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C language course set up salary management system (big homework)
2022-07-01 06:26:00 【Ordinary senior】
One 、 Design function ( The article is for reference only )
The general idea is to input functions , Output function , Modify the function , Delete function , Add function , Query function , A function used to count grades , There are also functions to save files , And menu functions , Finally, all of them are called in the main function
Two 、 Function display
3、 ... and 、 Mind mapping
Four 、 Program source code
#include<stdio.h>
#include<windows.h>
#include<string.h>
#include<conio.h>
#define N 100
struct clerk
{
int num; //ID Number
char name[20]; // full name
int jbgz; // Basic salary
int zwgz; // Job salary
int jt; // allowance
int yb; // Medical insurance
int gjj; // Accumulation fund
int total; // Total wage
}em[100];
void menu();
void input();
void save(int);
void display();
void del();
void add();
void search();
void search_num();
void search_name();
void modify();
void sta();
void start(); /* Define each function */
void start() // Start interface
{
system("cls");// Clear the screen
printf("\n\n\n\n\n\n");
printf("************************************************");
printf("********<<<<<< Welcome to the salary management system >>>>>>********");
printf("************************************************");
printf("\t\t\t *** Press any key to enter ***\n");
}
void menu() // Menu interface
{
system("cls");
system("color 1F"); // Set the background color blue The color of the text is white
printf("*** menu ***\n\n");
printf(">>>>>>>>>>>>>>>>>>>>>>>>> 1 Input \n\n");
printf(">>>>>>>>>>>>>>>>>>>>>>>>> 2 Show \n\n");
printf(">>>>>>>>>>>>>>>>>>>>>>>>> 3 lookup \n\n");
printf(">>>>>>>>>>>>>>>>>>>>>>>>> 4 Delete \n\n");
printf(">>>>>>>>>>>>>>>>>>>>>>>>> 5 add to \n\n");
printf(">>>>>>>>>>>>>>>>>>>>>>>>> 6 modify \n\n");
printf(">>>>>>>>>>>>>>>>>>>>>>>>> 7 Statistics \n\n");
printf(">>>>>>>>>>>>>>>>>>>>>>>>> 8 sign out \n\n");
printf(" explain ：* If used for the first time No data has been entered Please enter the data first \n * The entered data will be saved automatically \n * When the input function is selected again, the original data will be overwritten \n\n");
int n,button=0;
char a;
do
{
printf(" Functional selection (1--8):\n");
scanf("%d",&n);
if(n>=1&&n<=8)
{
button=1;
break;
}
else
{
button=0;
printf(" Your input is wrong , Please reselect !");
}
}while(button==0);
while(button==1)
{
switch(n)
{
case 1:input();break;
case 2:display();break;
case 3:search();break;
case 4:del();break;
case 5:add();break;
case 6:modify();break;
case 7:sta();break;
case 8:exit(0);break;
default :break;
}
getchar();
printf("\n");
printf(" Press any key to continue \n");
getch();
system("cls"); /* Clear the screen */
menu(); /* Call menu function */
printf(" Functional selection (1--8):\n");
scanf("%d",&n);
printf("\n");
}
}
void input() /* Input function */
{
int i,m;
system("cls");
printf(" Number of employees (1--100):\n");
scanf("%d",&m);
for (i=0;i<m;i++)
{
printf(" Please enter the employee number : ");
scanf("%d",&em[i].num);
printf(" Please enter a name : ");
scanf("%s",&em[i].name);
getchar();
printf(" Please enter the basic salary : ");
scanf("%d",&em[i].jbgz);
printf(" Please enter the job salary : ");
scanf("%d",&em[i].zwgz);
printf(" Please enter allowance : ");
scanf("%d",&em[i].jt);
printf(" Please enter medical insurance : ");
scanf("%d",&em[i].yb);
printf(" Please enter the provident fund : ");
scanf("%d",&em[i].gjj);
