简单的学校计费系统C源代码.zip

#include<stdio.h> #include<string.h> #include<stdlib.h> #include<conio.h> #include<windows.h> struct dat { int d,m; }; int clscanf(); struct student { struct dat dt; float f,fine,tot,adv,due; char n[50]; int r,c; } stud,s; struct teacher { struct dat dt; char n[50]; float sal,adv,tot; int id,no; } tech,t; int chkdat(int,int);// for checking date void addrec(int);//for adding records void modrec(int);//for modifying records void searchrec(int);//for searching records void delrec(int);//for deleting records void salary(int);//for the calculation of salary of teacher and staff FILE *fs,*ft;//file declaration int mm,dd;//mm=month, dd=day void ext();//for exiting void main(void) { int i,j,k; for(i=0; i<80; i++) { printf("\xdb"); } printf("\n"); for(i=0; i<80; i++) { printf("\xdb"); } printf(" \t____________________________________________\n"); printf("\t| |\n"); printf("\t| WELCOME TO SCHOOL BILLING SYSTEM |\n"); printf("\t| |\n"); printf("\t| |\n"); printf(" \t____________________________________________\n"); printf("\n\tPLEASE ENTER ANY KEY TO CONTINUE"); for(i=0; i<5; i++) { printf("."); Sleep(500); } getch(); system("cls"); printf("\n"); for(i=0; i<80; i++) { printf("\xdb"); } printf("\n\n\t** WELCOME SCHOOL BILLING SYSTEM **\n\n\n"); for(i=0; i<80; i++) { printf("\xdb"); } printf("\nPLEASE ENTER ANY KEY TO START\n"); for(i=0; i<5; i++) { printf("."); Sleep(500); } fflush(stdin); getch(); system("cls"); printf("\n\t\tPLEASE ENTER CURRENT DATE\nmm dd\n "); scanf("%d%d",&mm,&dd); mm=chkdat(mm,dd); start(); } void start() { int i,j;//j is for selection of account type system("cls"); printf("\n\t\tPLEASE ENTER ACCOUNT TYPE"); printf("\n\t\t1:: Student"); printf("\n\t\t2:: Teachers and Staffs"); printf("\n\t\t3:: Exit"); printf("\n\t\tAccount type choice "); fflush(stdin); scanf("%d",&j); switch (j) { case 3: ext(); case 1: { system("cls"); printf("\n\t\tPLEASE ENTER THE CHOICE"); printf("\n\t\t1:: Add record"); printf("\n\t\t2:: Search record"); printf("\n\t\t3:: Modify record"); printf("\n\t\t4:: Delete record"); printf("\n\t\t5:: Calculate fee"); printf("\n\t\t6:: Exit"); printf("\n\n Enter choice "); fflush(stdin); scanf("%d",&i); switch (i) { case 1: addrec(j);//function call start();//function call case 2: searchrec(j); start(); case 3: modrec(j); start(); case 4: delrec(j); start(); case 5: fee(mm); start(); case 6: ext(); default : { printf("\n\n\tInvalid entry!!"); printf("\n\nTo Account Type\n\n\t"); system("pause"); start(); } } } case 2: { system("cls"); printf("\n\t\tPLEASE ENTER THE CHOICE"); printf("\n\t\t1:: Add record"); printf("\n\t\t2:: Search record"); printf("\n\t\t3:: Modify record"); printf("\n\t\t4:: Delete record"); printf("\n\t\t5:: Calculate Salary"); printf("\n\t\t6:: Exit"); printf("\n\n Enter choice "); fflush(stdin); scanf("%d",&i); switch (i) { case 1: addrec(j); start(); case 2: searchrec(j); start(); case 3: modrec(j); start(); case 4: delrec(j); case 5: salary(mm); start(); case 6: ext(); default : { printf("\n\n\tInvalid entry!!"); printf("\n\nTo Account Type\n\n\t"); system("pause"); start(); } } } default : { printf("\n\n\tInvalid entry!!"); printf("\n\nTo Account Type\n\n\t"); system("pause"); start(); } } } void addrec(int j) { int dif,cdat,ddat,month=0;//cdat=month till which fee is cleared float ff;//used in calculatin of fee of different class char c='y'; system("cls"); printf("\n\t******************************************************************"); printf("\n\t *************************** "); printf("\n\t********************* ADD RECORD *******************"); printf("\n\t *************************** "); printf("\n\t******************************************************************"); if (j==1) { while(c=='y'||c=='Y') { int a=1; printf("\n\nEnter the name of student: "); fflush(stdin); scanf("%[^\n]",stud.n); printf("\nEnter the class: "); fflush(stdin); stud.c=clscanf(); printf("\nEnter the Roll No.:"); fflush(stdin); scanf("%2d",&stud.r); printf("\nEnter month and day till which fee is paid:"); fflush(stdin); scanf("%2d%2d",&cdat,&ddat); cdat=chkdat(cdat,ddat); stud.dt.m=cdat; ff=stud.c/10.0; stud.f=1000*(1+ff);//fee of different classes dif=mm-stud.dt.m;//months of fee left to be paid stud.fine=(dif*stud.f)*1/100; stud.due=(dif)*stud.f;//fees left to be paid if(dif==1) { stud.tot=stud.f; stud.fine=0; } else { stud.tot=stud.fine+stud.due; }//for calculation of total fee fs=fopen("student","ab+");//opening a binary file in apend mode fwrite(&stud,sizeof(stud),1,fs); fclose(fs); printf("\n\nDo you want to continue with the process(press y or Y"); fflush(stdin); c=getch(); } getch(); } if (j==2) { while(c=='y'||c=='Y') { int a=1; printf("\n\nEnter name of teacher/staff:" ); fflush(stdin); scanf("%[^\n]",tech.n); printf("\nEnter teacher/staff id: "); fflush(stdin); scanf("%d",&tech.id); printf("\nEnter number of class/shift per month:: "); scanf("%d",&tech.no); fflush(stdin); printf("\nEnter month and day till which salary is paid::"); scanf("%d %d",&tech.dt.m,&tech.dt.d); cdat=chkdat(cdat,ddat); tech.dt.m=cdat; tech.sal=tech.no*500; tech.adv=(tech.dt.m-mm-1)*tech.sal; if (tech.adv<0) tech.adv=0; tech.tot=tech.sal; ft=fopen("teacher","ab+"); fwrite(&tech,sizeof(tech),1,ft); fclose(ft); printf("\n\nDo you want to continue with the process(press y or Y"); fflush(stdin); c=getch(); } fflush(stdin); printf("\n\n"); system("pause"); } } void searchrec(int j) { char name[50],namet[50]; int a=1,choice; char c='y'; if (j==1) { while(c=='y'||c=='Y')