2015年5月9日 student information management system

/*大作业SIMS*/
//头文件

 #ifndef __FUNC_C__
 #define __FUNC_C__

 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #define LEN 128
 #define M 100   //账户最多人数
 #define N 1000    //学生最多人数
 #define USR_NAME_LEN 20
 #define USR_PWD_LEN  20

 typedef int USR_ROLE;

 //账号信息
 typedef struct usr_account_tag
 {
     char usr_name[USR_NAME_LEN];
     char usr_pwd[USR_PWD_LEN];
     USR_ROLE  usr_role;                            //管理员设置为1，其它设置为0
     struct usr_account_tag *pNext_Usr_Account;
 }USR_ACCOUNT, *pUSR_ACCOUNT;

 //学生信息
 typedef struct usr_infor_tag
 {
     int usr_id;                                //学号
     char usr_name[USR_NAME_LEN];            //姓名
     int usr_course_id;                        //课程号
     double usr_course_score;                //课程分数
     struct usr_infor_tag *pNext_Usr_Infor;    //下一个学生信息

 }USR_INFOR, *pUSR_INFOR;

 USR_ROLE system_init(pUSR_ACCOUNT *account_head, pUSR_INFOR *usr_infor_head, char *addres);

 USR_ROLE system_menu(USR_ROLE type);
 USR_ROLE  search_menu(USR_ROLE type);
 void usr_infor_delete_menu(void);
 void account_search_menu(void);
 void show_usr_info(pUSR_INFOR pphead);
 void show_usr_account(pUSR_ACCOUNT pphead);

 void search_usr_info_id(pUSR_INFOR *pphead, int id);
 void search_usr_info_name(pUSR_INFOR *pphead, char *name);

 void save_usr_info(pUSR_INFOR *pphead, char *addres);
 void add_usr_info(pUSR_INFOR *pphead, char *addres);
 void delet_usr_info_by_id(pUSR_INFOR *pphead, int id);
 void delet_usr_info_by_name(pUSR_INFOR *pphead, char name);
 void delet_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name);
 void updat_usr_infor_by_id(pUSR_INFOR *pphead, int id);
 void update_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name);
 void add_usr_account(pUSR_ACCOUNT *pphead, char *addres);
 void save_usr_account(pUSR_ACCOUNT *pphead, char *addres);
 void search_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name);

 #endif

//函数部分，没有实现返回功能，因为考虑不周没有，函数没有返回值，每次打开只能进行一次操作就退出，

 #include "sims.h"

 USR_ROLE system_menu(USR_ROLE type)
 {
     int number;
     int search_number;
     if (type == ){
         system("cls");
         printf("\n*******************************************************************************\n");
         printf("***************Student    Information    Management    System*****************\n");
         printf("*******************************************************************************\n");
         printf("\n\n\t\t1. search    student information");
         printf("\n\t\t2. add        student information");
         printf("\n\t\t3. update    student information");
         printf("\n\t\t4. delete    student information");
         printf("\n\t\t5. add        user account");
         printf("\n\t\t6. update    user account");
         printf("\n\t\t7. delete    user account");
         printf("\n\t\t8. search    user account");
         printf("\n\t\t9. exit");
         printf("\n\n\nselect a number between 1--9:");
         return type;
     }
     else if (type == )
     {
         system("cls");
         printf("\n*******************************************************************************\n");
         printf("***************Student    Information    Management    System****************\n");
         printf("*******************************************************************************\n");
         printf("\n\n\t\t1. search    student information");
         /*
         printf("\n\t\t2. add        student information");
         printf("\n\t\t3. update    student information");
         printf("\n\t\t4. delete    student information");
         printf("\n\t\t5. add        user account");
         printf("\n\t\t6. update    user account");
         printf("\n\t\t7. delete    user account");
         printf("\n\t\t8. search    user account");
         */
         printf("\n\t\t9. exit");
         printf("\n\n\nselect a number:");
         return type;
     }
     else
     {
         return;
     }
 }

 USR_ROLE  search_menu(USR_ROLE type)
 {
     system("cls");
     if (type == ){
         printf("\n0. search    all");
         printf("\n1. search    by id");
         printf("\n2. search    by name");
         printf("\n3. return");
         printf("\nselect a number:");
     }
     else
     {
         printf("\n1. search    by id");
         printf("\n2. search    by name");
         printf("\n3. return");
         printf("\nselect a number:");

