/// <summary>
/// 单例模式====双层互锁
/// </summary>
/// <returns></returns>
public static TongYong_SanDian GetObject()
{
if (yqsd == null)
{
lock (obj)
{
if (yqsd == null)
{
yqsd = new TongYong_SanDian();
}
}
}
return(yqsd);
}
public SanDianAbs CreateYouXiSanDian(string brand)
{
switch (brand)
{
case "tongyongsandian":
youcr1 = TongYong_SanDian.GetObject();
break;
case "jiuyouzhuce":
youcr1 = JiuYou_SanDian.GetObject();
break;
default:
break;
}
return(youcr1);
}