從 C# 中的 OrderedDictionary 中刪除所有元素
要從 OrderedDictionary 中刪除所有元素,程式碼如下 −
示例
using System; using System.Collections; using System.Collections.Specialized; public class Demo { public static void Main(){ OrderedDictionary dict = new OrderedDictionary(); dict.Add("A", "Books"); dict.Add("B", "Electronics"); dict.Add("C", "Smart Wearables"); dict.Add("D", "Pet Supplies"); dict.Add("E", "Clothing"); dict.Add("F", "Footwear"); Console.WriteLine("OrderedDictionary elements..."); foreach(DictionaryEntry d in dict){ Console.WriteLine(d.Key + " " + d.Value); } Console.WriteLine("Count of elements in OrderedDictionary = " + dict.Count); dict.Clear(); Console.WriteLine("Count of elements in OrderedDictionary (Updated)= " + dict.Count); } }
輸出
將產生以下輸出 −
OrderedDictionary elements... A Books B Electronics C Smart Wearables D Pet Supplies E Clothing F Footwear Count of elements in OrderedDictionary = 6 Count of elements in OrderedDictionary (Updated)= 0
示例
我們看另一個示例 −
using System; using System.Collections; using System.Collections.Specialized; public class Demo { public static void Main(){ OrderedDictionary dict = new OrderedDictionary(); dict.Add("1", "AB"); dict.Add("2", "CD"); Console.WriteLine("OrderedDictionary elements..."); foreach(DictionaryEntry d in dict){ Console.WriteLine(d.Key + " " + d.Value); } Console.WriteLine("Count of elements in OrderedDictionary = " + dict.Count); dict.Clear(); Console.WriteLine("Count of elements in OrderedDictionary (Updated)= " + dict.Count); } }
輸出
將產生以下輸出 −
OrderedDictionary elements... 1 AB 2 CD Count of elements in OrderedDictionary = 2 Count of elements in OrderedDictionary (Updated)= 0
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