Comprehensive evaluation system for students

#include <stdio.h>
#include <stdlib.h>
#define N 100

----------------------------------------function Declaration----------------------------------------
void Init ();
Char welcome ();
void Inputinfo ();
void view ();
void Xiugai ();
void Deleteinfo ();
void paiming1 (struct student_info student[]);
void Paiming2 (struct student_info student[]);
void Viewall ();
void Clean ();
void Paimingview ();
void exit ();
struct Student_info input ();
void Sortinfo (struct student_info student[]);
void ViewInfo (struct student_info *sp);
void Savestruct (struct student_info *sp,int size,int N,char filename[20]);
void Loadstruct (struct student_info *sp,int size,int N,char filename[20]);
void Saveint (int *p,int size,int N,char filename[20]);
void Loadint (int *p,int size,int N,char filename[20]);
int numexist (struct student_info student[],int num);

---------------------------------Define student information structure----------------------------------------

struct STUDENT_INFO
{
int num;//No.
Char name[6];//name
Char sex[5];//Sex
Char adress[20];//Home Address
Char tel[10];//Telephone
int chinese,math,english,huping,pingde,jiaoping,paiming1,paiming2;
Evaluation of Chinese Mathematics English for mutual evaluation of moral character
Double ave,zhongping;
Average synthesis

Each student's information is: study number, name, gender, home address, telephone number, language, mathematics, foreign language, the results of the single subjects,
Average test scores, exam rankings, peer-to-peer scoring, moral performance, classroom teacher rating, comprehensive assessment score, comprehensive assessment ranking.
The average scores of examinations, students ' mutual scores, moral results and teachers ' scores respectively accounted for the overall score of 60%,10%,10%,20%.
};

---------------------------------define the global structure body data----------------------------------------
struct Student_info student[n];
int counter,pm;

//----------------------------------------------main function----------------------------------------
Void main ()
{
Char select;
Init (); Call the initialization function
while (1)
{
Select=welcome ();
Switch (Select)
{
case ' 1 ': System ("CLS"), Inputinfo (); break;//Option 1: Enter student information
Case ' 2 ': System ("CLS"); view (); Break Option 2: Browse Student information
Case ' 3 ': System ("CLS"), Xiugai (); break;//Option 3: Modify student information
Case ' 4 ': System ("CLS");D Eleteinfo (); Option 4: Delete Student information
case ' 5 ': System ("CLS"); paiming1 (student);p aiming2 (student); Pm=1;getchar ();
GetChar (); System ("CLS"); break;//Option 5: Student Information ranking
case ' 6 ': System ("CLS"); Viewall (); break; Option 6: Browse all student Information
Case ' 7 ': System ("CLS"), Clean (), break;//option 7: Clear All information
Case ' 8 ': System ("CLS"); Paimingview (); break;//option 8: Query rank
case ' 0 ': System ("CLS"); exit (), break;//Option 9: Exit
}
}
}

----------------------------------------initialization function----------------------------------------
void Init ()
{
FILE *FP;
Fp=fopen ("Counter.dat", "RB");//Open the Count variable counter file

if (fp!=null)//load into counter
{
Fclose (FP);
Loadint (&counter,sizeof (counter), 1, "Counter.dat");
}
Else
{
Fp=fopen ("Counter.dat", "WB");//If there is no counter file, create one, counter is initially 0.
Fclose (FP);
counter=0;
}

if (counter!=0)//Load student data
Loadstruct (student,sizeof (struct student_info), counter, "Student_info.dat");
}

