/// <summary>
 /// 获取本逻辑类单例
 /// </summary>
 /// <returns></returns>
 public static Col_Order00Bll GetInstence()
 {
     if (_Col_Order00Bll == null)
     {
         _Col_Order00Bll = new Col_Order00Bll();
     }
     return(_Col_Order00Bll);
 }