要获取当前托管线程的唯一标识符，代码如下所示：示例 在线演示using System; using System.Threading; public class Demo {    public static void Main(){       Thread thread = new Thread(new ThreadStart(demo1));       ThreadPool.QueueUserWorkItem(new WaitCallback(demo2));       Console.WriteLine("ManagedThreadId = "+thread.ManagedThreadId);    }    public static void demo1(){       Thread.Sleep(2000);    }    public static void demo2(object stateInfo){       Console.WriteLine("线程属于托管线程池？ = "+Thread.CurrentThread.IsThreadPoolThread);    } }输出这将产生以下输出：ManagedThreadId = 3 线程属于托管线程池？ = True示例让我们现在... 阅读更多

要获取元组元素的类型，代码如下所示：示例 在线演示using System; public class Demo {    public static void Main(String[] args){       var tuple1 = Tuple.Create(150, 1500, Tuple.Create(50, 100));       var tuple2 = Tuple.Create(150, 1500, Tuple.Create(100, 200));       Console.WriteLine("Tuple1 等于 Tuple2？ = "+tuple1.Equals(tuple2));       Console.WriteLine("Tuple1 的哈希码 = "+tuple1.GetHashCode());       Console.WriteLine("Tuple1 的类型 = "+tuple1.GetType());       Console.WriteLine("Tuple2 的哈希码 = "+tuple2.GetHashCode());       Console.WriteLine("Tuple1 的类型 = "+tuple2.GetType());    } }输出这将产生以下输出：Tuple1 等于 Tuple2？ = ... 阅读更多

要获取当前实例的类型，代码如下所示：示例 在线演示using System; public class Demo {    public static void Main(){       string s = "Demo";       Console.WriteLine("字符串 = " +s);       Console.WriteLine("字符串类型 = " +s.GetType());    } }输出这将产生以下输出：字符串 = Demo 字符串类型 = System.String示例让我们现在看看另一个示例： 在线演示using System; public class Demo {    public static void Main(){       double val1 = 5.5;       int val2 = 10;       short val3 = 2; ... 阅读更多

要获取 ArrayList 中一部分元素的枚举器，代码如下所示：示例 在线演示using System; using System.Collections; public class Demo {    public static void Main(){       ArrayList arrList = new ArrayList();       arrList.Add(100);       arrList.Add(200);       arrList.Add(300);       arrList.Add(400);       arrList.Add(500);       Console.WriteLine("显示一定范围内的元素...");       IEnumerator demoEnum = arrList.GetEnumerator(1, 3);       while (demoEnum.MoveNext()) {          Object ob = demoEnum.Current;          Console.WriteLine(ob);       }    } ... 阅读更多

要获取或设置 BitArray 中特定位置的位的数值，代码如下所示：示例 在线演示using System; using System.Collections; public class Demo {    public static void Main(){       BitArray arr1 = new BitArray(2);       BitArray arr2 = new BitArray(2);       arr1[0] = false;       arr1[1] = true;       Console.WriteLine("BitArray1 的长度 = "+arr1.Length);       Console.WriteLine("BitArray1 的第一个元素 = "+arr1.Get(0));       arr2[0] = false;       arr2[1] = true;       Console.WriteLine("BitArray2 的长度 = "+arr2.Length);       ... 阅读更多

要获取元组的第一个元素，代码如下所示：示例 在线演示using System; public class Demo {    public static void Main(String[] args){       var tuple1 = Tuple.Create(75, 200, 500, 700, 100, 1200, 1500);       var tuple2 = Tuple.Create(75, 200, 500, 700, 100, 1200, 1500);       Console.WriteLine("Tuple1 等于 Tuple2？ = "+tuple1.Equals(tuple2));       Console.WriteLine("Tuple1 的哈希码 = "+tuple1.GetHashCode());       Console.WriteLine("Tuple2 的哈希码 = "+tuple2.GetHashCode());       Console.WriteLine("Tuple1 的第 5 个元素 = "+tuple1.Item5);       Console.WriteLine("Tuple2 的第 5 个元素 = "+tuple2.Item5);       Console.WriteLine("Tuple1 的第 1 个元素... 阅读更多

要检查两个 ListDictionary 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(){       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 的元素...");       foreach(DictionaryEntry d in dict1){          Console.WriteLine(d.Key + " " + d.Value);       }       ListDictionary dict2 ... 阅读更多

要检查两个 List 对象是否相等，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 list1 = new List();       list1.Add("One");       list1.Add("Two");       list1.Add("Three");       list1.Add("Four");       list1.Add("Five");       Console.WriteLine("List1 中的元素...");       foreach (string res in list1){          Console.WriteLine(res);       }       List list2 = new List();       list2.Add("India");       list2.Add("US");       list2.Add("UK");   ... 阅读更多

要从 Hashtable 中删除指定键的元素，代码如下所示：示例 在线演示using System; using System.Collections; public class Demo {    public static void Main(){       Hashtable hash = new Hashtable(10);       hash.Add("1", "A");       hash.Add("2", "B");       hash.Add("3", "C");       hash.Add("4", "D");       hash.Add("5", "E");       hash.Add("6", "F");       hash.Add("7", "G");       hash.Add("8", "H");       hash.Add("9", "I");       hash.Add("10", "J");       Console.WriteLine("Hashtable 的键值对...");       foreach(DictionaryEntry ... 阅读更多

要获取元组的第五个元素，代码如下所示：示例 在线演示using System; public class Demo {    public static void Main(String[] args){       var tuple1 = Tuple.Create(75, 200, 500, 700, 100, 1200, 1500);       var tuple2 = Tuple.Create(75, 200, 500, 700, 100, 1200, 1500);       Console.WriteLine("Tuple1 等于 Tuple2？ = "+tuple1.Equals(tuple2));       Console.WriteLine("Tuple1 的哈希码 = "+tuple1.GetHashCode());       Console.WriteLine("Tuple2 的哈希码 = "+tuple2.GetHashCode());       Console.WriteLine("Tuple1 的第 5 个元素 = "+tuple1.Item5);       Console.WriteLine("Tuple2 的第 5 个元素 = "+tuple2.Item5);    } }输出这将产生... 阅读更多