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。
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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
*/
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