     }
     return type;
 }

 void account_search_menu(void)
 {
     system("cls");
     printf("\n0. search    all account");
     printf("\n1. search    account by name");
     printf("\n2. exit");
     printf("\nselect a number:");

 }

 void usr_infor_delete_menu(void)
 {
     system("cls");
     printf("\n1. delete    by id");
     printf("\n2. delete    by name");
     printf("\n3. return");
     printf("\nselect a number:");
     fflush(stdin);
 }

 void show_usr_info(pUSR_INFOR pphead)
 {
     system("cls");
     while (pphead != NULL){
         printf("%-5d%-10s%-3d%7.2f\n", pphead->usr_id, pphead->usr_name, pphead->usr_course_id, pphead->usr_course_score);
         pphead = pphead->pNext_Usr_Infor;
     }
     printf("\n");
 }

 void show_usr_account(pUSR_ACCOUNT pphead)
 {
     system("cls");
     while (pphead != NULL){
         fprintf(stdout, "%-15s%-15s%3d\n", pphead->usr_name, pphead->usr_pwd, pphead->usr_role);
         pphead = pphead->pNext_Usr_Account;
         printf("\n");
     }
 }

 void search_usr_info_id(pUSR_INFOR *pphead, int id)
 {
     pUSR_INFOR pcur;
     FILE *fp;
     pcur = *pphead;
     while (pcur != NULL){
         if (pcur->usr_id == id){
             break;
         }
         else
             pcur = pcur->pNext_Usr_Infor;
     }
     if (pcur != NULL){
         printf("%-5d%-10s%-3d%7.2f\n", pcur->usr_id, pcur->usr_name, pcur->usr_course_id, pcur->usr_course_score);
     }
     else
     {
         printf("cannot find\n");
     }
 }

 void search_usr_info_name(pUSR_INFOR *pphead, char *name)
 {
     pUSR_INFOR pcur;
     FILE *fp;
     pcur = *pphead;
     while (pcur != NULL){
         if (strcmp(name,pcur->usr_name)==){
             break;
         }
         else
             pcur = pcur->pNext_Usr_Infor;
     }
     if (pcur != NULL){
         printf("%-5d%-10s%-3d%7.2f\n", pcur->usr_id, pcur->usr_name, pcur->usr_course_id, pcur->usr_course_score);
     }
     else
     {
         printf("cannot find\n");
     }
 }

 void search_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name)
 {
     pUSR_ACCOUNT pcur;
     pcur = *pphead;
     while (pcur != NULL){
         if (strcmp(pcur->usr_name, name) == )
             break;
         else
             pcur = pcur->pNext_Usr_Account;
     }
     if (pcur != NULL){
         fprintf(stdout, "%-15s%-15s%3d\n", pcur->usr_name, pcur->usr_pwd, pcur->usr_role);
     }
     else{
         fprintf(stdout, "donot exist the name\n");
     }
 }

 void add_usr_info(pUSR_INFOR *pphead, char *addres)
 {
     pUSR_INFOR pnew = NULL;
     pUSR_INFOR pcur, ppre;
     char line[LEN];
     system("cls");
     fflush(stdin);
     printf("input: id   name   course_id   course_score\n");
     while (memset(line, , sizeof(line)), fgets(line, sizeof(line), stdin) != NULL){
         pnew = (pUSR_INFOR)calloc(, sizeof(USR_INFOR));
         sscanf(line, "%d%s%d%lf", &pnew->usr_id, pnew->usr_name, &pnew->usr_course_id, &pnew->usr_course_score);
         pcur = *pphead;
         ppre = NULL;
         //想增加判断学号是否已经存在，存在就拒接添加。
         while (pcur != NULL)
         {
             if (pcur->usr_id == pnew->usr_id)
                 break;
             else
                 pcur = pcur->pNext_Usr_Infor;
         }
         if (pcur == NULL){
             pcur = *pphead;
             ppre = NULL;
             while (pcur != NULL && pcur->usr_id <= pnew->usr_id){        //按照学号升序排列
                 ppre = pcur;
                 pcur = pcur->pNext_Usr_Infor;
             }
             if (ppre == NULL){
                 pnew->pNext_Usr_Infor = *pphead;
                 *pphead = pnew;
             }
             else
             {//中间和结尾都是这样，结尾时pcur为空
                 ppre->pNext_Usr_Infor = pnew;
                 pnew->pNext_Usr_Infor = pcur;
             }
         }
         else
         {
             fprintf(stdout, "the %d usr_infor already exist.\n",pcur->usr_id);
         }
         }

