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2015年5月9日 student information management system

/*大作业SIMS*/
//头文件

 1 #ifndef __FUNC_C__
 2 #define __FUNC_C__
 3 
 4 
 5 #include <stdio.h>
 6 #include <stdlib.h>
 7 #include <string.h>
 8 #define LEN 128
 9 #define M 100   //账户最多人数
10 #define N 1000    //学生最多人数
11 #define USR_NAME_LEN 20
12 #define USR_PWD_LEN  20
13 
14 typedef int USR_ROLE;
15 
16 //账号信息
17 typedef struct usr_account_tag
18 {
19     char usr_name[USR_NAME_LEN];
20     char usr_pwd[USR_PWD_LEN];
21     USR_ROLE  usr_role;                            //管理员设置为1，其它设置为0
22     struct usr_account_tag *pNext_Usr_Account;
23 }USR_ACCOUNT, *pUSR_ACCOUNT;
24 
25 
26 //学生信息
27 typedef struct usr_infor_tag
28 {
29     int usr_id;                                //学号
30     char usr_name[USR_NAME_LEN];            //姓名
31     int usr_course_id;                        //课程号
32     double usr_course_score;                //课程分数
33     struct usr_infor_tag *pNext_Usr_Infor;    //下一个学生信息
34 
35 }USR_INFOR, *pUSR_INFOR;
36 
37 
38 USR_ROLE system_init(pUSR_ACCOUNT *account_head, pUSR_INFOR *usr_infor_head, char *addres);
39 
40 USR_ROLE system_menu(USR_ROLE type);
41 USR_ROLE  search_menu(USR_ROLE type);
42 void usr_infor_delete_menu(void);
43 void account_search_menu(void);
44 void show_usr_info(pUSR_INFOR pphead);
45 void show_usr_account(pUSR_ACCOUNT pphead);
46 
47 void search_usr_info_id(pUSR_INFOR *pphead, int id);
48 void search_usr_info_name(pUSR_INFOR *pphead, char *name);
49 
50 void save_usr_info(pUSR_INFOR *pphead, char *addres);
51 void add_usr_info(pUSR_INFOR *pphead, char *addres);
52 void delet_usr_info_by_id(pUSR_INFOR *pphead, int id);
53 void delet_usr_info_by_name(pUSR_INFOR *pphead, char name);
54 void delet_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name);
55 void updat_usr_infor_by_id(pUSR_INFOR *pphead, int id);
56 void update_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name);
57 void add_usr_account(pUSR_ACCOUNT *pphead, char *addres);
58 void save_usr_account(pUSR_ACCOUNT *pphead, char *addres);
59 void search_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name);
60 
61 
62 
63 #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，

  1 #include "sims.h"
  2 
  3 USR_ROLE system_menu(USR_ROLE type)
  4 {
  5     int number;
  6     int search_number;
  7     if (type == 1){
  8         system("cls");
  9         printf("
*******************************************************************************
");
 10         printf("***************Student    Information    Management    System*****************
");
 11         printf("*******************************************************************************
");
 12         printf("

		1. search    student information");
 13         printf("
		2. add        student information");
 14         printf("
		3. update    student information");
 15         printf("
		4. delete    student information");
 16         printf("
		5. add        user account");
 17         printf("
		6. update    user account");
 18         printf("
		7. delete    user account");
 19         printf("
		8. search    user account");
 20         printf("
		9. exit");
 21         printf("


select a number between 1--9:");
 22         return type;
 23     }
 24     else if (type == 2)
 25     {
 26         system("cls");
 27         printf("
*******************************************************************************
");
 28         printf("***************Student    Information    Management    System****************
");
 29         printf("*******************************************************************************
");
 30         printf("

