获取包含C#中ListDictionary中的键的ICollection
要获取包含ListDictionary中的键的ICollection,代码如下-
示例
using System; using System.Collections; using System.Collections.Specialized; public class Demo { public static void Main(){ ListDictionary listDict = new ListDictionary(); listDict.Add("1", "Laptop"); listDict.Add("2", "Tablet"); listDict.Add("3", "Desktop"); listDict.Add("4", "Speaker"); listDict.Add("5", "Earphone"); listDict.Add("6", "Headphone"); ICollection col = listDict.Keys; foreach(String s in col){ Console.WriteLine(s); } } }
输出结果
这将产生以下输出-
1 2 3 4 5 6
示例
让我们看另一个例子-
using System; using System.Collections; using System.Collections.Specialized; public class Demo { public static void Main(){ ListDictionary listDict = new ListDictionary(); listDict.Add("A", "Tom"); listDict.Add("B", "John"); listDict.Add("C", "Kevin"); listDict.Add("D", "Tim"); ICollection col = listDict.Keys; foreach(String s in col){ Console.WriteLine(s); } } }
输出结果
这将产生以下输出-
A B C D