如何在C#列表集合中使用Remove，RemoveAt，RemoveRange方法？
要在C#中实现Remove()和RemoveAt()方法，请尝试以下代码-
首先，设置一个列表。
List<string> myList = new List<string>() {
"mammals",
"reptiles",
"amphibians",
"vertebrate"
};现在，使用Remove()method删除元素。
myList.Remove("reptiles");现在，使用RemoveAt()method通过设置位置来删除元素。
myList.RemoveAt(2);
以下是完整的代码-
示例
using System;
using System.Collections.Generic;
using System.Linq;
class Program {
static void Main() {
List<string> myList = new List<string>() {
"mammals",
"reptiles",
"amphibians",
"vertebrate"
};
Console.Write("Initial list...");
foreach (string list in myList) {
Console.WriteLine(list);
}
Console.Write("Using Remove() method...");
myList.Remove("reptiles");
foreach (string list in myList) {
Console.WriteLine(list);
}
Console.Write("Using RemoveAt() method...");
myList.RemoveAt(2);
foreach (string list in myList) {
Console.WriteLine(list);
}
}
}这是实现RemoveRange()方法的示例。
示例
using System;
using System.Collections.Generic;
using System.Linq;
class Program {
static void Main() {
List<int> myList = new List<int>();
myList.Add(5);
myList.Add(10);
myList.Add(15);
myList.Add(20);
myList.Add(25);
myList.Add(30);
myList.Add(35);
Console.Write("Initial list...");
foreach (int list in myList) {
Console.WriteLine(list);
}
Console.Write("New list...");
int rem = Math.Max(0, myList.Count - 3);
myList.RemoveRange(0, rem);
foreach (int list in myList) {
Console.Write("\n"+list);
}
}
}热门推荐
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