/// <summary>
/// �Ľ�ɫȨ����Ϣ
/// </summary>
/// <param name="roleInfo">��ɫȨ����Ϣ��ϣ��</param>
public static void Update(Hashtable roleInfo, string where)
{
DataBase db = new DataBase(); //ʵ����һ��Database��
db.Update("[Role]", roleInfo, where); //����Database���Update����������
}