workin.c

八、简单的职工管理系统 1.问题描述 对单位的职工进行管理

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

enum Sex{ male, female };    /* 性别 */
enum Education{ high, junior, college, master, doctor};  /* 学历 */

struct Date       /* 日期 */
{
     int year;
     int month;
     int day;
};

struct Info
{
     char num[5];          /* 职工号 */
     char name[8];         /* 姓名 */
     enum Sex sex;          /* 性别 */
     struct Date birthday;  /* 出生年月*/
     enum Education education;    /* 学历  */
     char duty[8];         /* 职务  */
     double wage;           /* 工资  */
     char addr[12];         /* 地址  */
     char phone[8];        /* 电话  */
};

void menu();


int load(char * a)              /*计算参数所指定的文件中的记录的个数的函数*/
{
   struct Info info;
   FILE *fp;
   int i;

   if((fp=fopen(a,"rb"))==NULL)
   {
      printf("\nCannot open file\n");
      getch();
      return 0;
   }
   for(i=0;!feof(fp);i++)
      fread(&info,sizeof(struct Info),1,fp);
   
   fclose(fp);

   return(i-1);                /*返回记录个数*/
}

void append()        /* 信息添加函数 */
{
      struct Info info;
      FILE * fp;
      int flag = 1;
      char temp[10];

      if((fp=fopen("inform.txt","ab")) == NULL)
      {
          if((fp=fopen("inform.txt","wb"))==NULL)
          {
            printf("\tCan not open the inform file!");
            getch();
            exit(1);
          }
       }
       
       
      do
      {
        printf("\tnum:"); 
        gets(info.num);
        
        printf("\tname:");
        gets(info.name);
        
        printf("\tsex:"); 
        gets(temp);
        if(!strcmp(temp,"female"))
            info.sex=female;
        else  
            info.sex=male;
        	
        printf("\tbirthday(yyyy/mm/dd):");
        scanf("%d/%d/%d",&info.birthday.year,&info.birthday.month,&info.birthday.day);
        getchar();
        
        printf("\teducation:");
        gets(temp);
        if(!strcmp(temp,"doctor"))   info.education=doctor;
            else if(!strcmp(temp,"master"))    info.education=master;
            else if(!strcmp(temp,"college"))   info.education=college;
            else if(!strcmp(temp,"junior"))    info.education=junior;
            else info.education=high;
            
        printf("\tduty:"); 
        gets(info.duty);
        
        printf("\twage:"); 
        gets(temp); 
        info.wage=atof(temp);
         
        printf("\taddress:");
        gets(info.addr);
        
        printf("\tphone:");
        gets(info.phone);

        if(fwrite(&info, sizeof(info), 1, fp) != 1)
            {
                printf("\nfile input wrong!\n");
                getch();
                exit(1);
        }

            printf("Any more ?      \t1).Yes\t2).No:  [ ]\b\b");
            scanf("%d",&flag); 
            getchar();
            
      }while(flag == 1);
      
      fclose(fp);
      menu();
}


void display()     /* 职工信息显示函数 */
{
      int amount;      /* 信息文件中的记录总数 */
      struct Info info;
      FILE * fp;
      int total = 0;
      char temp[10], temp1[10];
      
      amount=load("inform.txt");
      if((fp=fopen("inform.txt","rb")) == NULL)
      {
             printf("\tCan not open the inform file!");
             getch();
             exit(1);
      }
      
      printf("%-5s%-8s%-8s%-11s%-10s%-8s%-8s%-12s%-8s\n","nun","name","sex","birthday","education","duty","wage","address","phone");
      
      for( ;total<amount; )
      {
            if(fread(&info, sizeof(info), 1, fp) != 1)
           {
                printf("\nfile read wrong!\n");
                getch();
                exit(1);
           }
            
           total++;
           
           if(info.sex==male) 
                strcpy(temp,"male");
           else 
                strcpy(temp,"female");
           
           if(info.education==doctor)       strcpy(temp1,"doctor");
           else if(info.education==master)  strcpy(temp1,"master");
           else if(info.education==college) strcpy(temp1,"college");
           else if(info.education==junior)   strcpy(temp1,"junior");
           else strcpy(temp1,"high");
           
           printf("%-5s%-8s%-8s%-4d/%-2d/%-2d%-10s%-8s%-8.2lf%-12s%-8s\n",info.num,info.name,temp,info.birthday.year,info.birthday.month,info.birthday.day,temp1,info.duty,info.wage,info.addr,info.phone);
           if((total != 0) && (total%10 ==0))
           {
                printf("\n\n\tPress any key to continue......");
                getch();
                puts("\n\n");
                printf("%-5s%-8s%-8s%-11s%-10s%-8s%-8s%-12s%-8s\n","nun","name","sex ","birthday","education","duty","wage","address","phone");
           }
      }
      
      fclose(fp);
      printf("\n\n\tThere are %d record in all!",total);
      getch();
      menu();
  
