C# 中的 Queue.Enqueue() 方法
C# 中的 Queue.Enqueue() 方法用于将对象添加到 Queue 的末尾。
语法
语法如下 −
public virtual void Enqueue (object ob);
上面,参数 ob 是要添加到 Queue 的对象。
示例
现在让我们看一个示例 −
using System; using System.Collections.Generic; public class Demo { public static void Main(){ Queue<string> queue = new Queue<string>(); queue.Enqueue("Gary"); queue.Enqueue("Jack"); queue.Enqueue("Ryan"); queue.Enqueue("Kevin"); queue.Enqueue("Mark"); queue.Enqueue("Jack"); queue.Enqueue("Ryan"); queue.Enqueue("Kevin"); Console.Write("Count of elements = "); Console.WriteLine(queue.Count); Console.WriteLine("Queue..."); foreach(string i in queue){ Console.WriteLine(i); } queue.Dequeue(); queue.Dequeue(); Console.WriteLine("Queue...UPDATED"); foreach(string i in queue){ Console.WriteLine(i); } Console.Write("Count of elements (updated) = "+queue.Count); queue.Clear(); Console.Write("
Count of elements (updated AGAIN) = "); Console.WriteLine(queue.Count); } }
输出
这将产生以下输出 −
Count of elements = 8 Queue... Gary Jack Ryan Kevin Mark Jack Ryan Kevin Queue...UPDATED Ryan Kevin Mark Jack Ryan Kevin Count of elements (updated) = 6 Count of elements (updated AGAIN) = 0
示例
现在让我们看另一个示例 −
using System; using System.Collections.Generic; public class Demo { public static void Main(){ Queue<string> queue = new Queue<string>(); queue.Enqueue("Gary"); queue.Enqueue("Jack"); queue.Enqueue("Ryan"); queue.Enqueue("Kevin"); queue.Enqueue("Mark"); Console.WriteLine("Queue..."); foreach(string i in queue){ Console.WriteLine(i); } Console.Write("Count of elements = "); Console.WriteLine(queue.Count); queue.Enqueue("Jack"); queue.Enqueue("Ryan"); queue.Enqueue("Kevin"); Console.WriteLine("
Queue...UPDATED"); foreach(string i in queue){ Console.WriteLine(i); } Console.Write("Count of elements (Updated) = "); Console.WriteLine(queue.Count); queue.Dequeue(); queue.Dequeue(); Console.WriteLine("
Queue...UPDATED"); foreach(string i in queue){ Console.WriteLine(i); } Console.Write("Count of elements = "); Console.WriteLine(queue.Count); queue.Clear(); Console.Write("
Count of elements (updated AGAIN) = "); Console.WriteLine(queue.Count); } }
输出
这将产生以下输出 −
Queue... Gary Jack Ryan Kevin Mark Count of elements = 5 Queue...UPDATED Gary Jack Ryan Kevin Mark Jack Ryan Kevin Count of elements (Updated) = 8 Queue...UPDATED Ryan Kevin Mark Jack Ryan Kevin Count of elements = 6 Count of elements (updated AGAIN) = 0
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