要将 StringDictionary 复制到指定索引处的数组，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(){ StringDictionary strDict = new StringDictionary(); strDict.Add("1", "SUV"); strDict.Add("2", "AUV"); strDict.Add("3", "电动汽车"); strDict.Add("4", "多用途车辆"); strDict.Add("5", "掀背车"); strDict.Add("6", "紧凑型汽车"); strDict.Add("7", "MUV"); strDict.Add("8", "跨界车"); strDict.Add("9", "敞篷车"); strDict.Add("10", "四轮车"); DictionaryEntry[] arr = { new DictionaryEntry(), ... 阅读更多

要将 StringCollection 复制到数组的指定索引处，代码如下所示：示例　在线演示using System; using System.Collections.Specialized; public class Demo { public static void Main(){ StringCollection strCol = new StringCollection(); String[] strArr = new String[] { "Tim", "Tom", "Sam", "Mark", "Katie", "Jacob"}; Console.WriteLine("元素..."); for (int i = 0; i < strArr.Length; i++) { Console.WriteLine(strArr[i]); } strCol.AddRange(strArr); String[] arr = new String[strCol.Count]; strCol.CopyTo(arr, 0); Console.WriteLine("复制后元素... 阅读更多

要将 OrderedDictionary 元素复制到指定索引处的数组实例，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(){ OrderedDictionary dict = new OrderedDictionary (); dict.Add(1, "Harry"); dict.Add(2, "Mark"); dict.Add(3, "John"); dict.Add(4, "Jacob"); dict.Add(5, "Tim"); Console.WriteLine("OrderedDictionary 元素..."); foreach(DictionaryEntry d in dict){ Console.WriteLine(d.Key + " " + d.Value); } DictionaryEntry[] dictArr = new DictionaryEntry[dict.Count]; ... 阅读更多

要将 ListDictionary 复制到指定索引处的数组实例，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(){ ListDictionary dict = new ListDictionary(); dict.Add(1, "Harry"); dict.Add(2, "Mark"); dict.Add(3, "John"); dict.Add(4, "Jacob"); dict.Add(5, "Tim"); dict.Add(6, "Sam"); dict.Add(7, "Tom"); dict.Add(8, "Kevin"); Console.WriteLine("ListDictionary 元素..."); foreach(DictionaryEntry d in dict){ Console.WriteLine(d.Key + " " + ... 阅读更多

要向 HybridDictionary 添加指定的键值对，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("A", "包"); dict.Add("B", "电子产品"); dict.Add("C", "智能穿戴设备"); dict.Add("D", "宠物用品"); Console.WriteLine("HybridDictionary 元素..."); foreach(DictionaryEntry d in dict){ Console.WriteLine(d.Key + " " + d.Value); } Console.WriteLine("HybridDictionary 是否具有固定大小？= "+dict.IsFixedSize); ... 阅读更多

要将指定集合的元素添加到 List 的末尾，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(String[] args){ List list = new List(); list.Add("Andy"); list.Add("Gary"); list.Add("Katie"); list.Add("Amy"); Console.WriteLine("List 中的元素..."); foreach (string res in list){ Console.WriteLine(res); } string[] strArr = { "John", "Jacob" }; list.AddRange(strArr); Console.WriteLine("List 中的元素...已更新"); ... 阅读更多

要向 LinkedList 的开头添加新节点或值，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(){ LinkedList list = new LinkedList(); list.AddLast("A"); list.AddLast("B"); list.AddLast("C"); list.AddLast("D"); list.AddLast("E"); list.AddLast("F"); Console.WriteLine("节点数 = " + list.Count); Console.WriteLine("LinkedList 中的元素..."); foreach (string res in list){ Console.WriteLine(res); } list.AddLast("G"); ... 阅读更多

要检查 OrderedDictionary 集合是否为只读，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(){ OrderedDictionary dict = new OrderedDictionary(); dict.Add("1", "One"); dict.Add("2", "Two"); dict.Add("3", "Three"); dict.Add("4", "Four"); dict.Add("5", "Five"); dict.Add("6", "Six"); dict.Add("7", "Seven"); dict.Add("8", "Eight"); ICollection col = dict.Values; String[] strVal = new String[dict.Count]; col.CopyTo(strVal, 0); Console.WriteLine("显示... 阅读更多

要将指定的 Decimal 值转换为等效的 16 位无符号整数，代码如下所示：示例　在线演示using System; public class Demo { public static void Main() { Decimal val = 875.647m; Console.WriteLine("Decimal 值 = "+val); ushort res = Decimal.ToUInt16(val); Console.WriteLine("16 位无符号整数 = "+res); } }输出这将产生以下输出：Decimal 值 = 875.647 16 位无符号整数 = 875示例让我们看另一个示例： 在线演示using System; public class Demo { public static void Main() { Decimal val = 0.001m; Console.WriteLine("Decimal 值 ... 阅读更多

要检查 OrderedDictionary 集合是否包含特定键，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(){       OrderedDictionary dict = new OrderedDictionary();       dict.Add("1", "One");       dict.Add("2", "Two");       dict.Add("3", "Three");       dict.Add("4", "Four");       dict.Add("5", "Five");       dict.Add("6", "Six");       dict.Add("7", "Seven");       dict.Add("8", "Eight");       ICollection col = dict.Values;       String[] strVal = new String[dict.Count];       col.CopyTo(strVal, 0);     ... 阅读更多