[C#] String.Builder.CopTo 範例

轉自msdn StringBuilder. CopyTo 方法

[ComVisibleAttribute(false)]
public void CopyTo(
    int sourceIndex,
    char[] destination,
    int destinationIndex,
    int count
)

[ComVisibleAttribute(false)]
public void CopyTo(
    int sourceIndex,
    char[] destination,
    int destinationIndex,
    int count
)

[ComVisibleAttribute(false)]
public:
void CopyTo(
    int sourceIndex, 
    array<wchar_t>^ destination, 
    int destinationIndex, 
    int count
)

[ComVisibleAttribute(false)]
public:
void CopyTo(
    int sourceIndex, 
    array<wchar_t>^ destination, 
    int destinationIndex, 
    int count
)

[<ComVisibleAttribute(false)>]
member CopyTo : 
        sourceIndex:int * 
        destination:char[] * 
        destinationIndex:int * 
        count:int -> unit

[<ComVisibleAttribute(false)>]
member CopyTo : 
        sourceIndex:int * 
        destination:char[] * 
        destinationIndex:int * 
        count:int -> unit

'宣告 
<ComVisibleAttribute(False)> _
Public Sub CopyTo ( _
    sourceIndex As Integer, _
    destination As Char(), _
    destinationIndex As Integer, _
    count As Integer _
)

'宣告 
<ComVisibleAttribute(False)> _
Public Sub CopyTo ( _
    sourceIndex As Integer, _
    destination As Char(), _
    destinationIndex As Integer, _
    count As Integer _
)

參數

sourceIndex

型別： System. Int32
此執行個體中的開始位置，為字元的複製來源。 索引以零起始。

destination

型別： System. Char[]
將複製其中字元的陣列。

destinationIndex

型別： System. Int32
destination 中開始複製字元的位置。 索引以零起始。

count

型別： System. Int32
要複製的字元數。

// This example demonstrates the CopyTo(Int32, Char[], Int32, Int32) method.





// Typically the destination array is small, preallocated, and global while


// the StringBuilder is large with programmatically defined data.


// However, for this example both the array and StringBuilder are small


// and the StringBuilder has predefined data.







using System;


using System.Text;





class Sample


{


    protected static char[] dest = new char[6];


    public static void Main()


    {


    StringBuilder src = new StringBuilder("abcdefghijklmnopqrstuvwxyz!");


    dest[1] = ')';


    dest[2] = ' ';





// Copy the source to the destination in 9 pieces, 3 characters per piece.





    Console.WriteLine("\nPiece) Data:");


    for(int ix = 0; ix < 9; ix++)


        {


        dest[0] = ix.ToString()[0];


        src.CopyTo(ix * 3, dest, 3, 3);


        Console.Write("    ");


        Console.WriteLine(dest);


        }


    }


}


/*


This example produces the following results:





Piece) Data:


    0) abc


    1) def


    2) ghi


    3) jkl


    4) mno


    5) pqr


    6) stu


    7) vwx


    8) yz!


*/