C#:实现CRC16校验算法
/// <summary>
///计算CRC16.
/// </summary>
/// <param name="frame">The frame.</param>
/// <param name="n0">The n0.</param>
/// <param name="n1">The n1.</param>
/// <param name="highFirst">设置为 <c>true</c> 高位在前.</param>
/// <returns>System.Byte[].</returns>