}


void search()        /* 信息查询函数 */
{
      int amount;        /* 信息文件中的记录总数 */
      int con=0;         /* 已处理的文件记录总数 */
      struct Info info;
      FILE * fp;
      int flag=-1, flag1=-1;    /* flag为1按工资查询，flag为2按学历查询；flag1为0表等于，为1表大于，为2表小于 */
      int total=0;      /*记录符合条件的记录的个数 */
      char temp[10], temp1[10], degree[10], express[10];
      char operator;
      double value;
      enum Education grade1;
      int i=0;        /* 读入表达式时用于字符串到数值的转换 及 控制学历的合法输入 */
      
      amount=load("inform.txt");
      
      do
      {
             printf("\n\nChoice your item that to search by:    \t1).wage \t2).education:  [ ]\b\b");
             scanf("%d",&flag);  
             getchar();
      }while(!(flag==1 ||flag==2));
      
      
      if(flag==1)       /* 按工资进行查询 */
      {
           flag1=-1;
           do
           {
                printf("Please input the relative expression(>value or <value or =value):");
                gets(express);
                i=1;
                
                do
                {
                     temp[i-1]=express[i];
                     i++;
                }while(express[i-1] != '\0');
                
                operator = express[0];
                value = atof(temp);
                
                if(operator=='>') flag1=1;
                else if(operator=='<') flag1=2;
                else if(operator=='=') flag1=0;
                else printf("\nthe express format must be >value or <value or =value, please input again...\n");
                
           }while(!(flag1==1 || flag1==2 || flag1==0));
           
           
           if((fp=fopen("inform.txt","rb")) == NULL)
           {
                printf("\tCan not open the inform file!");
                getch();
                exit(1);
           }
           total=0;       /* 符合条件的记录数 */
           for(con=0; con<amount; con++)
           {
                 if(fread(&info, sizeof(info), 1, fp) != 1)
                 {
                      printf("\nfile read wrong!\n");
                      getch();
                      exit(1);
                 }
                 if(flag1==0 && info.wage==value)
                 {
                   total++;
                   if(total == 1) printf("%-5s%-8s%-8s%-11s%-10s%-8s%-8s%-12s%-8s\n","nun","name","sex ","birthday","education","duty","wage","address","phone");

                   if(info.sex==male) strcpy(temp,"male");
                   else strcpy(temp,"female");
                   
                   if(info.education==doctor) strcpy(temp1,"doctor");
                   else if(info.education==master) strcpy(temp1,"master");
                   else if(info.education==college) strcpy(temp1,"college");
                   else if(info.education==junior) strcpy(temp1,"junior");
                   else strcpy(temp1,"high");
                   
                   printf("%-5s%-8s%-8s%-4d/%-2d/%-2d%-10s%-8s%-8.2lf%-12s%-8s\n",info.num,info.name,temp,info.birthday.year,info.birthday.month,info.birthday.day,temp1,info.duty,info.wage,info.addr,info.phone);

                   if((total != 0) && (total%10 ==0))
                   {
                         printf("\n\n\tPress any key to continue......");
                         getch();
                         puts("\n\n");
                         printf("%-5s%-8s%-8s%-11s%-10s%-8s%-8s%-12s%-8s\n","nun","name","sex ","birthday","education","duty","wage","address","phone");
                  }
                 }
                 else if(flag1==1 && info.wage>value)
                 {
                       total++;
                       if(total == 1) 
                            printf("%-5s%-8s%-8s%-11s%-10s%-8s%-8s%-12s%-8s\n","nun","name","sex ","birthday","education","duty","wage","address","phone");
                       
                       if(info.sex==male) 
                            strcpy(temp,"male");
                       else
                            strcpy(temp,"female");