在C#中创建 Hashtable 的同步包装器
要为Hashtable创建一个同步包装器，代码如下-
示例
using System;
using System.Collections;
public class Demo {
public static void Main() {
Hashtable hash = new Hashtable();
hash.Add("1", "AB");
hash.Add("2", "CD");
hash.Add("3", "EF");
hash.Add("4", "GH");
hash.Add("5", "IJ");
hash.Add("6", "KL");
Console.WriteLine("Hashtable 中的元素...");
foreach(DictionaryEntry d in hash) {
Console.WriteLine("Key = "+d.Key + ", Value = " + d.Value);
}
Console.WriteLine("哈希表是否已同步? = "+hash.IsSynchronized);
}
}输出结果
这将产生以下输出-
Hashtable 中的元素... Key = 1, Value = AB Key = 2, Value = CD Key = 3, Value = EF Key = 4, Value = GH Key = 5, Value = IJ Key = 6, Value = KL 哈希表是否已同步? = False
示例
让我们看另一个例子-
using System;
using System.Collections;
public class Demo {
public static void Main() {
Hashtable hash = new Hashtable();
hash.Add("1", "Mark");
hash.Add("2", "Gary");
hash.Add("3", "Jacob");
hash.Add("4", "Andy");
hash.Add("5", "Jack");
Console.WriteLine("Hashtable 中的元素...");
foreach(DictionaryEntry d in hash) {
Console.WriteLine("Key = "+d.Key + ", Value = " + d.Value);
}
Console.WriteLine("哈希表是否已同步? = "+hash.IsSynchronized);
Hashtable hash2 = Hashtable.Synchronized(hash);
Console.WriteLine("哈希表是否已同步? = "+hash2.IsSynchronized);
}
}输出结果
这将产生以下输出-
Hashtable 中的元素... Key = 1, Value = Mark Key = 2, Value = Gary Key = 3, Value = Jacob Key = 4, Value = Andy Key = 5, Value = Jack 哈希表是否已同步? = False 哈希表是否已同步? = True