C语言职工信息管理系统源码

#include <stdio.h> 
#include <stdlib.h> 
#include <string.h> 
#include <conio.h> 
struct worker 
{ 
 char ID[20];//工号 
 char name[20];//姓名 
 char sex[5];//性别 
 char born[20];//生日 
 char edu[20];//学历 
 char position[20];//职务 
 char wage[10];//工资 
 char address[100];//住址 
 char tel[15];//电话 
}work[1000]; 
int n ; 
 
//文件读写模块 
void read()//读入数据 
{ 
 FILE *fp; 
 int i = 0; 
 if( (fp = fopen("d:\\date.txt","r")) == NULL ) 
 { 
  printf("请在D盘根目录下新建一个文本文件，文件名为date\n\n\n"); 
  system("pause"); 
  system("cls"); 
  return ; 
 } 
 fscanf(fp,"%d\n",&n); 
 while(i < n) 
 { 
  fscanf(fp,"%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",work[i].ID,work[i].name,work[i].sex,work[i].born,work[i].edu,work[i].position,work[i].wage,work[i].address,work[i].tel); 
  i ++; 
 } 
 fclose(fp); 
} 
void write()//写入数据 
{ 
 FILE *fp; 
 int i = 0; 
 if( (fp = fopen("d:\\date.txt","w")) == NULL ) 
 { 
  printf("无法打开文件！\n"); 
  return ; 
 } 
 fprintf(fp,"%d\n",n); 
 while(i < n) 
 { 
  fprintf(fp,"%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n",work[i].ID,work[i].name,work[i].sex,work[i].born,work[i].edu,work[i].position,work[i].wage,work[i].address,work[i].tel); 
  i ++; 
 } 
 fclose(fp); 
} 
 
 
//输入模块 
void input()// 从键盘输入 
{ 
 int i; 
 int flag;//标记工号是否已存在 
 char c;//指令Y?N 
 read();//输入数据前先将文件中原有的数据读入 
 do 
 { 
  flag = 0; 
  printf("\t\t请输入职工的工号:        \n\t\t"); 
  scanf("%s",work[n].ID); 
  for(i = 0 ; i < n ; i ++) 
  { 
   if(strcmp(work[i].ID,work[n].ID) == 0) 
   { 
    flag = 1; 
    break; 
   } 
  } 
  if(flag) 
  { 
   printf("该工号已存在！\n\n"); 
   printf("\t\t是否继续输入?(Y/N): "); 
   scanf("%*c%c",&c); 
   if(c == 'N' || c == 'n') break; 
   continue; 
  } 
  printf("\t\t请输入职工的姓名:        \n\t\t"); 
  scanf("%s",work[n].name); 
  printf("\t\t请输入职工的性别:        \n\t\t"); 
  scanf("%s",work[n].sex); 
  printf("\t\t请输入职工的出生年月:       \n\t\t"); 
  scanf("%s",work[n].born); 
  printf("\t\t请输入职工的学历:        \n\t\t"); 
  scanf("%s",work[n].edu); 
  printf("\t\t请输入职工的职务:        \n\t\t"); 
  scanf("%s",work[n].position); 
  printf("\t\t请输入职工的工资:        \n\t\t"); 
  scanf("%s",work[n].wage); 
  printf("\t\t请输入职工的住址:        \n\t\t"); 
  scanf("%s",work[n].address); 
  printf("\t\t请输入职工的电话:        \n\t\t"); 
  scanf("%s",work[n].tel); 
  printf("\t\t是否继续输入?(Y/N): "); 
  scanf("%*c%c",&c); 
  n ++; 
 }while( c != 'N' && c != 'n'); 
 write(); 
 printf("\n\n数据已保存！\n\n"); 
} 
 
