static public IoCardBase GetIntance(IoCardType ioCardType)
{
if (ioCardBase == null)
{
lock (objLock)
{
if (ioCardBase == null)
{
ioCardBase = CreateAxis(ioCardType);
}
}
}
return(ioCardBase);
}
/// <summary>
/// 创建一个IO卡
/// </summary>
/// <param name="ioCardType">IO卡类型</param>
private static IoCardBase CreateAxis(IoCardType ioCardType)
{
switch (ioCardType)
{
case IoCardType.IOC0640:
return(new IOC0640Card());
break;
default:
throw new Exception("没有此类型!!!");
break;
}
}
