/// <summary>
/// 从Position偏移位置读取8个字节
/// 返回其Int64表示类型
/// </summary>
/// <exception cref="ArgumentOutOfRangeException"></exception>
/// <returns></returns>
public long ReadInt64()
{
var value = ByteConverter.ToInt64(this._buffer, this.Position, this.Endian);
this.Position = this.Position + sizeof(long);
return(value);
}
/// <summary>
/// 读取指定位置8个字节，返回其Int64表示类型
/// </summary>
/// <param name="index">字节所在索引</param>
/// <param name="littleEndian">是否低位在前</param>
/// <returns></returns>
public long ToInt64(int index, bool littleEndian)
{
return(ByteConverter.ToInt64(this.Source, index, littleEndian));
}
/// <summary>
/// 从流中读取8个字节，并将流内的位置向前推进8个字节，
/// 返回其Int64表示类型
/// </summary>
/// <exception cref="ArgumentOutOfRangeException"></exception>
/// <returns></returns>
public long ReadInt64()
{
var range = this.ReadByteRange(sizeof(long));
return(ByteConverter.ToInt64(range.Buffer, range.Offset, this.Endian));
}
/// <summary>
/// 读取指定位置8个字节，返回其Int64表示类型
/// </summary>
/// <param name="index">字节所在索引</param>
/// <param name="endian">高低位</param>
/// <returns></returns>
public long ToInt64(int index, Endians endian)
{
return(ByteConverter.ToInt64(this.Source, index, endian));
}