 
//显示模块 
void output_inf(int id) 
{ 
 printf("\t\t 工号: %s\n",work[id].ID); 
 printf("\t\t 姓名: %s\n",work[id].name); 
 printf("\t\t 性别: %s\n",work[id].sex); 
 printf("\t\t出生年月: %s\n",work[id].born); 
 printf("\t\t 学历: %s\n",work[id].edu); 
 printf("\t\t 职务: %s\n",work[id].position); 
 printf("\t\t 工资: %s\n",work[id].wage); 
 printf("\t\t 住址: %s\n",work[id].address); 
 printf("\t\t 电话: %s\n",work[id].tel); 
 printf("\n\n\n"); 
} 
void show()//显示所有职工信息 
{ 
 int i; 
 read(); 
 if(n == 0) printf("无记录!\n\n"); 
 else 
  for(i = 0 ; i < n ; i ++) 
  { 
   output_inf(i); 
  } 
} 
 
 
//查询模块 
void que()//查询信息 
{ 
 char num; 
 int flag,i; 
 char q_id[20] ;//查询工号 
 char q_name[20] ;//查询姓名 
 char q_edu[20] ; //查询学历 
 char q_position[20] ;//查询职位 
 char c;//指令Y?N 
 read();//打开程序后，要查询以前的数据，要先读入 
 while(1) 
 { 
  system("cls"); 
  printf("\t\t******************查询********************\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*    1.按工号查询    *\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*    2.按姓名查询    *\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*    3.按学历查询    *\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*    4.按职务查询    *\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*  输入其他任意键退出本模块   *\n"); 
  printf("\t\t******************************************\n"); 
  printf("\t\t请输入指令(1-4):"); 
  scanf("%*c%c",&num); 
  if(num < '1' || num > '4') 
  { 
   printf("错误指令！\n\n"); 
   system("pause"); 
   continue; 
  } 
  system("cls"); 
  flag = 0;//用来标记职工信息是否存在 
  if(num == '1')//按工号查询 
  { 
   printf("\t\t请输入您要查询职工的工号："); 
   scanf("%s",q_id); 
   for(i = 0 ; i < n ;i ++) 
   { 
    if( strcmp(work[i].ID,q_id) == 0) 
    { 
     output_inf(i); 
     flag = 1;//标记 
     break; 
    } 
   } 
  } 
  else if(num == '2')//按姓名查询 
  { 
   printf("\t\t请输入您要查询职工的姓名："); 
   scanf("%s",q_name); 
   for(i = 0 ; i < n ;i ++) 
   { 
    if( strcmp(work[i].name,q_name) == 0) 
    { 
     output_inf(i); 
     flag = 1;//标记 
    } 
   } 
  } 
  else if(num == '3')//按学历查询 
  { 
   printf("\t\t请输入您要查询职工的学历："); 
 
   scanf("%s",q_edu); 
   for(i = 0 ; i < n ;i ++) 
   { 
    if( strcmp(work[i].edu,q_edu) == 0) 
    { 
     output_inf(i); 
     flag = 1;//标记 
    } 
   } 
  } 
  else if(num == '4')//按职务查询 
  { 
   printf("\t\t请输入您要查询职工的职务："); 
   scanf("%s",q_position); 
   for(i = 0 ; i < n ;i ++) 
   { 
    if( strcmp(work[i].position,q_position) == 0) 
    { 
     output_inf(i); 
     flag = 1;//标记 
    } 
   } 
  } 
  if(!flag)//判断是否有该职工信息 
  { 
   printf("\n\n无该职工信息!\n\n"); 
  } 
  printf("\n\n是否继续查询(Y/N):"); 
 