 }

 void add_usr_account(pUSR_ACCOUNT *pphead, char *addres)
 {
     pUSR_ACCOUNT pnew = NULL;
     pUSR_ACCOUNT pcur, ppre;
     char line[LEN];
     system("cls");
     fflush(stdin);
     printf("input: usr_name\tusr_pwd\tusr_role\n");
     while (memset(line, , sizeof(line)), fgets(line, sizeof(line), stdin) != NULL){
         pnew = (pUSR_ACCOUNT)calloc(, sizeof(USR_ACCOUNT));
         sscanf(line, "%s%s%d", pnew->usr_name, pnew->usr_pwd, &pnew->usr_role);
         pnew->pNext_Usr_Account = *pphead;
         *pphead = pnew;
     }
 }

 void save_usr_account(pUSR_ACCOUNT *pphead, char *addres)
 {
     pUSR_ACCOUNT pcur;
     FILE *fp_config, *fp_usr_account;
     char line[LEN];
     pcur = *pphead;
     if ((fp_config = fopen(addres, "r")) == NULL){
         printf("file cannot open fp_config\n");
         return;
     }
     //已知usr_account在第一行,不知道怎么判断?
     memset(line, , sizeof(line));
     fgets(line, sizeof(line), fp_config);
     line[strlen(line)-] = '\0';
     if ((fp_usr_account = fopen(line, "w")) == NULL){
         printf("file cannot open fp_usr_account\n");
         return;
     }
     fclose(fp_config);
     while (pcur != NULL){
         if (fprintf(fp_usr_account, "%-10s%-10s%-5d\n", pcur->usr_name,pcur->usr_pwd,pcur->usr_role) == EOF)
             printf("write error\n");
         pcur = pcur->pNext_Usr_Account;
     }
     fclose(fp_usr_account);
 }

 void save_usr_info(pUSR_INFOR *pphead, char *addres)
 {
     pUSR_INFOR pcur;
     FILE *fp_config, *fp_usr_infor;
     char line[LEN];
     pcur = *pphead;
     if ((fp_config = fopen(addres, "r")) == NULL){
         printf("file cannot open fp_config\n");
         return;
     }
     //已知usr_info在第二行所以采取读两次来调用，没有想到怎么用数组或者链表?
     memset(line, , sizeof(line));
     //第一行有\n，第二行没有\n
     fgets(line, sizeof(line), fp_config);
     memset(line, , sizeof(line));
     fgets(line, sizeof(line), fp_config);
     if ((fp_usr_infor = fopen(line, "w")) == NULL){
         printf("file cannot open fp_usr_infor\n");
         return;
     }
     fclose(fp_config);
     while (pcur != NULL){
         if (fprintf(fp_usr_infor, "%-5d%-10s%-5d%8.2f\n", pcur->usr_id,pcur->usr_name,pcur->usr_course_id,pcur->usr_course_score) == EOF)
             printf("write error\n");
         pcur = pcur->pNext_Usr_Infor;
     }
     fclose(fp_usr_infor);
 }

 void delet_usr_info_by_id(pUSR_INFOR *pphead, int id)
 {
     pUSR_INFOR pcur, ppre;
     FILE *fp;
     pcur = *pphead;
     ppre = NULL;
     while (pcur != NULL){
         if (pcur->usr_id == id){
             break;
         }
         else{
             ppre = pcur;
             pcur = pcur->pNext_Usr_Infor;
         }

     }
     if (pcur != NULL){
         if (ppre == NULL){
             //删除第一个结点
             *pphead = pcur->pNext_Usr_Infor;
         }
         else{
             ppre->pNext_Usr_Infor = pcur->pNext_Usr_Infor;

