获取或设置C#中ArrayList中指定索引处的元素
要获取或设置ArrayList中指定索引处的元素，代码如下-
示例
using System;
using System.Collections;
public class Demo {
public static void Main() {
ArrayList arrList = new ArrayList();
arrList.Add("Laptop");
arrList.Add("Desktop");
arrList.Add("Notebook");
arrList.Add("Ultrabook");
arrList.Add("Tablet");
arrList.Add("Headphone");
arrList.Add("Speaker");
Console.WriteLine("Elements in ArrayList...");
foreach(string str in arrList) {
Console.WriteLine(str);
}
Console.WriteLine("Element at index 5 = " + arrList[5]);
}
}输出结果
这将产生以下输出-
Elements in ArrayList... Laptop Desktop Notebook Ultrabook Tablet Headphone Speaker Element at index 5 = Headphone
示例
让我们看另一个例子-
using System;
using System.Collections;
public class Demo {
public static void Main() {
ArrayList arrList = new ArrayList();
arrList.Add("Laptop");
arrList.Add("Desktop");
arrList.Add("Notebook");
arrList.Add("Ultrabook");
arrList.Add("Tablet");
arrList.Add("Headphone");
arrList.Add("Speaker");
Console.WriteLine("Elements in ArrayList...");
foreach(string str in arrList) {
Console.WriteLine(str);
}
Console.WriteLine("Element at index 5 = " + arrList[5]);
arrList[5] = "SSD";
Console.WriteLine("Element at index 5 (Updated) = " + arrList[5]);
}
}输出结果
这将产生以下输出-
Elements in ArrayList... Laptop Desktop Notebook Ultrabook Tablet Headphone Speaker Element at index 5 = Headphone Element at index 5 (Updated) = SSD
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