  scanf("%*c%c",&c); 
  if(c == 'N' || c == 'n') break; 
 } 
} 
 
//修改信息模块 
void mod()//修改职工信息 
{ 
 char change_ID[20];//需修改的职工的工号 
 int number;//职工信息在数据中的位置 
 char num;//指令 
 char message[100];//修改的信息 
 char c;//指令Y?N 
 int flag; 
 int i; 
 read(); 
 while(1) 
 { 
  flag = 0; 
  system("cls"); 
  printf("请输入需修改的职工的工号："); 
  scanf("%s",change_ID); 
  for(i = 0 ; i < n ; i ++) 
  { 
   if( strcmp(work[i].ID,change_ID) == 0 ) 
   { 
    number = i; 
    flag = 1; 
    break; 
   } 
  } 
  if(!flag) 
  { 
   printf("\n\n无此员工信息！！\n\n"); 
   printf("\n\n是否继续修改(Y/N):"); 
   scanf("%*c%c",&c); 
   if(c == 'N' || c == 'n') break; 
   continue; 
  } 
  printf("\n\n\t\t******************修改********************\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*    1.修改姓名     *\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*    2.修改学历     *\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*    3.修改职务     *\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*    4.修改工资     *\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*    5.修改住址     *\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*    6.修改电话     *\n"); 
  printf("\t\t*          *\n"); 
  printf("\t\t*  输入其他任意键退出本模块   *\n"); 
  printf("\t\t******************************************\n"); 
  printf("\t\t请输入指令(1-6):"); 
  scanf("%*c%c",&num); 
  if(num < '1' || num > '6') 
  { 
   printf("错误指令！\n\n"); 
   system("pause"); 
   continue; 
  } 
  system("cls"); 
  printf("请输入修改后的信息："); 
  scanf("%s",message); 
  switch(num) 
  { 
   case '1' : strcpy(work[number].name,message); break; 
   case '2' : strcpy(work[number].edu,message); break; 
   case '3' : strcpy(work[number].position,message); break; 
   case '4' : strcpy(work[number].wage,message); break; 
   case '5' : strcpy(work[number].address,message); break; 
   case '6' : strcpy(work[number].tel,message); break; 
  } 
  system("cls"); 
  printf("\n\n是否继续修改(Y/N):"); 
  scanf("%*c%c",&c); 
  if(c == 'N' || c == 'n') break; 
 } 
 write(); 
} 
 
 
//删除信息模块 
void del()//删除职工信息 
{ 
 char delete_ID[20];//删除职工工号 
 int i,j; 
 int flag;//标记是否有该职工信息 
 char c; 
 read(); 
 while(1) 
 { 
  system("cls"); 
  flag = 0; 
  printf("请输入需删除职工信息的工号："); 
  scanf("%s",delete_ID); 
  for(i = 0 ; i < n ; i ++) 
  { 
   if( strcmp(work[i].ID,delete_ID) == 0) 
   { 
    n --; 
    flag = 1; 
    for(j = i ; j < n ; j ++) 
    { 
     work[j] =work[j + 1]; 
    } 
    break; 
   } 
  } 
  if(!flag) printf("\n\n无此员工信息！\n\n"); 
  else printf("\n\n删除成功！\n"); 
  printf("\n\n是否继续删除(Y/N):"); 
  scanf("%*c%c",&c); 
  if(c == 'N' || c == 'n') break; 
 } 
 write(); 
} 
 
//菜单模块 
void menu()//菜单 
{ 
 printf("\t\t************职工信息管理系统菜单**********\n"); 
 printf("\t\t*          *\n"); 
 printf("\t\t*    1.录入职工信息   *\n"); 
 printf("\t\t*          *\n"); 
 printf("\t\t*    2.显示职工信息   *\n"); 
 printf("\t\t*          *\n"); 
 printf("\t\t*    3.查询职工信息   *\n"); 
 printf("\t\t*          *\n"); 
 printf("\t\t*    4.修改职工信息   *\n"); 
 printf("\t\t*          *\n"); 
 printf("\t\t*    5.删除职工信息   *\n"); 
 printf("\t\t*          *\n"); 
 printf("\t\t*    0.退出     *\n"); 
 printf("\t\t*          *\n"); 
 printf("\t\t******************************************\n"); 
 printf("\t\t请输入指令(0-5): "); 
} 
 
 
int main() 
{ 
 int num; 
 n = 0; 
 system("color 0B"); 
 while(1) 
 { 
  menu(); 
  scanf("%d",&num); 
  system("cls"); 
  switch(num) 
  { 
   case 1: input(); break; 
   case 2: show(); break; 
   case 3: que(); break; 
   case 4: mod(); break; 
   case 5: del(); break; 
   case 0: printf("谢谢使用！\n\n"); return 0; 
   default :printf("\n--->无效的指令!\n\n\n"); 
  } 
  system("pause"); 
  system("cls"); 
 } 
}