         }
         free(pcur);
         pcur = NULL;
     }
     else
     {
         printf("donot exist in the file.\n");
     }
     if (*pphead == NULL){
         free(*pphead);
         *pphead = NULL;
     }
 }

 void delet_usr_info_by_name(pUSR_INFOR *pphead, char name)
 {
     pUSR_INFOR pcur, ppre;
     FILE *fp;
     pcur = *pphead;
     ppre = NULL;
     while (pcur != NULL){
         if (strcmp(pcur->usr_name,name)==){
             break;
         }
         else{
             ppre = pcur;
             pcur = pcur->pNext_Usr_Infor;
         }

     }
     if (pcur != NULL){
         if (ppre == NULL){
             //删除第一个结点
             *pphead = pcur->pNext_Usr_Infor;
         }
         else{
             ppre->pNext_Usr_Infor = pcur->pNext_Usr_Infor;

         }
         free(pcur);
         pcur = NULL;
     }
     else
     {
         printf("donot exist in the file.\n");
     }
     if (*pphead == NULL){
         free(*pphead);
         *pphead = NULL;
     }
 }

 //账户信息不能全部删除，需要加判断？？？
 void delet_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name)
 {
     pUSR_ACCOUNT pcur, ppre;
     char line[LEN];
     pcur = *pphead;
     ppre = NULL;
     while (pcur != NULL &&  strcmp(pcur->usr_name, name) != ){
         ppre = pcur;
         pcur = pcur->pNext_Usr_Account;
     }
     if (pcur != NULL){
         ppre->pNext_Usr_Account = pcur->pNext_Usr_Account;
         fprintf(stdout, "delete ok.\n");
     }
     else
     {
         fprintf(stdout, "delete error, donot exit\n");
     }

 }

 void updat_usr_infor_by_id(pUSR_INFOR *pphead, int id)
 {
     pUSR_INFOR pcur;
     char line[LEN];
     pcur = *pphead;
     while (pcur != NULL){
         if (pcur->usr_id == id){
             break;
         }
         else
             pcur = pcur->pNext_Usr_Infor;
     }
     if (pcur != NULL){
         //只能修改后面三项内容
         fflush(stdin);
         memset(line, , sizeof(line));
         printf("updat NO.%d new infor\nname\tcouse_id\tcours_score:\n ", pcur->usr_id);
         fgets(line, sizeof(line), stdin);
         sscanf(line, "%s%d%lf", pcur->usr_name, &pcur->usr_course_id, &pcur->usr_course_score);

     }
     else
     {
         printf("cannot find the id_infor\n");
     }
 }

 void update_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name)
 {
     pUSR_ACCOUNT pcur;
     char line[LEN];
     pcur = *pphead;
     while (pcur != NULL &&  strcmp(pcur->usr_name, name) != ){
         pcur = pcur->pNext_Usr_Account;
     }
     if (pcur != NULL){
         memset(line, , sizeof(line));
         fflush(stdin);
         fprintf(stdout, "usr_pwd\t\tusr_role:\n");
         fgets(line, sizeof(line), stdin);
         sscanf(line, "%s%d", pcur->usr_pwd, &pcur->usr_role);
     }
     else
     {
         fprintf(stdout, "updata usr_account error\n");
     }

 }

//函数接口设计不好，因此都是主函数调用，程序比较混乱

 #include "sims.h"

 int main(int argc, char *argv[])
 {
     pUSR_INFOR usr_infor_head = NULL;
     pUSR_ACCOUNT account_head = NULL;
     char *paddres;        //传递配置文件地址
     int digit;
     int s_digit, d_digit;
     int usr_id, delet_id;
     char usr_name[LEN] = "";
     char usr_account_name[LEN] = "";
     USR_ROLE  type,s_type;    //登陆者身份标示
     paddres = (char *)calloc(, sizeof(char));
     paddres = argv[];
     //加载初始账户密码和学生信息
     type = system_init(&account_head, &usr_infor_head, paddres);
     s_type = system_menu(type);

