public BoMon_Exception(ExepEnum num) { Number = num; }
public GV_Exception(ExepEnum num) { Number = num; }
public NCKHDHT_Exception(ExepEnum num) { Number = num; }
public Khoa_Exception(ExepEnum num) { Number = num; }
public DXNCKH_Exception(ExepEnum num) { Number = num; }