C# hashtable如何更新内部所有value

主要实现代码如下：

1. using System;
   
2. using System.Collections.Generic;
   
3. using System.Linq;
   
4. using System.Text;
   
5. using System.Collections;
   
6. 
   
7. namespace AlignForHashtable
   
8. {
   
9.     class Program
   
10.     {
    
11.         private static Hashtable mHTable = new Hashtable();
    
12. 
    
13.         private static void initHTable()
    
14.         {
    
15.             mHTable.Clear();
    
16.             for (int i = 0; i 10; i++)
    
17.             {
    
18.                 mHTable.Add(i, "Value" + i);
    
19.             }
    
20.         }
    
21. 
    
22.         // Batch update all the element value .....
    
23.         private static void updateHashtableValue(string newValue)
    
24.         {
    
25.             Hashtable htable = new Hashtable();
    
26.             foreach (DictionaryEntry de in mHTable)
    
27.             {
    
28.                 string valueStr = newValue;
    
29.                 htable.Add(de.Key, valueStr);
    
30.             }
    
31. 
    
32.             mHTable.Clear();
    
33.             mHTable = htable;
    
34. 
    
35.             /* Error Usage ... */
    
36.             //Hashtable htable = this.mHTable;
    
37.             //this.mHTable.Clear();
    
38.             //string valueStr = string.Empty;
    
39. 
    
40.             //foreach (DictionaryEntry de in htable)
    
41.             //{
    
42.             // valueStr = newValue;
    
43.             // this.mHTable.Add(de.Key, valueStr);
    
44.             //}
    
45.         }
    
46. 
    
47.         static void Main(string[] args)
    
48.         {
    
49.             
    
50.             Console.WriteLine("Before update ..... \n");
    
51.             initHTable();
    
52. 
    
53.             foreach (DictionaryEntry de in mHTable)
    
54.             {
    
55.                 Console.WriteLine("Key={0},Value={1}", de.Key, de.Value);
    
56.             }
    
57. 
    
58.             updateHashtableValue("NBA all stars...");
    
59. 
    
60.             Console.WriteLine();
    
61.             Console.WriteLine("After update ..... \n");
    
62. 
    
63.             foreach (DictionaryEntry de in mHTable)
    
64.             {
    
65.                 Console.WriteLine("Key={0},Value={1}", de.Key, de.Value);
    
66.             }
    
67. 
    
68.             Console.ReadLine();
    
69.         }
    
70. 
    
71.     }
    
72. }

注意！上面代码中，屏蔽代码的更新方法是错误的。

需要留意！！