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法律研究在 C# 中从列表中删除所有元素
要从列表中删除所有元素，代码如下 −
示例
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.Clear();
Console.WriteLine("
Count of elements in list2 (updated) = "+list2.Count);
}
}输出
这将产生以下输出 −
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) = 0
示例
让我们看另一个示例 −
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(String[] args) {
List<String> list = new List<String>();
list.Add("One");
list.Add("Two");
list.Add("Three");
list.Add("Four");
list.Add("Five");
Console.WriteLine("Elements in List1...");
foreach (string res in list) {
Console.WriteLine(res);
}
Console.WriteLine("
Count of elements in list = "+list.Count);
list.Clear();
Console.WriteLine("
Count of elements in list (updated) = "+list.Count);
}
}输出
这将产生以下输出 −
Elements in List1... One Two Three Four Five Count of elements in list = 5 Count of elements in list (updated) = 0
更新于： 10-Dec-2019
103 次浏览
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