		1. search    student information");
 31         /*
 32         printf("
		2. add        student information");
 33         printf("
		3. update    student information");
 34         printf("
		4. delete    student information");
 35         printf("
		5. add        user account");
 36         printf("
		6. update    user account");
 37         printf("
		7. delete    user account");
 38         printf("
		8. search    user account");
 39         */
 40         printf("
		9. exit");
 41         printf("


select a number:");
 42         return type;
 43     }
 44     else
 45     {
 46         return;
 47     }
 48 }
 49 
 50 
 51 
 52 USR_ROLE  search_menu(USR_ROLE type)
 53 {
 54     system("cls");
 55     if (type == 1){
 56         printf("
0. search    all");
 57         printf("
1. search    by id");
 58         printf("
2. search    by name");
 59         printf("
3. return");
 60         printf("
select a number:");
 61     }
 62     else
 63     {
 64         printf("
1. search    by id");
 65         printf("
2. search    by name");
 66         printf("
3. return");
 67         printf("
select a number:");
 68         
 69     }
 70     return type;
 71 }
 72 
 73 void account_search_menu(void)
 74 {
 75     system("cls");
 76     printf("
0. search    all account");
 77     printf("
1. search    account by name");
 78     printf("
2. exit");
 79     printf("
select a number:");
 80 
 81 }
 82 
 83 void usr_infor_delete_menu(void)
 84 {
 85     system("cls");
 86     printf("
1. delete    by id");
 87     printf("
2. delete    by name");
 88     printf("
3. return");
 89     printf("
select a number:");
 90     fflush(stdin);
 91 }
 92 
 93 
 94 void show_usr_info(pUSR_INFOR pphead)
 95 {
 96     system("cls");
 97     while (pphead != NULL){
 98         printf("%-5d%-10s%-3d%7.2f
", pphead->usr_id, pphead->usr_name, pphead->usr_course_id, pphead->usr_course_score);
 99         pphead = pphead->pNext_Usr_Infor;
100     }
101     printf("
");
102 }
103 
104 void show_usr_account(pUSR_ACCOUNT pphead)
105 {
106     system("cls");
107     while (pphead != NULL){
108         fprintf(stdout, "%-15s%-15s%3d
", pphead->usr_name, pphead->usr_pwd, pphead->usr_role);
109         pphead = pphead->pNext_Usr_Account;
110         printf("
");
111     }
112 }
113 
114 
115 void search_usr_info_id(pUSR_INFOR *pphead, int id)
116 {
117     pUSR_INFOR pcur;
118     FILE *fp;
119     pcur = *pphead;
120     while (pcur != NULL){
121         if (pcur->usr_id == id){
122             break;
123         }
124         else
125             pcur = pcur->pNext_Usr_Infor;
126     }
127     if (pcur != NULL){
128         printf("%-5d%-10s%-3d%7.2f
", pcur->usr_id, pcur->usr_name, pcur->usr_course_id, pcur->usr_course_score);
129     }
130     else
131     {
132         printf("cannot find
");
133     }
134 }
135 
136 void search_usr_info_name(pUSR_INFOR *pphead, char *name)
137 {
138     pUSR_INFOR pcur;
139     FILE *fp;
140     pcur = *pphead;
141     while (pcur != NULL){
142         if (strcmp(name,pcur->usr_name)==0){
143             break;
144         }
145         else
146             pcur = pcur->pNext_Usr_Infor;
147     }
148     if (pcur != NULL){
149         printf("%-5d%-10s%-3d%7.2f
", pcur->usr_id, pcur->usr_name, pcur->usr_course_id, pcur->usr_course_score);
150     }
151     else
152     {
153         printf("cannot find
");
154     }
155 }
156 
157 void search_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name)
158 {
159     pUSR_ACCOUNT pcur;
160     pcur = *pphead;
161     while (pcur != NULL){
162         if (strcmp(pcur->usr_name, name) == 0)
163             break;
164         else
165             pcur = pcur->pNext_Usr_Account;
166     }
167     if (pcur != NULL){
168         fprintf(stdout, "%-15s%-15s%3d
", pcur->usr_name, pcur->usr_pwd, pcur->usr_role);
169     }
170     else{
171         fprintf(stdout, "donot exist the name
");
172     }
173 }
174 
175 
176 void add_usr_info(pUSR_INFOR *pphead, char *addres)
177 {