//----------------------------------------Welcome function----------------------------------------
Char welcome ()
{
Char Select;
while (1)
{
System ("CLS");
printf ("\t\t Welcome to use Student information management system \ n");
printf ("\ n");
printf ("1. Enter student information \ n");
printf ("2. viewing student information \ n");
printf ("3. Modify student information \ n");
printf ("4. Delete Student information \ n");
printf ("5. Ranking student results \ n");
printf ("6. View all student information \ n \ nthe");
printf ("7. Erase all data \ n \ nthe");
printf ("8. Query rank \ n");
printf ("0. exit \ n \ nthe");
printf ("Enter the corresponding function number:");
Select=getchar ();
if (select== ' 1 ' | | select== ' 2 ' | | select== ' 3 ' | | select== ' 4 ' | | select== ' 5 ' | | select== ' 6 ' | | select== ' 7 ' | | select== ' 8 ' | | select== ' 0 ')
return select;
System ("CLS");
Continue;
}
}

-------------------------------------1. Enter Student information----------------------------------------
void Inputinfo ()
{
int i,n;
printf ("Information on how many students need to be entered:");
scanf ("%d", &n);
System ("CLS");
for (i=1;i<=n;i++)
{
Student[counter]=input ();
counter++;
}
pm=0;
Sortinfo (student);
Savestruct (student,sizeof (struct student_info), counter, "Student_info.dat");
Saveint (&counter,sizeof (counter), 1, "Counter.dat");
}

-------------------------------------2. Explore Student Information----------------------------------------
void View ()
{
int i,num;
printf ("Please enter the number of student information to be visited:");
scanf ("%d", &num);
GetChar ();
if ((I=numexist (student,num)) ==-1)
{
printf ("The number does not exist, press ENTER to return ...");
GetChar ();
System ("CLS");
Return
}
ViewInfo (&student[i]);
printf ("\ n press ENTER to return ...");
GetChar ();
System ("CLS");
Return
}

-------------------------------------3. Modify Student Information----------------------------------------
void Xiugai ()
{
int i,num;
Char Yn,select;
printf ("Please enter the number of student information to be modified:");
scanf ("%d", &num);
GetChar ();
if ((I=numexist (student,num)) ==-1)
{
printf ("The number does not exist, press ENTER to return ...");
GetChar ();
System ("CLS");
Return
}
ViewInfo (&student[i]);
printf ("Do you want to modify? (y/n): ");
scanf ("%c", &yn);
GetChar ();
if (YN! = ' y ' && YN! = ' y ')
{
printf ("Modify Cancel.");
GetChar ();
System ("CLS");
Return
}
System ("CLS");
printf ("1. School number \ n");
printf ("2. sex \ n");
printf ("3. Home address \ n");
printf ("4. Contact phone \ n");
printf ("5. Language score \ n");
printf ("6. Math results \ n");
printf ("7. Foreign language score \ n");
printf ("8. Peer rating \ n");
printf ("9. Moral result \ n");
printf ("0. Instructor Teacher rating \ n");
scanf ("%c", &select);
Switch (SELECT)
{
Case ' 1 ':p rintf ("revision number:"); scanf ("%d", &student[i].num); break;
Case ' 2 ':p rintf ("Modified Gender:"); scanf ("%s", &student[i].sex); break;
Case ' 3 ':p rintf ("Modified Home Address:"); scanf ("%s", &student[i].adress); break;
Case ' 4 ':p rintf ("Modify Contact Number:"); scanf ("%s", &student[i].tel); break;
Case ' 5 ':p rintf ("Revised language score:"); scanf ("%d", &student[i].chinese); break;
Case ' 6 ':p rintf ("Revise Math score:"); scanf ("%d", &student[i].math); break;
Case ' 7 ':p rintf ("Modify foreign Language Score:"); scanf ("%d", &student[i].english); break;
Case ' 8 ':p rintf ("Revise classmates to score:"); scanf ("%d", &student[i].huping); break;
Case ' 9 ':p rintf ("revision of character score:"); scanf ("%d", &student[i].pingde); break;
Case ' 0 ':p rintf ("Modified Instructor Rating:"); scanf ("%d", &student[i].jiaoping); break;
}
Sortinfo (student);
Savestruct (student,sizeof (struct student_info), counter, "Student_info.dat");
pm=0;
GetChar ();
printf ("Modify complete ...");
GetChar ();
System ("CLS");
}

