-
#include<fstream.h>
-
#include<iostream.h>
-
#include<conio.h>
-
#include<stdio.h>
-
#include<iomanip.h>
-
#include<ctype.h>
-
#include<stdlib.h>
-
#include<time.h>
-
#include<string.h>
-
-
/* XAY DUNG CLASS NGAY SINH */
-
-
class
ngaysinh
-
{
-
protected
:
-
int
ngay
;
-
int
thang
;
-
int
nam
;
-
public
:
-
ngaysinh
(
int
ngay,
int
thang,
int
nam
)
;
-
~ngaysinh
(
)
;
-
void
nhapns
(
)
;
-
void
hienns
(
)
;
-
}
;
-
-
ngaysinh
::
ngaysinh
(
int
ngay,
int
thang,
int
nam
)
-
{
-
ngay
=
ngay
;
-
thang
=
thang
;
-
nam
=
nam
;
-
}
-
ngaysinh
::
~ngaysinh
(
)
-
{
-
ngay
=
thang
=
nam
=
0
;
-
}
-
-
void
ngaysinh
::
nhapns
(
)
-
{
-
char
ch
;
-
cout
<<
“
\n
nhap ngay, thang, nam sinh(dd/mm/yyyy) “
;
-
cin
>>
ngay
>>
ch
>>
thang
>>
ch
>>
nam
;
ngaychthangchnam
-
}
;
-
-
void
ngaysinh
::
hienns
(
)
-
{
-
cout
<<
endl
;
endl
-
cout
<<
ngay
<<
“/”
<<
thang
<<
“/”
<<
nam
<<
endl
;
ngaythangnamendl
-
}
;
-
-
/* XAY DUNG CLASS NGUOI */
-
-
class
nguoi
:
public
ngaysinh
-
{
-
protected
:
-
int
masv
;
-
char
ten
[
30
]
;
-
ngaysinh ns
;
-
int
gt
;
-
public
:
-
void
nhapn
(
)
;
-
void
inn
(
)
;
-
}
;
-
-
void
nguoi
::
nhapn
(
)
-
{
-
cout
<<
“
\n
Nhap ma so sinh vien:”
;
cin
>>
masv
;
masv
-
cout
<<
“
\n
Nhap ho va ten sinh vien:”
;
-
cin
.
get
(
ten,
30
)
;
ten,
-
cin
.
ignore
(
1
)
;
-
ns.
nhapns
(
)
;
-
cout
<<
“
\n
Nhap gioi tinh ( Nam 1 / Nu 0 ) :”
;
cin
>>
gt
;
gt
-
}
-
-
void
nguoi
::
inn
(
)
-
{
-
cout
<<
“
\n
Ma so sinh vien:”
<<
masv
;
masv
-
cout
<<
“
\n
Ho va ten:”
<<
ten
;
ten
-
cout
<<
“
\n
Ngay sinh:”
;
ns.
hienns
(
)
;
ns.
-
cout
<<
“
\n
Gioi tinh:”
;
-
if
(
gt
==
1
)
-
else
-
}
-
-
/* XAY DUNG CLASS DIEM */
-
-
class
diem
:
public
nguoi
-
{
-
private
:
-
float
dtb
;
-
float
drl
;
-
float
dcong
;
-
public
:
-
diem
(
)
{
}
-
void
nhapd
(
)
;
-
void
ind
(
)
;
-
void
sapxep
(
)
;
-
void
timkiemdiem_dtb
(
float
diemtb
)
;
-
void
timkiemdiem_masv
(
int
msv
)
;
-
void
timkiemdiem_ten
(
char
tensv
[
]
)
;
-
void
ghi_file
(
)
;
-
void
doc_file
(
int
sod
)
;
-
int
diem
::
dem
(
)
;
-
float
laydtb
(
)
;
-
}
;
-
-
//HAM NHAP
-
-
void
diem
::
nhapd
(
)
-
{
-
nhapn
(
)
;
-
cout
<<
“
\n
Nhap diem trung binh:”
;
cin
>>
dtb
;
dtb
-
cout
<<
“
\n
Nhap diem ren luyen:”
;
cin
>>
drl
;
drl
-
cout
<<
“
\n
Nhap diem cong:”
;
cin
>>
dcong
;
dcong
-
}
-
-
//HAM IN
-
-
void
diem
::
ind
(
)
-
{
-
inn
(
)
;
-
cout
<<
“
\n
Diem TB:”
<<
dtb
;
dtb
-
cout
<<
“
\n
Diem ren luyen:”
<<
drl
;
drl
-
cout
<<
“
\n
Diem cong:”
<<
dcong
;
dcong
-
}
-
-
//HAM GHI FILE
-
-
void
diem
::
ghi_file
(
)
-
{
-
fstream
f
;
-
f.
