人事管理系統（C語言實現）

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct
     {
          char score;             /*編號*/
          char name[10];          /*姓名*/
          char num[15];           /*號碼*/
          char email[20];         /*郵箱*/
          char age[8];            /*年齡*/
          char adds[20];          /*住址*/
     }Person;
Person pe[80];
int menu_select()
     {
         char c;
         do{
         system("cls");
         printf("\t\t *****通訊錄***** \n");
         printf("\t\t┌───────┐\n");
         printf("\t\t│ 1. 添加記錄  │\n");
         printf("\t\t│ 2. 顯示記錄  │\n");
         printf("\t\t│ 3. 刪除記錄  │\n");
         printf("\t\t│ 4. 查詢記錄  │\n");
         printf("\t\t│ 5. 修改記錄  │\n");
         printf("\t\t│ 6. 保存記錄  │\n");
         printf("\t\t│ 0. 退出程序  │\n");
         printf("\t\t└───────┘\n");
         printf("\t\t請您選擇(0-6):");
         c=getchar();
         }while(c<'0'||c>'6');
         return(c-'0');
     }
int Input(Person per[],int n){
int i=0;
char sign,x[10];
     while(sign!='n'&&sign!='N')
     {
         printf("\t編號:");
         scanf("\t%d",&per[n+i].score);
         printf("\t姓名:");
         scanf("\t%s",per[n+i].name);
         printf("\t年齡:");
         scanf("\t%s",per[n+i].age);
         printf("\t電話號碼:");
         scanf("\t%s",per[n+i].num);
         printf("\t通訊住址:");
         scanf("\t%s",per[n+i].adds);
         printf("\t電子郵箱:");
         scanf("\t%s",per[n+i].email);

         gets(x);
         printf("\n\t是否繼續添加?(Y/N)");
         scanf("\t%c",&sign);
         i++;
    }
    return(n+i);
}

void Display(Person per[],int n)
{
     int i;
     printf("----------------------------------------------------------------------\n");
/*格式*/
     printf("編號  姓名  年齡  電話號碼  通訊地址  電子郵箱\n");
     printf("----------------------------------------------------------------------\n");
     for(i=1;i<n+1;i++)
     {

     printf("%-5d%-8s%-6s%-13s%-15s%-15s\n",per[i-1].score,per[i-1].name,per[i-1].age,per[i-1].num,per[i-1].adds,per[i-1].email);
           if(i>1&&i%10==0)
           {
                 printf("\t-----------------------------------\n");

                  printf("\t");
                  system("pause");
                  printf("\t-----------------------------------\n");
           }
      }
printf("----------------------------------------------------------------------\n");
     system("pause");
}




int Delete_a_record(Person per[],int n)
{
     char s[20];
     int i=0,j;
     printf("\t請輸入想刪除記錄中的名字:");
     scanf("%s",s);
     while(strcmp(per[i].name,s)!=0&&i<n) i++;
     if(i==n)
     {
          printf("\t通訊錄中沒有此人!\n");
          return(n);
     }
     for(j=i;j<n-1;j++)
     {
          strcpy(per[j].num,per[j+1].num);
          strcpy(per[j].name,per[j+1].name);
          strcpy(per[j].age,per[j+1].age);
          strcpy(per[j].adds,per[j+1].adds);
          strcpy(per[j].email,per[j+1].email);
          per[j].score=per[j+1].score;
     }
     printf("\t\t\t已經成功刪除!\n");
     return(n-1);
}

void Query_a_record(Person per[],int n)
{


     int m;
printf("\t\n請選擇查詢方式:\n");
      printf("\t┌──────┐\n");
      printf("\t│1------姓名 │\n");
      printf("\t│2------電話 │\n");
      printf("\t│3------地址 │\n");
      printf("\t│4------返回 │\n");
      printf("\t└──────┘\n");
      printf("請選擇:");
      scanf("%d",&m);
      while(m!=1&&m!=2&&m!=3&&m!=4)
      {
          printf("輸入錯誤，請重新選擇:");
          scanf("%d",&m);
      }

      if(m==1)
      {
          char s[20];
          int i=0;
          printf("\t請輸入想查詢的姓名:");
          scanf("\t%s",s);
          while(strcmp(per[i].name,s)!=0&&i<n) i++;
          if(i==n)
          {
               printf("\t通訊錄中沒有此人!\n");
               return;
          }
          printf("\t此人編號: %d\n",per[i].score);
          printf("\t此人年齡: %s\n",per[i].age);
          printf("\t電話號碼: %s\n",per[i].num);
          printf("\t通訊地址: %s\n",per[i].adds);
          printf("\t電子郵箱: %s\n",per[i].email);
       }
if(m==2)
     {
          char s[20];
          int i=0;
printf("\t請輸入想查詢的電話:");
          scanf("\t%s",s);
while(strcmp(per[i].num,s)!=0&&i<n) i++;
if(i==n)
         {
             printf("\t通訊錄中沒有此人!\n");
             return;

