本文实例讲述了C#将HashTable中键列表或值列表复制到一维数组的方法。分享给大家供大家参考。具体如下:
下面的示例说明如何将 Hashtable 中键的列表或值的列表复制到一维 Array 中。
using System;
using System.Collections;
public class SamplesHashtable {
public static void Main() {
// Creates and initializes the source Hashtable.
Hashtable mySourceHT = new Hashtable();
mySourceHT.Add( \"A\", \"valueA\" );
mySourceHT.Add( \"B\", \"valueB\" );
// Creates and initializes the one-dimensional target Array.
String[] myTargetArray = new String[15];
myTargetArray[0] = \"The\";
myTargetArray[1] = \"quick\";
myTargetArray[2] = \"brown\";
myTargetArray[3] = \"fox\";
myTargetArray[4] = \"jumped\";
myTargetArray[5] = \"over\";
myTargetArray[6] = \"the\";
myTargetArray[7] = \"lazy\";
myTargetArray[8] = \"dog\";
// Displays the values of the target Array.
Console.WriteLine( \"The target Array contains the following before:\" );
PrintValues( myTargetArray, \' \' );
// Copies the keys in the source Hashtable to the target Hashtable, starting at index 6.
Console.WriteLine( \"After copying the keys, starting at index 6:\" );
mySourceHT.Keys.CopyTo( myTargetArray, 6 );
// Displays the values of the target Array.
PrintValues( myTargetArray, \' \' );
// Copies the values in the source Hashtable to the target Hashtable, starting at index 6.
Console.WriteLine( \"After copying the values, starting at index 6:\" );
mySourceHT.Values.CopyTo( myTargetArray, 6 );
// Displays the values of the target Array.
PrintValues( myTargetArray, \' \' );
}
public static void PrintValues( String[] myArr, char mySeparator ) {
for ( int i = 0; i < myArr.Length; i++ )
Console.Write( \"{0}{1}\", mySeparator, myArr[i] );
Console.WriteLine();
}
}
/*
This code produces the following output.
The target Array contains the following before:
The quick brown fox jumped over the lazy dog
After copying the keys, starting at index 6:
The quick brown fox jumped over B A dog
After copying the values, starting at index 6:
The quick brown fox jumped over valueB valueA dog
*/
希望本文所述对大家的C#程序设计有所帮助。
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