open
(
“DIEM.TXT”
, ios
::
binary
|
ios
::
app
|
ios
::
out
)
;
-
f.
write
(
(
char
*
)
this
,
sizeof
(
*
this
)
)
;
-
f.
close
(
)
;
-
}
-
-
//HAM DOC FILE
-
-
void
diem
::
doc_file
(
int
sod
)
-
{
-
fstream
f
;
-
f.
open
(
“DIEM.TXT”
,ios
::
binary
|
ios
::
in
)
;
-
f.
seekg
(
sod
*
sizeof
(
diem
)
)
;
-
f.
read
(
(
char
*
)
this
,
sizeof
(
*
this
)
)
;
-
f.
close
(
)
;
-
}
-
-
//HAM DEM
-
-
int
diem
::
dem
(
)
-
{
-
ifstream
f
;
-
f.
open
(
“DIEM.TXT”
, ios
::
binary
)
;
-
f.
seekg
(
0
, ios
::
end
)
;
-
if
(
!
f
)
-
return
0
;
-
else
-
return
(
int
)
f.
tellg
(
)
/
sizeof
(
diem
)
;
-
}
-
-
//TIM KIEM DIEM THEO MA SV
-
-
void
diem
::
timkiemdiem_masv
(
int
msv
)
-
{
-
diem d
;
-
int
so
=
diem
::
dem
(
)
;
-
for
(
int
i
=
0
;
i
<
so
;
i
++
)
-
{
-
d.
doc_file
(
i
)
;
-
if
(
masv
==
msv
)
-
d.
ind
(
)
;
-
}
-
}
-
-
//TIM KIEM DIEM THEO TEN
-
-
void
diem
::
timkiemdiem_ten
(
char
tensv
[
]
)
-
{
-
diem d
;
-
int
so
=
diem
::
dem
(
)
;
-
for
(
int
i
=
0
;
i
<
so
;
i
++
)
-
{
-
d.
doc_file
(
i
)
;
-
if
(
ten
==
tensv
)
-
d.
ind
(
)
;
-
}
-
}
-
-
//TIM KIEM THEO DTB
-
-
void
diem
::
timkiemdiem_dtb
(
float
diemtb
)
-
{
-
diem d
;
-
int
so
=
diem
::
dem
(
)
;
-
for
(
int
i
=
0
;
i
<
so
;
i
++
)
-
{
-
d.
doc_file
(
i
)
;
-
if
(
dtb
==
diemtb
)
-
d.
ind
(
)
;
-
}
-
}
-
-
/* XAY DUNG CLASS SINH VIEN */
-
-
class
sinhvien
:
public
nguoi
-
{
-
private
:
-
char
qq
[
50
]
;
-
char
cs
[
20
]
;
-
public
:
-
sinhvien
(
)
{
}
-
void
nhapsv
(
)
;
-
void
insv
(
)
;
-
void
dssv
(
)
;
-
void
ghi_file
(
)
;
-
void
doc_file
(
int
sosv
)
;
-
int
sinhvien
::
dem
(
)
;
-
void
timkiem_masv
(
int
msv
)
;
-
void
timkiem_ten
(
char
ten
[
]
)
;
-
}
;
-
-
//HAM NHAP
-
-
void
sinhvien
::
nhapsv
(
)
-
{
-
-
nhapn
(
)
;
-
cout
<<
“
\n
Nhap que quan:”
;
-
cin
.
get
(
qq,
50
)
;
qq,
-
cin
.
