在C#中获取包含OrderedDictionary中的键的ICollection

要获取包含OrderedDictionary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() { OrderedDictionary dict = new OrderedDictionary(); dict.Add("1", "One"); dict.Add("2", "Two"); dict.Add("3", "Three"); dict.Add("4", "Four"); dict.Add("5", "Five"); dict.Add("6", "Six"); dict.Add("7", "Seven"); dict.Add("8", "Eight"); ICollection col = dict.Keys; String[] strKeys = new String[dict.Count]; col.CopyTo(strKeys, 0); Console.WriteLine("显示键..."); for (int i = 0; i < dict.Count; i++) { Console.WriteLine(strKeys[i]); } } }

输出结果

这将产生以下输出-

显示键... 1 2 3 4 5 6 7 8

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() { OrderedDictionary dict = new OrderedDictionary(); dict.Add("One", "John"); dict.Add("Two", "Tim"); dict.Add("Three", "Katie"); dict.Add("Four", "Andy"); dict.Add("Five", "Gary"); dict.Add("Six", "Amy"); ICollection col = dict.Keys; String[] strKeys = new String[dict.Count]; col.CopyTo(strKeys, 0); Console.WriteLine("显示键..."); for (int i = 0; i < dict.Count; i++) { Console.WriteLine(strKeys[i]); } } }

输出结果

这将产生以下输出-

显示键... One Two Three Four Five Six