PrintQueueStream.Read(Byte[], Int32, Int32) 方法
定义
从流中读取字节序列，并按所读取的字节数向前移动在流中的读/写位置。Reads a sequence of bytes from the stream and advances the read/write position in the stream by the number of bytes that were read.
public:
override int Read(cli::array <System::Byte> ^ buffer, int offset, int count);public override int Read (byte[] buffer, int offset, int count);[System.Security.SecurityCritical]
public override int Read (byte[] buffer, int offset, int count);override this.Read : byte[] * int * int -> int[<System.Security.SecurityCritical>]
override this.Read : byte[] * int * int -> intPublic Overrides Function Read (buffer As Byte(), offset As Integer, count As Integer) As Integer参数
- buffer
- Byte[]
字节数组。An array of bytes.
- offset
- Int32
缓冲区（想在此开始存储从流中读取的数据）中从零开始的字节偏移量。The zero-based byte offset in the buffer where you want to begin storing the data that is read from the stream.
- count
- Int32
要从流中读取的最大字节数。The maximum number of bytes to be read from the stream.
返回
一个 Int32，拥有读入缓冲区的字节总数。An Int32 that holds the total number of bytes that are read into the buffer.
- 属性
注解
如果很多字节当前不可用，则返回值可能小于请求的字节数;或者，如果读取/写入位置位于流的末尾，则该数字可以为零 (0) 。The return value can be less than the number of requested bytes if that many bytes are not currently available; or the number can be zero (0) if the read/write position is at the end of the stream.
此方法返回时， buffer 包含指定的字节数组， offset 并 (offset + count-) 1 之间的值替换为从源中读取的字节。When this method returns, buffer contains the specified byte array and the values between offset and (offset + count - 1) are replaced by the bytes that are read from the source.