ignore
(
1
)
;
-
cout
<<
“
\n
Nhap dien chinh sach:”
;
-
cin
.
get
(
cs,
20
)
;
cs,
-
cin
.
ignore
(
1
)
;
-
}
-
-
//HAM IN
-
-
void
sinhvien
::
insv
(
)
-
{
-
inn
(
)
;
-
cout
<<
“
\n
Que quan:”
<<
qq
;
qq
-
cout
<<
“
\n
Dien chinh sach:”
<<
cs
;
cs
-
}
-
-
//GHI FILE
-
-
void
sinhvien
::
ghi_file
(
)
-
{
-
fstream
f
;
-
f.
open
(
“SINHVIEN.TXT”
, ios
::
binary
|
ios
::
app
|
ios
::
out
)
;
-
f.
write
(
(
char
*
)
this
,
sizeof
(
*
this
)
)
;
-
f.
close
(
)
;
-
}
-
-
//DOC FILE
-
-
void
sinhvien
::
doc_file
(
int
sosv
)
-
{
-
fstream
f
;
-
f.
open
(
“SINHVIEN.TXT”
,ios
::
binary
|
ios
::
in
)
;
-
f.
seekg
(
sosv
*
sizeof
(
sinhvien
)
)
;
-
f.
read
(
(
char
*
)
this
,
sizeof
(
*
this
)
)
;
-
f.
close
(
)
;
-
}
-
-
//DEM SO SINH VIEN
-
-
int
sinhvien
::
dem
(
)
-
{
-
ifstream
f
;
-
f.
open
(
“SINHVIEN.TXT”
, ios
::
binary
)
;
-
f.
seekg
(
0
, ios
::
end
)
;
-
if
(
!
f
)
-
return
0
;
-
else
-
return
(
int
)
f.
tellg
(
)
/
sizeof
(
sinhvien
)
;
-
}
-
-
//HIEN THI DANH SACH SINH VIEN
-
-
void
sinhvien
::
dssv
(
)
-
{
-
sinhvien sv
;
-
cout
<<
“
\n
Co tat ca “
<<
sinhvien
::
dem
(
)
<<
” sinhvien”
;
sinhvien
-
for
(
int
i
=
0
;
i
<
sv.
dem
(
)
;
i
++
)
-
{
-
sv.
doc_file
(
i
)
;
-
sv.
insv
(
)
;
-
}
-
}
-
-
//TIM KIEM THEO MA SO SV
-
-
void
sinhvien
::
timkiem_masv
(
int
msv
)
-
{
-
sinhvien sv
;
-
cout
<<
“
\n
Sinh vien co ma so sinh vien “
<<
msv
<<
” la:
\n
“
;
msv
-
int
sosv
=
sinhvien
::
dem
(
)
;
-
for
(
int
i
=
0
;
i
<
sosv
;
i
++
)
-
{
-
sv.
doc_file
(
i
)
;
-
if
(
masv
==
msv
)
-
sv.
insv
(
)
;
-
}
-
-
}
-
-
//TIM KIEM THEO TEN
-
-
void
sinhvien
::
timkiem_ten
(
char
tensv
[
]
)
-
{
-
sinhvien sv
;
-
cout
<<
“
\n
Nhung sinh vien ten “
<<
tensv
<<
” la:
\n
“
;
tensv
-
int
sosv
=
sinhvien
::
dem
(
)
;
-
for
(
int
i
=
0
;
i
<
sosv
;
i
++
)
-
{
-
sv.
doc_file
(
i
)
;
-
if
(
ten
==
tensv
)
-
sv.
