/// <summary>
/// 构造函数
/// </summary>
/// <param name="speed">传输速率值（数值大于0时启用）</param>
/// <param name="unit">传输速率单位</param>
/// <param name="delay">传输间隔毫秒数</param>
public ModFtpTransSpeed(int speed, EFtpSpeedUnit unit, int delay)
{
Speed = speed;
Unit = unit;
Delay = delay;
}
/// <summary>
/// 构造函数（默认延时100MS）
/// </summary>
/// <param name="speed">传输速率值（数值大于0时启用）</param>
/// <param name="unit">传输速率单位</param>
public ModFtpTransSpeed(int speed, EFtpSpeedUnit unit)
{
Speed = speed;
Unit = unit;
}