检查 Hashtable 是否已同步 C#
要检查 Hashtable 是否已同步,代码如下 −
示例
using System; using System.Collections; public class Demo { public static void Main() { Hashtable hash = new Hashtable(); hash.Add("One", "Katie"); hash.Add("Two", "John"); hash.Add("Three", "Barry"); hash.Add("Four", ""); hash.Add("Five","Harry"); hash.Add("Six", "F"); hash.Add("Seven", "Tom"); hash.Add("Eight","Andy"); hash.Add("Nine", "I"); hash.Add("Ten", "Tim"); Console.WriteLine("Hashtable Key and Value pairs..."); foreach(DictionaryEntry entry in hash) { Console.WriteLine("{0} and {1} ", entry.Key, entry.Value); } Console.WriteLine("Is the Hashtable having fixed size? = "+hash.IsFixedSize); Console.WriteLine("If Hashtable read-only? = "+hash.IsReadOnly); Hashtable hash2 = Hashtable.Synchronized(hash); Console.WriteLine("Is Hash synchronized = "+hash2.IsSynchronized); } }
输出
这将生成以下输出 −
Hashtable Key and Value pairs... One and Katie Ten and Tim Five and Harry Three and Barry Seven and Tom Two and John Four and Eight and Andy Nine and I Six and F Is the Hashtable having fixed size? = False If Hashtable read-only? = False Is Hash synchronized = True
示例
我们再看一个例子 −
using System; using System.Collections; public class Demo { public static void Main() { Hashtable hash = new Hashtable(); hash.Add("One", 1); hash.Add("Two", 2); hash.Add("Three", 2); hash.Add("Four", 4); hash.Add("Five",5); hash.Add("Six", 6); hash.Add("Seven", 7); Console.WriteLine("Hashtable Key and Value pairs..."); foreach(DictionaryEntry entry in hash) { Console.WriteLine("{0} and {1} ", entry.Key, entry.Value); } Console.WriteLine("Is the Hashtable having fixed size? = "+hash.IsFixedSize); Console.WriteLine("If Hashtable read-only? = "+hash.IsReadOnly); Console.WriteLine("Is Hash synchronized = "+hash.IsSynchronized); } }
输出
这将生成以下输出 −
Hashtable Key and Value pairs... One and 1 Five and 5 Three and 2 Seven and 7 Two and 2 Four and 4 Six and 6 Is the Hashtable having fixed size? = False If Hashtable read-only? = False Is Hash synchronized = False
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