insv
(
)
;
-
}
-
}
-
-
//MAIN MENU
-
-
void
MM
(
sinhvien
&
sv,diem
&
d
)
-
{
-
cout
<<
“
\n
* HE THONG QUAN LY SINH VIEN *”
;
-
cout
<<
“
\n
* QUAN LY SINH VIEN *”
;
-
cout
<<
“
\n
* 1. Nhap vao sinh vien *”
;
-
cout
<<
“
\n
* 2. Tim kiem theo ma so sinh vien *”
;
-
cout
<<
“
\n
* 3. Tim kiem theo ten sinh vien *”
;
-
cout
<<
“
\n
* 4. Danh sach sinh vien *”
;
-
cout
<<
“
\n
* 5. Xoa *”
;
-
cout
<<
“
\n
* QUAN LY DIEM *”
;
-
cout
<<
“
\n
* 6. Nhap diem cua sinh vien *”
;
-
cout
<<
“
\n
* 7. Tim kiem theo ma so sinh vien *”
;
-
cout
<<
“
\n
* 8. Tim kiem theo ten *”
;
-
cout
<<
“
\n
* 9. Tim kiem theo diem trung binh *”
;
-
cout
<<
“
\n
* 10. Danh sach SV theo thu tu giam dan cua DTB *”
;
-
cout
<<
“
\n
* QUAN LY HOC BONG *”
;
-
cout
<<
“
\n
* 12. Danh sach hoc bong *”
;
-
cout
<<
“
\n
* 13. Gioi thieu *”
;
-
cout
<<
“
\n
* 14. Thoat chuong trinh *”
;
-
cout
<<
“
\n
\n
Lua chon cong viec tuong ung “
;
-
int
n
;
-
cin
>>
n
;
-
switch
(
n
)
-
{
-
case
(
1
)
:
-
{
-
sv.
nhapsv
(
)
;
-
MM
(
sv,d
)
;
-
break
;
-
}
-
case
(
2
)
:
-
{
-
int
ma
;
-
cout
<<
“
\n
Ma so sinh vien can tim: “
;
-
cin
>>
ma
;
ma
-
sv.
timkiem_masv
(
ma
)
;
-
MM
(
sv,d
)
;
-
break
;
-
}
-
case
(
3
)
:
-
{
-
char
t
[
30
]
;
-
cout
<<
“
\n
Ten sinh vien can tim: “
;
-
fflush
(
stdin
)
;
-
cin
.
get
(
t,
30
)
;
t,
-
sv.
timkiem_ten
(
t
)
;
-
MM
(
sv,d
)
;
-
break
;
-
}
-
case
(
4
)
:
-
{
-
sv.
dssv
(
)
;
-
MM
(
sv,d
)
;
-
break
;
-
}
-
/* case (5) :
-
{
-
cv.nhap();
-
MM(ld,cv);
-
break;
-
} */
-
case
(
6
)
:
-
{
-
d.
nhapd
(
)
;
-
MM
(
sv,d
)
;
-
break
;
-
}
-
case
(
7
)
:
-
{
-
int
ma
;
-
cout
<<
“
\n
Ma so sinh vien can tim: “
;
-
cin
>>
ma
;
ma
-
d.
timkiemdiem_masv
(
ma
)
;
-
MM
(
sv,d
)
;
-
break
;
-
}
-
case
(
8
)
:
-
{
-
char
t
[
30
]
;
-
cout
<<
“
\n
Ten sinh vien can tim: “
;
-
fflush
(
stdin
)
;
-
cin
.
get
(
t,
30
)
;
t,
-
d.
timkiemdiem_ten
(
t
)
;
-
MM
(
sv,d
)
;
-
break
;
-
}
-
case
(
9
)
:
-
{
-
float
d1
;
-
cout
<<
“
\n
DTB can tim: “
;
-
cin
>>
d1
;
d1
-
d.
timkiemdiem_dtb
(
d1
)
;
-
MM
(
sv,d
)
;
-
break
;
-
}
-
/* case(10) :
-
{
-
-
}
-
case(11) :
-
{
-
-
}
-
case (12):
-
{
-
-
} */
-
case
(
13
)
:
-
{
-
<<
“
\n
————————–“
-
<<
“—————————-“
-
<<
“
\n
—————–“
;
-
MM
(
sv,d
)
;
-
break
;
-
}
-
case
(
14
)
:
-
{
-
exit
(
1
)
;
-
break
;
-
}
-
-
default
:
cout
<<
“Gia tri nhap vao khong thich hop”
;
-
}
-
}
-
-
//CHUONG TRINH CHINH
-
-
void
main
(
)
-
{
-
clrscr
(
)
;
-
sinhvien sv
(
)
;
-
diem d
(
)
;
-
MM
(
sv,d
)
;
-
}
