/// <summary>查询是否存在相关的记录.</summary>
/// <param name="id">标识</param>
/// <returns>布尔值</returns>
public bool IsExist(string id)
{
return(provider.IsExist(id));
}
/// <summary>查询是否存在相关的记录.</summary>
/// <param name="id">标识</param>
/// <returns>布尔值</returns>
public bool IsExist(string id)
{
return(provider.IsExist(id));
}