); } Console.WriteLine("复制到数组实例..."); DictionaryEntry[] ... 阅读更多

要获取 SortedSet 的子集，代码如下所示：示例 在线演示using System; using System.Collections.Generic; public class Demo { public static void Main(){ SortedSet set1 = new SortedSet(); set1.Add("AB"); set1.Add("BC"); set1.Add("CD"); set1.Add("EF"); Console.WriteLine("SortedSet1 中的元素..."); foreach (string res in set1){ Console.WriteLine(res); } SortedSet set2 = new SortedSet(); set2.Add("BC"); set2.Add("CD"); set2.Add("DE"); set2.Add("EF"); ... 阅读更多

要创建 Stack，代码如下所示：示例 在线演示using System; using System.Collections.Generic; public class Demo { public static void Main(){ Stack stack = new Stack(); stack.Push(100); stack.Push(150); stack.Push(175); stack.Push(200); stack.Push(225); stack.Push(250); stack.Push(300); stack.Push(400); stack.Push(450); stack.Push(500); Console.WriteLine("堆栈中的元素："); foreach(var val in stack){ Console.WriteLine(val); } Console.WriteLine("元素数量 ... 阅读更多

要将整个 ArrayList 复制到从指定索引开始的一维数组，代码如下所示 -示例 在线演示using System; using System.Collections; public class Demo {    public static void Main(){       ArrayList list = new ArrayList();       list.Add("PQ");       list.Add("RS");       list.Add("TU");       list.Add("UV");       list.Add("WX");       list.Add("YZ");       Console.WriteLine("ArrayList 元素...");       for (int i = 0; i < list.Count; i++) {          Console.WriteLine(list[i]);       }       String[] strArr = new String[6] ... 阅读更多

要将 ArrayList 的元素复制到新数组，代码如下所示 -示例 在线演示using System; using System.Collections; public class Demo {    public static void Main(){       ArrayList list = new ArrayList(10);       list.Add("A");       list.Add("B");       list.Add("C");       list.Add("D");       list.Add("E");       list.Add("F");       list.Add("G");       list.Add("H");       list.Add("I");       list.Add("J");       Console.WriteLine("ArrayList 元素...");       foreach(string str in list){          Console.WriteLine(str);       }     ... 阅读更多