从 C# 中的列表中删除一系列元素


要从列表中删除一系列元素,代码如下:

实例

 在线演示

using System;
using System.Collections.Generic;
public class Demo {
   public static void Main(String[] args){
      List<string> list1 = new List<string>();
      list1.Add("One");
      list1.Add("Two");
      list1.Add("Three");
      list1.Add("Four");
      list1.Add("Five");
      Console.WriteLine("Elements in List1...");
      foreach (string res in list1){
         Console.WriteLine(res);
      }
      List<string> list2 = new List<string>();
      list2.Add("India");
      list2.Add("US");
      list2.Add("UK");
      list2.Add("Canada");
      list2.Add("Poland");
      list2.Add("Netherlands");
      Console.WriteLine("Elements in List2...");
      foreach (string res in list2){
         Console.WriteLine(res);
      }
      Console.WriteLine("
Is List2 equal to List1? = "+list2.Equals(list1));       Console.WriteLine("
Count of elements in list2 = "+list2.Count);       list2.RemoveRange(1,3);       Console.WriteLine("
Count of elements in list2 (updated) = "+list2.Count);       Console.WriteLine("Elements in List2... UPDATED");       foreach (string res in list2){          Console.WriteLine(res);       }    } }

输出

将生成以下输出:

Elements in List1...
One
Two
Three
Four
Five
Elements in List2...
India
US
UK
Canada
Poland
Netherlands

Is List2 equal to List1? = False

Count of elements in list2 = 6
Count of elements in list2 (updated) = 3
Elements in List2... UPDATED
India
Poland
Netherlands

实例

让我们看另一个示例:

 在线演示

using System;
using System.Collections.Generic;
public class Demo {
   public static void Main(String[] args){
      List<string> list = new List<string>();
      list.Add("India");
      list.Add("US");
      list.Add("UK");
      list.Add("Canada");
      list.Add("Poland");
      list.Add("Netherlands");
      list.Add("Bhutan");
      list.Add("Singapore");
      Console.WriteLine("Elements in List...");
      foreach (string res in list){
         Console.WriteLine(res);
      }
      Console.WriteLine("
Count of elements in list = "+list.Count);       list.RemoveRange(1,3);       Console.WriteLine("
Count of elements in list2 (updated) = "+list.Count);       Console.WriteLine("Elements in List... UPDATED");       foreach (string res in list){          Console.WriteLine(res);       }       list.RemoveRange(2,3);       Console.WriteLine("
Count of elements in list2 (updated) = "+list.Count);       Console.WriteLine("Elements in List... UPDATED");       foreach (string res in list){          Console.WriteLine(res);       }    } }

输出

将生成以下输出:

Elements in List...
India
US
UK
Canada
Poland
Netherlands
Bhutan
Singapore

Count of elements in list = 8

Count of elements in list2 (updated) = 5
Elements in List... UPDATED
India
Poland
Netherlands
Bhutan
Singapore
Count of elements in list2 (updated) = 2
Elements in List... UPDATED
India
Poland

更新时间:06-Dec-2019

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