     //以管理员身份登录
     if (s_type == ){

         fflush(stdin);
         scanf("%d", &digit);
         while (digit <  || digit > ) {
             fflush(stdin);
             //system("cls");
             scanf("%d", &digit);
         }
         switch (digit){
         case :
             search_menu(s_type);
             scanf("%d", &s_digit);
             while (s_digit <  || s_digit > ) {
                 fflush(stdin);
                 //system("cls");
                 scanf("%d", &s_digit);
             }
             switch (s_digit)
             {
             case :
                 //show all usr_infor
                 show_usr_info(usr_infor_head);
                 break;
             case :
                 //search by id
                 fflush(stdout);
                 system("cls");
                 fflush(stdin);
                 printf("input usr_id:\n");
                 scanf("%d", &usr_id);
                 search_usr_info_id(&usr_infor_head, usr_id);
                 break;
             case :
                 //search  by name
                 system("cls");
                 fflush(stdin);
                 printf("input usr_name:\n");
                 scanf("%s", usr_name);
                 search_usr_info_name(&usr_infor_head, usr_name);
                     break;
             case :
                 return;
                 //s_type = system_menu(type);
             default:
                 break;
             }
             break;

         case :
             //add
             add_usr_info(&usr_infor_head, argv[]);
             save_usr_info(&usr_infor_head, argv[]);
             break;
         case :
             //update by id
             fflush(stdout);
             system("cls");
             fflush(stdin);
             printf("input usr_id:\n");
             scanf("%d", &usr_id);
             updat_usr_infor_by_id(&usr_infor_head, usr_id);
             save_usr_info(&usr_infor_head, argv[]);
             break;
         case :
             //delet by id
             usr_infor_delete_menu();
             scanf("%d", &d_digit);
             if (d_digit == ){
                 system("cls");
                 fflush(stdin);
                 printf("input delet_usr_id:\n");
                 scanf("%d", &delet_id);
                 delet_usr_info_by_id(&usr_infor_head, delet_id);
                 save_usr_info(&usr_infor_head, argv[]);
             }
             else if (d_digit == ){
                 system("cls");
                 fflush(stdin);
                 printf("input delet_usr_name:\n");
                 scanf("%s",usr_name);
                 delet_usr_info_by_name(&usr_infor_head, usr_name);
                 save_usr_info(&usr_infor_head, argv[]);
             }
             else
             {
                 return;
             }
             break;
         case :
             //add user account
             add_usr_account(&account_head, argv[]);
             //save
             save_usr_account(&account_head, argv[]);
             break;
         case :
             //update usr_account
             system("cls");
             fflush(stdin);
             printf("input usr_account_name:\n");
             scanf("%s", usr_account_name);
             update_usr_account_by_name(&account_head, usr_account_name);
             save_usr_account(&account_head, argv[]);
             break;
         case :
             //delet usr_account_by_name
             system("cls");
             fflush(stdin);
             printf("input usr_account_name:\n");
             scanf("%s", usr_account_name);
             delet_usr_account_by_name(&account_head, usr_account_name);
             save_usr_account(&account_head, argv[]);
             break;
         case :
             //search usr_account
             account_search_menu();
             scanf("%d", &s_digit);
             while (s_digit <  || s_digit > ) {
                 fflush(stdin);
                 //system("cls");
                 scanf("%d", &s_digit);
             }

         if (s_digit == ){
             //show all account
             show_usr_account(account_head);
         }
         else if (s_digit == ){
             //search by name
             system("cls");
             fflush(stdin);
             printf("input usr_name:\n");
             scanf("%s", usr_account_name);
             search_usr_account_by_name(&account_head, usr_account_name);
         }
         else
             exit;
             break;
         case :
             exit;
             break;
         default:
             printf("select a digit between 1--9:");
         }
     }
     else if (s_type == )
         //以访客身份登录
     {
         fflush(stdin);
         scanf("%d", &digit);
         while (digit <  || digit > ) {
             fflush(stdin);
             //system("cls");
             scanf("%d", &digit);
         }

         if (digit == ){
             search_menu(s_type);
             scanf("%d", &s_digit);
             while (s_digit <  || s_digit > ) {
                 fflush(stdin);
                 scanf("%d", &s_digit);
             }
         }
         if (s_digit == ){
             //search by id
             fflush(stdout);
             system("cls");
             fflush(stdin);
             printf("input usr_id:\n");
             scanf("%d", &usr_id);
             search_usr_info_id(&usr_infor_head, usr_id);
         }
         else if (s_digit == ){
             //search by name
             system("cls");
             fflush(stdin);
             printf("input usr_name:\n");
             scanf("%s", usr_name);
             search_usr_info_name(&usr_infor_head, usr_name);
         }
         else    //(s_digit == 3)  退出
         {
             exit;
         }
     }
     else
         exit;

     system("pause");
     return ;
 }

//算是我自己写的比较长的代码mark//