什么是C#列表中的RemoveAt方法？
C#中的RemoveAt()方法用于在您设置的位置处删除列表中的元素。
首先，在列表中设置元素-
var subjects = new List();
subjects.Add("Physics");
subjects.Add("Chemistry");
subjects.Add("Biology");
subjects.Add("Science");要删除元素，请在要消除该元素的位置设置索引。以下是从第三位置删除元素-
subjects.RemoveAt(2);
让我们看完整的代码-
示例
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(string[] args) {
var subjects = new List();
subjects.Add("Physics");
subjects.Add("Chemistry");
subjects.Add("Biology");
subjects.Add("Science");
Console.WriteLine("ELEMENTS:");
foreach (var sub in subjects) {
Console.WriteLine(sub);
}
// remove element at 3rd position
subjects.RemoveAt(2);
Console.WriteLine("After removing an element:");
foreach (var sub in subjects) {
Console.WriteLine(sub);
}
}
}输出结果
ELEMENTS: Physics Chemistry Biology Science After removing an element: Physics Chemistry Science