SqlFileStream.ReadByte 方法

定义

从流中读取一个字节,并将流内的位置向前提升一个字节,或者如果已到达流结尾,则返回 -1。Reads a byte from the stream and advances the position within the stream by one byte, or returns -1 if at the end of the stream.

public:
 override int ReadByte();
public override int ReadByte ();
override this.ReadByte : unit -> int
Public Overrides Function ReadByte () As Integer

返回

Int32

强制转换为 Int32 的无符号字节,如果到达流的末尾,则为 -1。The unsigned byte cast to an Int32, or -1 if at the end of the stream.

例外

对象不支持数据读取。The object does not support reading of data.

注解

使用 CanRead 属性可确定当前实例是否支持读取。Use the CanRead property to determine whether the current instance supports reading.

适用于