         }
         printf("\t此人編號: %d\n",per[i].score);
         printf("\t此人姓名: %s\n",per[i].name);
         printf("\t此人年齡: %s\n",per[i].age);
         printf("\t通訊地址: %s\n",per[i].adds);
         printf("\t電子郵箱: %s\n",per[i].email);
     }

     if(m==3)
     {
          char s[20];
          int i=0;
          printf("\t請輸入想查詢的地址:");
          scanf("\t%s",s);
          while(strcmp(per[i].adds,s)!=0&&i<n) i++;
          if(i==n)
          {
               printf("\t通訊錄中沒有此人!\n");
               return;
          }
          printf("\t此人編號: %d\n",per[i].score);
          printf("\t此人姓名: %s\n",per[i].name);
          printf("\t此人年齡: %s\n",per[i].age);
          printf("\t電話號碼: %s\n",per[i].num);
          printf("\t電子郵箱: %s\n",per[i].email);
      }
}


void Change(Person per[],int n)
{
     char s[20];
     int i=0;
     printf("\t請輸入想修改的記錄中的名字:");

     scanf("%s",s);
     while(strcmp(per[i].name,s)!=0&&i<n) i++;
     if(i==n)
     {
          printf("\t通訊錄中沒有此人!\n");
          return;
     }
     printf("\t編號:");
     scanf("\t%d",&per[i].score);
     printf("\t姓名:");
     scanf("\t%s",per[i].name);
     printf("\t年齡:");
     scanf("\t%s",per[i].age);
     printf("\t電話號碼:");
     scanf("\t%s",per[i].num);
     printf("\t通訊住址:");
     scanf("\t%s",per[i].adds);
     printf("\t電子郵箱:");
     scanf("\t%s",per[i].email);
     printf("\t修改成功！");
}



void WritetoText(Person per[],int n)
{
     int i=0;
     FILE *fp;                                        /*定義文件指針*/
     char filename[20];                               /*定義文件名*/
     printf("\t保存到文件\n");                          /*輸入文件名*/
     printf("\t請輸入所保存的文件名:");
     scanf("\t%s",filename);
     if((fp=fopen(filename,"w"))==NULL)
     {
           printf("\t無法打開文件\n");
           system("pause");
           return;
     }
     fprintf(fp,"******************************************     通     訊     錄     ******************************************\n");
     fprintf(fp,"編號    姓名    年齡    電話    號碼    通訊地址電子郵箱\n");
     fprintf(fp,"------------------------------------------------------------------------------------------\n");
     while(i<n)
     {

     fprintf(fp,"%-3d\t%-6s\t%-3s\t%-13s\t%-20s\t%-20s\n",per[i].score,per[i].name,per[i].age,per[i].num,per[i].adds,per[i].email);
          i++;
     }
     fprintf(fp,"------------------------------------------------------------------------------------------\n");
     fprintf(fp,"***************************************共有%d條記錄****************************************\n",n);
     fclose(fp);                                                    /*關閉文件*/
     printf("保存成功!\n");
}

void main()                                                 /*主函數*/
{
     int n=0;
     for(;;)
     {
           switch(menu_select())
           {
           case 1:
           printf("\n\t添加記錄到通訊錄\n");                   /*添加記錄*/
           n=Input(pe,n);
           break;

           case 2:
           printf("\n\t\t\t 通訊錄記錄表\n");                         /*顯示記錄*/
           Display(pe,n);
           break;

           case 3:
           printf("\n\t從通訊錄中刪除記錄\n");
           n=Delete_a_record(pe,n);                           /*刪除記錄*/
           printf("\t");
           system("pause");
           break;

           case 4:
           printf("\n\t在通訊錄中查找記錄\n");
           Query_a_record(pe,n);                              /*查找記錄*/
           printf("\t");
           system("pause");
           break;

           case 5:
           printf("\n\t修改通訊錄中的記錄\n");
           Change(pe,n);                                            /*修改數據*/
           printf("\t");
           system("pause");
           break;

           case 6:
           printf("\n\t保存功能\n");
           WritetoText(pe,n);                                       /*保存數據*/
           printf("\t");
           system("pause");
           break;
           case 0:
           printf("\n\t\t謝謝使用，再見!\n");                        /*結束程序*/
           printf("\n\t\t");
           system("pause");
           exit(0);
           }
     }
}