em[i].total=((em[i].jbgz)+(em[i].zwgz)+(em[i].jt)-(em[i].yb)-(em[i].gjj));// Calculate the total wage
printf("\n");
}
printf("\n Creation completed !\n");
save(m);// Keep the number of employees m
}
void save(int m) /* Save file function */
{
int i;
FILE*fp; // Statement fp Is a pointer , Used for pointing FILE Object of type
if ((fp=fopen("clerk_list","wb"))==NULL) // The open employee list file is empty
{
printf (" Open the failure \n");
exit(0);
}
for (i=0;i<m;i++) /* Output the information in memory to disk file */
if (fwrite(&em[i],sizeof(struct clerk),1,fp)!=1)// Write data block &em[i]： The output data is the address sizeof(struct clerk)： Get the length of a monomer 1： Number of data items fp： Target file pointer
printf(" File read / write error \n");
fclose(fp);// The last remaining data in the buffer is output to the disk file , And release the file pointer and associated buffer
}
int load() /* Import function int type */
{
FILE*fp;
int i=0;
if((fp=fopen("clerk_list","rb"))==NULL) /*“rb” Open a binary file , Only reading is allowed */
{
printf ("cannot open file\n");
exit(0);
}
else
{
do
{
fread(&em[i],sizeof(struct clerk),1,fp); // Read
i++;
}
while(feof(fp)==0); // Detect end of file on stream
}
fclose(fp);
return(i-1);// Number of returnees
}
void display() /* Browse functions */
{
int i,sum=0;
int m=load();
system("cls");
printf(" Employee number full name Basic salary Job salary allowance Medical insurance Accumulation fund Total wage \n");
for(i=0;i<m;i++) /*m Is the number of employees in the input section */
{
printf("\n %02d %-6s %-8d %-8d %-8d %-8d %-8d%-6d ",em[i].num,em[i].name,em[i].jbgz,em[i].zwgz,em[i].jt,em[i].yb,em[i].gjj,em[i].total);
sum+=em[i].total;// Calculate the sum of employees' total wages
}
printf("\n\n The average wage of employees ：%-8d \n",sum/m);
}
void del() /* Delete function */
{
int m=load();
int i,j,n,t,button;
char name[20];
printf("\n Original employee information :\n");
display(); // Display the employee information before deletion
printf("\n");
printf(" Delete by name :\n");
scanf("%s",name);
for(button=1,i=0;button&&i<m;i++)// In the main function button==1 Each function can be called only when
{
if(strcmp(em[i].name,name)==0)// Find an employee by employee name And call up its data
{
printf("\n The original record of this person is :\n");// Displays information about the selected employee
printf(" Employee number full name Basic salary Job salary allowance Medical insurance Accumulation fund Total wage \n");
printf("\n %02d %-6s %-8d %-8d %-8d %-8d %-8d %-8d ",em[i].num,em[i].name,em[i].jbgz,em[i].zwgz,em[i].jt,em[i].yb,em[i].gjj,em[i].total);
printf("\n Sure to delete Please press 1, If you don't want to delete, please press 0\n");
scanf("%d",&n);
if(n==1)
{
for(j=i;j<m-1;j++)// From i A start Assign the values of the members of the latter item to the corresponding members of the previous item Complete the second i Item Deletion
{
strcpy(em[j].name,em[j+1].name);
em[j].num=em[j+1].num;
em[j].jbgz=em[j+1].jbgz;
em[j].zwgz=em[j+1].zwgz;
em[j].jt=em[j+1].jt;
em[j].yb=em[j+1].yb;
em[j].gjj=em[j+1].gjj;
em[j].total=em[j+1].total;
}
button=0;
}
}
}
if(!button)//button==0 Indicates that the deletion is complete
m=m-1;// Reduce the total number of employees by one person
else
printf("\n Check no one !\n");
getch();
save(m); // Call the save function
display(); // Call the browse function
printf("\n To continue deleting, press 1, To not delete again, press 0\n");
scanf("%d",&t);
switch(t)
{
case 1:del();break;
case 0:break;
default :break;
}
}
