C#中的foreach循环
foreach循环为实现System.Collections.IEnumerable或System.Collections.Generic.IEnumerable<T>接口的类型的实例中的每个元素执行一个语句或语句块。
示例
让我们看一个foreach循环的例子-
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(){
LinkedList<int> linkedList = new LinkedList<int>();
linkedList.AddLast(25);
linkedList.AddLast(50);
linkedList.AddLast(100);
linkedList.AddLast(200);
linkedList.AddLast(400);
linkedList.AddLast(500);
linkedList.AddLast(550);
linkedList.AddLast(600);
linkedList.AddLast(800);
linkedList.AddLast(1200);
Console.WriteLine("Count of nodes = " + linkedList.Count);
foreach(int val in linkedList){
Console.WriteLine(val);
}
Console.WriteLine("Does the LinkedList has node 800? "+linkedList.Contains(800));
}
}输出结果
这将产生以下输出-
Count of nodes = 10 25 50 100 200 400 500 550 600 800 1200 Does the LinkedList has node 800? True