/// <summary>
/// 执行SQL返回第一行第一列
/// <para>一般用于添加</para>
/// </summary>
/// <param name="t_sql">sql查询语句</param>
/// <param name="DBParameters">sql查询参数</param>
/// <returns>返回第一行的第一列</returns>
public virtual object SQLScalar(string t_sql, List <Connection.DBParameters> DBParameters = null)
{
return(DB_Connection.ExecuteSQLScalar(t_sql, DBParameters));
}