void add()/* Add function */
{
FILE*fp;
int n;
int count=0;
int i;
int m=load();
printf("\n Original employee information :\n");
display();
printf("\n");
fp=fopen("clerk_list","a"); /* Opened as an appended file clerk_list File additional information */
printf(" Please enter the number of employees you want to increase :\n");// Determine the number of employees to join n
scanf("%d",&n);
for (i=m;i<(m+n);i++)// add to n Employee information
{
printf("\n Please enter the information of the new employee :\n");
printf(" Please enter the employee number : ");
scanf("%d",&em[i].num);
printf(" Please enter a name : ");
scanf("%s",em[i].name);
printf(" Please enter the basic salary : ");
scanf("\t%d",&em[i].jbgz);
printf(" Please enter the job salary : ");
scanf("%d",&em[i].zwgz);
printf(" Please enter allowance : ");
scanf("%d",&em[i].jt);
printf(" Please enter medical insurance : ");
scanf("\t%d",&em[i].yb);
printf(" Please enter the provident fund : ");
scanf("%d",&em[i].gjj);
em[i].total=( em[i].jbgz+ em[i].zwgz + em[i].jt- em[i].yb- em[i].gjj);// Calculate the total salary of the employee
printf("\n");
count=count+1;
}
printf("\n Add success , Please press any key \n");
getch();
m=m+count;// Add the number of new employees to the total number of employees
save(m);
display();// Display the added information
fclose(fp);
}
void search()/* Query function */
{
int t,button;
system("cls");// Clear the screen
do
{
printf("\n Press 1 Query by job No \n\n Press 2 Search by name \n\n Press 3 Return to main menu \n");
scanf("%d",&t);
if(t>=1&&t<=3)
{
button=1;
break;
}
else
{
button=0;
printf(" Input error , Please re-enter \n");
}
}while(button==0);// Go back to Query options
while(button==1)
{
switch(t)// Select query method
{
case 1:printf(" Query by job No \n");search_num();break;
case 2:printf(" Search by name \n");search_name();break;
case 3:menu();break;
default:break;
}
}
}
void search_num()// Query by employee No
{
int a;
int i,t;
int m=load();
printf(" Please enter the employee number you want to find :\n");
scanf("%d",&a);
for(i=0;i<m;i++)
if(a==em[i].num)
{
printf(" Employee number full name Basic salary Job salary allowance Medical insurance Accumulation fund Total wage \n");
printf("\n %02d %-6s %-8d %-8d %-8d %-8d %-8d %-8d ",em[i].num,em[i].name,em[i].jbgz,em[i].zwgz,em[i].jt,em[i].yb,em[i].gjj,em[i].total);
break;
}
if(i==m)
printf("\n I'm sorry , Check no one \n");
printf("\n");
printf(" To return the query function, press 1, To continue to query the employee number, please press 2\n");
scanf("%d",&t);
switch(t)
{
case 1:search();break;
case 2: break;
default:break;
}
}
void search_name()
{
char name[30];
int i,t;
int m=load();
printf(" Please enter a name :\n");
scanf("%s",name);
for(i=0;i<m;i++)
if(strcmp(em[i].name,name)==0) // String comparison
{
printf("\n Already found , It is recorded as :\n");
printf(" Employee number full name Basic salary Job salary allowance Medical insurance Accumulation fund Total wage \n");
printf("\n %02d %-6s %-8d %-8d %-8d %-8d %-8d %-8d ",em[i].num,em[i].name,em[i].jbgz,em[i].zwgz,em[i].jt,em[i].yb,em[i].gjj,em[i].total);
}
if(i==m)
printf("\n I'm sorry , Check no one \n");
printf("\n To return to the query menu, press 1, To continue querying your name, press 2\n");
scanf("%d",&t);
switch(t)
{
case 1:search();break;
case 2:break;
default :break;
}
}
void modify() /* Modify the function */
{
int num;
char name[20];
int jbgz;
int zwgz;
int jt;
int yb;
int gjj;
int b,c,i,n,t,button;
int m=load();
system("cls");
printf("\n Original employee information :\n");
display();