-------------------------------------4. Delete Student Information----------------------------------------
void Deleteinfo ()
{

int i,j,num;
Char YN;
printf ("Please enter the student informatics number to be deleted:");
scanf ("%d", &num);
GetChar ();
if ((I=numexist (student,num)) ==-1)
{
printf ("No such number, press ENTER return ...");
GetChar ();
System ("CLS");
Return
}

ViewInfo (&student[i]);
printf ("\ n confirm deletion (y/n):");
scanf ("%c", &yn);
GetChar ();
if (yn!= ' y ' && yn!= ' y ')
{
printf ("Remove Cancel ...");

}
Else
{
for (j=i;j<counter-1;j++)
STUDENT[J]=STUDENT[J+1];
counter--;
pm=0;
Savestruct (student,sizeof (struct student_info), counter, "Student_info.dat");
Saveint (&counter,sizeof (counter), counter, "Counter.dat");
printf ("Delete Complete ...");
}

GetChar ();
System ("CLS");
}

-------------------------------------average score and overall score------------------------------------
void paiming1 (struct student_info student[])
{
struct Student_info *p[n],*temp;
int i,j;
for (i=0;i<counter;i++)
p[i]=&student[i];
for (i=0;i<counter-1;i++)
for (j=i+1;j<counter;j++)
{
if (P[i]->ave < P[j]->ave)
{
Temp=p[i];
P[I]=P[J];
P[j]=temp;
}
}
for (i=0;i<counter;i++)
p[i]->paiming1=i+1;
printf ("Average sub-ranking completed ... \ n");

}

Ranking of comprehensive assessments
void Paiming2 (struct student_info student[])
{
struct Student_info *p[n],*temp;
int i,j;
for (i=0;i<counter;i++)
p[i]=&student[i];
for (i=0;i<counter-1;i++)
for (j=i+1;j<counter;j++)
{
if (P[i]->zhongping < p[j]->zhongping)
{
Temp=p[i];
P[I]=P[J];
P[j]=temp;
}
}
for (i=0;i<counter;i++)
p[i]->paiming2=i+1;
printf ("Comprehensive evaluation sub-ranking completed ... \ n");
}

----------------------------------6. View all student Information----------------------------------------
void Viewall ()
{
int i;
for (i=0;i<counter;i++)
{
ViewInfo (&student[i]);
printf ("\ n");
}
GetChar ();
printf ("Enter return ...");
GetChar ();
System ("CLS");
}

-------------------------------------7. Clear All information----------------------------------------
void Clean ()
{
counter=0;
Saveint (&counter,sizeof (counter), 1, "Counter.dat");
printf ("Purge complete ...");
GetChar ();
GetChar ();
System ("CLS");
}

----------------------------------------8. Query ranking----------------------------------------
void Paimingview ()
{
int i,num;
printf ("Enter the number to query:");
scanf ("%d", &num);
GetChar ();
I=numexist (Student,num);
if (i==-1)
{
printf ("The school number does not exist ...");
GetChar ();
Return
}
if (pm==0)
{
printf ("Please score first ...");
GetChar ();
Return
}
printf ("%s average score%d\n", student[i].name,student[i].paiming1);
printf ("%s's comprehensive evaluation score%d\n", student[i].name,student[i].paiming2);
printf ("Press ENTER to return ...");
GetChar ();
Return
}

