MemoryStream.CopyTo(Stream, Int32) 方法

定义

使用指定的缓冲区大小,从当前内存流中读取字节并将其写入到另一流中。Reads the bytes from the current memory stream and writes them to another stream, using a specified buffer size.

public:
 override void CopyTo(System::IO::Stream ^ destination, int bufferSize);
public override void CopyTo (System.IO.Stream destination, int bufferSize);
override this.CopyTo : System.IO.Stream * int -> unit
Public Overrides Sub CopyTo (destination As Stream, bufferSize As Integer)

参数

destination
Stream

当前内存流的内容将复制到的流。The stream to which the contents of the current memory stream will be copied.

bufferSize
Int32

缓冲区的大小。The size of the buffer. 此值必须大于零。This value must be greater than zero. 默认大小为 81920。The default size is 81920.

异常

destinationnulldestination is null.

bufferSize 不是正数。bufferSize is not a positive number.

基础内存流或 destination 流已关闭。Either the underlying memory stream or the destination stream is closed.

基础内存流不可读取。The underlying memory stream is unreadable.

- 或 --or-

destination 流不可写入。The destination stream is unwritable.

适用于