printf("\n");
printf(" Please enter the name of the employee to be modified :\n");
scanf("%s",name);
for(button=1,i=0;button&&i<m;i++)
{
if(strcmp(em[i].name,name)==0)
{
printf("\n The original record of this person is :\n");
printf(" Employee number full name Basic salary Job salary allowance Medical insurance Accumulation fund Total wage \n");
printf("\n %02d %-6s %-8d %-8d %-8d %-8d %-8d %-8d ",em[i].num,em[i].name,em[i].jbgz,em[i].zwgz,em[i].jt,em[i].yb,em[i].gjj,em[i].total);
printf("\n determine Press 1 ; If not, please press 0\n");
scanf("%d",&n);
if(n==1)
{
printf("\n Options that need to be modified \n 1. Employee number 2. full name 3. Basic salary 4. Job salary 5. allowance 6. Medical insurance 7. Accumulation fund 8. Back to the top \n");
printf(" Please select the serial number 1-8:\n");
scanf("%d",&c);
if(c>8||c<1)
printf("\n Wrong choice , Please reselect !\n");
}
button=0;
}
}
if(button==1)
printf("\n Check no one \n");
do
{
switch(c) /* Because when you find the first i When an employee ,for After the statement i Self added 1, Therefore, the following should assign the changed information to the second i-1 personal */
{
case 1: printf(" The employee number is changed to : ");
scanf("%d",&num);
em[i-1].num=num;
break;
case 2: printf(" Name changed to : ");
scanf("%s",name);
strcpy(em[i-1].name,name);
break;
case 3: printf(" The basic salary is changed to : ");
getchar();
scanf("%d",&jbgz);
em[i-1].jbgz=jbgz;
em[i-1].total=( em[i-1].jbgz+ em[i-1].zwgz + em[i-1].jt- em[i-1].yb- em[i-1].gjj);
break;
case 4: printf(" The position salary is changed to : ");
scanf("%d",&zwgz);
em[i-1].zwgz=zwgz;
em[i-1].total=( em[i-1].jbgz+ em[i-1].zwgz + em[i-1].jt- em[i-1].yb- em[i-1].gjj);
break;
case 5: printf(" Change to allowance : ");
scanf("%d",&jt);
em[i-1].jt=jt;
em[i-1].total=( em[i-1].jbgz+ em[i-1].zwgz + em[i-1].jt- em[i-1].yb- em[i-1].gjj);
break;
case 6: printf(" Medical insurance is changed to : ");
scanf("%d",&yb);
em[i-1].yb=yb;
em[i-1].total=( em[i-1].jbgz+ em[i-1].zwgz + em[i-1].jt- em[i-1].yb- em[i-1].gjj);
break;
case 7: printf(" The provident fund is changed to : ");
scanf("%d",&gjj);
em[i-1].gjj=gjj;
em[i-1].total=( em[i-1].jbgz+ em[i-1].zwgz + em[i-1].jt- em[i-1].yb- em[i-1].gjj);
break;
case 8: modify();
break;
}
printf("\n");
printf("\n\n Confirm modification Please press 1 ; Revise Please press 2: \n");
scanf("%d",&b);
}while(b==2);
printf("\n");
save(m);
display();
printf("\n Press 1 Continue to modify , If you don't want to modify it again, please press 0\n");
scanf("%d",&t);
switch(t)
{
case 1:modify();break;
case 0:break;
default :break;
}
}
void sta()// Statistical function
{
int i,sum=0,suma=0,sumb=0,sumc=0,sumd=0,sume=0;
int m=load();
system("cls");
printf(" Employee number full name Basic salary Job salary allowance Medical insurance Accumulation fund Total wage \n");
for(i=0;i<m;i++) /*m Is the number of employees in the input section */
{
printf("\n %02d %-6s %-8d %-8d %-8d %-8d %-8d%-8d ",em[i].num,em[i].name,em[i].jbgz,em[i].zwgz,em[i].jt,em[i].yb,em[i].gjj,em[i].total);
sum+=em[i].total;// Calculate the sum of employees' total wages
suma+=em[i].jbgz;
sumb+=em[i].zwgz;
sumc+=em[i].jt;
sumd+=em[i].yb;
sume+=em[i].gjj;
}
printf("\n\n Average wages of employees ： %-8d %-8d %-8d %-8d %-8d%-8d \n",suma/m,sumb/m,sumc/m,sumd/m,sume/m,sum/m);
}
int main()// The main function
{
start();
getch();
menu();
}
You can pay attention to it, and it will be updated continuously in the future 0.0（ Thank you first ）
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