----------------------------------------9. Exit----------------------------------------
void exit ()
{

printf ("Thank you for using!\n");
Exit (0);
}

----------------------------------------Input Information function----------------------------------------
struct Student_info input ()
{
struct Student_info stu,*sp;
Char YN;
sp=&stu;
while (1)
{
while (1)
{
printf ("Enter the school Number:");
scanf ("%d", &sp->num);
GetChar ();
if (Numexist (student,sp->num)!=-1)
{
printf ("The number already exists, please re-enter ...");
GetChar ();
System ("CLS");
Continue
}
Break
}
printf ("Enter name:");
Gets (Sp->name);
printf ("Input Gender:");
Gets (Sp->sex);
printf ("Input home Address:");
Gets (sp->adress);
printf ("Input Contact Number:");
Gets (Sp->tel);
printf ("\ n next entry result \ n");
printf ("Language:");
scanf ("%d", &sp->chinese);
printf ("Mathematics:");
scanf ("%d", &sp->math);
printf ("English:");
scanf ("%d", &sp->english);
Sp->ave= (Sp->chinese+sp->math+sp->english)/3.0;
printf ("Peer reviews:");
scanf ("%d", &sp->huping);
printf ("Moral Score:");
scanf ("%d", &sp->pingde);
printf ("Teacher Evaluation:");
scanf ("%d", &sp->jiaoping);
GetChar ();
Sp->zhongping= (sp->ave*0.6+sp->huping*0.1+sp->pingde*0.1+sp->jiaoping*0.2);
printf ("Input complete, confirm the information is correct (y/n)");
Yn=getchar ();
GetChar ();
if (yn== ' Y ' | | yn== ' y ')
Break
Else
{
printf ("Press ENTER to re-enter information.") ");
GetChar ();
System ("CLS");
Continue
}
}
System ("CLS");
return Stu;
}

----------------------------------------sort function----------------------------------------
void Sortinfo (struct student_info student[])
{
int i,j;
struct Student_info temp;
for (i=0;i<counter-1;i++)
for (j=i+1;j<=counter-1;j++)
{
if (student[i].num<student[j].num)
{
Temp=student[i];
STUDENT[I]=STUDENT[J];
Student[j]=temp;
}
}
}

----------------------------------------Show Student Information----------------------------------------
void ViewInfo (struct student_info *sp)
{
printf ("School number \ t name \ t sex \ t home address \ t Contact phone \ n");
printf ("%d\t%s\t%s\t%s\t\t%s\n", Sp->num,sp->name,sp->sex,sp->adress,sp->tel);
printf ("language \ t math \ t English \ t mutual evaluation \ t character \ t teaching evaluation \ n");
printf ("%d\t%d\t%d\t%d\t%d\t%d\t\n", sp->chinese,sp->math,sp->english,sp->huping,sp->pingde,sp- >jiaoping);
printf ("Average division \ t comprehensive sub \ n");
printf ("%.2f\t%.2f\n", sp->ave,sp->zhongping);
if (pm==1)
{
printf ("average rank \ t Comprehensive Assessment sub rank \ n");
printf ("%d\t\t%d\n", sp->paiming1,sp->paiming2);
}
}

-----------------------------------information to disk (structure)----------------------------------------
void Savestruct (struct student_info *sp,int size,int N,char filename[20])
{
FILE *FP;
Fp=fopen (filename, "WB");
Fwrite (SP,SIZE,N,FP);
Fclose (FP);
}

-----------------------------------read information (struct)----------------------------------------
void Loadstruct (struct student_info *sp,int size,int N,char filename[20])
{
FILE *FP;
Fp=fopen (filename, "RB");
Fread (SP,SIZE,N,FP);
Fclose (FP);

}

-------------------------------------information (integer)----------------------------------------
void Saveint (int *p,int size,int N,char filename[20])
{
FILE *FP;
Fp=fopen (filename, "WB");
Fwrite (P,SIZE,N,FP);
Fclose (FP);
}

-------------------------------------Read information (integral type)----------------------------------------
void Loadint (int *p,int size,int N,char filename[20])
{
FILE *FP;
Fp=fopen (filename, "RB");
Fread (P,SIZE,N,FP);
Fclose (FP);
}

----------------------------------------Search Number----------------------------------------
int numexist (struct student_info student[],int num)
{
int i;
for (i=0;i<counter;i++)
{
if (student[i].num==num)
return i;
}
return-1;
}

Comprehensive evaluation system for students