要从 HybridDictionary 中移除指定的键值对，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 dict1 = new HybridDictionary();       dict1.Add("A", "Books");       dict1.Add("B", "Electronics");       dict1.Add("C", "Smart Wearables");       dict1.Add("D", "Pet Supplies");       dict1.Add("E", "Clothing");       dict1.Add("F", "Footwear");       Console.WriteLine("HybridDictionary1 元素...");       foreach(DictionaryEntry d in dict1) {          Console.WriteLine(d.Key + " " + d.Value);       }       ... 阅读更多

要从 StringCollection 中移除第一次出现的元素，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 stringCol = new StringCollection();       String[] arr = new String[] { "100", "200", "100", "400", "500" };       Console.WriteLine("数组元素...");       foreach (string res in arr) {          Console.WriteLine(res);       }       stringCol.AddRange(arr);       Console.WriteLine("元素总数 = "+stringCol.Count);       stringCol.Remove("100");       Console.WriteLine("现在的元素总数 = ... 阅读更多

要检查 StringCollection 是否为只读，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 stringCol = new StringCollection();       String[] arr = new String[] { "100", "200", "300", "400", "500" };       Console.WriteLine("数组元素...");       foreach (string res in arr) {          Console.WriteLine(res);       }       stringCol.AddRange(arr);       Console.WriteLine("StringCollection 是否只读？ = "+stringCol.IsReadOnly);       Console.WriteLine("指定的字符串是否在 StringCollection 中？ = "+stringCol.Contains("800"));   ... 阅读更多

要检查 StringCollection 是否包含指定的字符串，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 stringCol = new StringCollection();       String[] arr = new String[] { "100", "200", "300", "400", "500" };       Console.WriteLine("数组元素...");       foreach (string res in arr) {          Console.WriteLine(res);       }       stringCol.AddRange(arr);       Console.WriteLine("指定的字符串是否在 StringCollection 中？ = "+stringCol.Contains("800"));    } }输出这将产生以下 ... 阅读更多

要从 ListDictionary 中移除具有指定键的条目，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 dict1 = new ListDictionary();       dict1.Add("A", "Books");       dict1.Add("B", "Electronics");       dict1.Add("C", "Smart Wearables");       dict1.Add("D", "Pet Supplies");       dict1.Add("E", "Clothing");       dict1.Add("F", "Footwear");       Console.WriteLine("ListDictionary1 元素...");       foreach(DictionaryEntry d in dict1) {          Console.WriteLine(d.Key + " " + d.Value);       }       ... 阅读更多

要从 OrderedDictionary 中移除指定索引处的条目，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("A", "Books");       dict.Add("B", "Electronics");       dict.Add("C", "Smart Wearables");       dict.Add("D", "Pet Supplies");       dict.Add("E", "Clothing");       dict.Add("F", "Footwear");       Console.WriteLine("OrderedDictionary 元素...");       foreach(DictionaryEntry d in dict) {          Console.WriteLine(d.Key + " " + d.Value);       }     ... 阅读更多

要检查两个 SortedList 对象是否相等，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 list1 = new SortedList();       list1.Add("One", 1);       list1.Add("Two ", 2);       list1.Add("Three ", 3);       list1.Add("Four", 4);       list1.Add("Five", 5);       list1.Add("Six", 6);       list1.Add("Seven ", 7);       list1.Add("Eight ", 8);       list1.Add("Nine", 9);       list1.Add("Ten", 10);       Console.WriteLine("SortedList1 元素...");       foreach(DictionaryEntry ... 阅读更多

要检查两个 OrderedDictionary 对象是否相等，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 dict1 = new OrderedDictionary();       dict1.Add("A", "Books");       dict1.Add("B", "Electronics");       dict1.Add("C", "Smart Wearables");       dict1.Add("D", "Pet Supplies");       dict1.Add("E", "Clothing");       dict1.Add("F", "Footwear");       Console.WriteLine("OrderedDictionary1 元素...");       foreach(DictionaryEntry d in dict1) {          Console.WriteLine(d.Key + " " + d.Value);       }       ... 阅读更多

从SortedList中移除指定键的元素，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 sortedList = new SortedList(); sortedList.Add("A", "1"); sortedList.Add("B", "2"); sortedList.Add("C", "3"); sortedList.Add("D", "4"); sortedList.Add("E", "5"); sortedList.Add("F", "6"); sortedList.Add("G", "7"); sortedList.Add("H", "8"); sortedList.Add("I", "9"); sortedList.Add("J", "10"); Console.WriteLine("SortedList 元素..."); foreach(DictionaryEntry d ... 阅读更多

从ArrayList中移除指定索引处的元素，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) { ArrayList list1 = new ArrayList(); list1.Add("A"); list1.Add("B"); list1.Add("C"); list1.Add("D"); list1.Add("E"); list1.Add("F"); list1.Add("G"); list1.Add("H"); list1.Add("I"); Console.WriteLine("ArrayList1 中的元素..."); foreach (string res in list1) { Console.WriteLine(res); } ... 阅读更多