178     pUSR_INFOR pnew = NULL;
179     pUSR_INFOR pcur, ppre;
180     char line[LEN];
181     system("cls");
182     fflush(stdin);
183     printf("input: id   name   course_id   course_score
");
184     while (memset(line, 0, sizeof(line)), fgets(line, sizeof(line), stdin) != NULL){
185         pnew = (pUSR_INFOR)calloc(1, sizeof(USR_INFOR));
186         sscanf(line, "%d%s%d%lf", &pnew->usr_id, pnew->usr_name, &pnew->usr_course_id, &pnew->usr_course_score);
187         pcur = *pphead;
188         ppre = NULL;
189         //想增加判断学号是否已经存在，存在就拒接添加。
190         while (pcur != NULL)
191         {
192             if (pcur->usr_id == pnew->usr_id)
193                 break;
194             else
195                 pcur = pcur->pNext_Usr_Infor;
196         }
197         if (pcur == NULL){
198             pcur = *pphead;
199             ppre = NULL;
200             while (pcur != NULL && pcur->usr_id <= pnew->usr_id){        //按照学号升序排列
201                 ppre = pcur;
202                 pcur = pcur->pNext_Usr_Infor;
203             }
204             if (ppre == NULL){
205                 pnew->pNext_Usr_Infor = *pphead;
206                 *pphead = pnew;
207             }
208             else
209             {//中间和结尾都是这样，结尾时pcur为空
210                 ppre->pNext_Usr_Infor = pnew;
211                 pnew->pNext_Usr_Infor = pcur;
212             }
213         }
214         else
215         {
216             fprintf(stdout, "the %d usr_infor already exist.
",pcur->usr_id);
217         }
218         }
219 
220         
221     
222 }
223 
224 void add_usr_account(pUSR_ACCOUNT *pphead, char *addres)
225 {
226     pUSR_ACCOUNT pnew = NULL;
227     pUSR_ACCOUNT pcur, ppre;
228     char line[LEN];
229     system("cls");
230     fflush(stdin);
231     printf("input: usr_name	usr_pwd	usr_role
");
232     while (memset(line, 0, sizeof(line)), fgets(line, sizeof(line), stdin) != NULL){
233         pnew = (pUSR_ACCOUNT)calloc(1, sizeof(USR_ACCOUNT));
234         sscanf(line, "%s%s%d", pnew->usr_name, pnew->usr_pwd, &pnew->usr_role);
235         pnew->pNext_Usr_Account = *pphead;
236         *pphead = pnew;
237     }
238 }
239 
240 
241 void save_usr_account(pUSR_ACCOUNT *pphead, char *addres)
242 {
243     pUSR_ACCOUNT pcur;
244     FILE *fp_config, *fp_usr_account;
245     char line[LEN];
246     pcur = *pphead;
247     if ((fp_config = fopen(addres, "r")) == NULL){
248         printf("file cannot open fp_config
");
249         return;
250     }
251     //已知usr_account在第一行,不知道怎么判断?
252     memset(line, 0, sizeof(line));
253     fgets(line, sizeof(line), fp_config);
254     line[strlen(line)-1] = '';
255     if ((fp_usr_account = fopen(line, "w")) == NULL){
256         printf("file cannot open fp_usr_account
");
257         return;
258     }
259     fclose(fp_config);
260     while (pcur != NULL){
261         if (fprintf(fp_usr_account, "%-10s%-10s%-5d
", pcur->usr_name,pcur->usr_pwd,pcur->usr_role) == EOF)
262             printf("write error
");
263         pcur = pcur->pNext_Usr_Account;
264     }
265     fclose(fp_usr_account);
266 }
267 
268 void save_usr_info(pUSR_INFOR *pphead, char *addres)
269 {
270     pUSR_INFOR pcur;
271     FILE *fp_config, *fp_usr_infor;
272     char line[LEN];
273     pcur = *pphead;
274     if ((fp_config = fopen(addres, "r")) == NULL){
275         printf("file cannot open fp_config
");
276         return;
277     }
278     //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?
279     memset(line, 0, sizeof(line));
280     //第一行有
，第二行没有

281     fgets(line, sizeof(line), fp_config);
282     memset(line, 0, sizeof(line));
283     fgets(line, sizeof(line), fp_config);
284     if ((fp_usr_infor = fopen(line, "w")) == NULL){
285         printf("file cannot open fp_usr_infor
");
286         return;
287     }
288     fclose(fp_config);
289     while (pcur != NULL){
290         if (fprintf(fp_usr_infor, "%-5d%-10s%-5d%8.2f
", pcur->usr_id,pcur->usr_name,pcur->usr_course_id,pcur->usr_course_score) == EOF)
291             printf("write error
");
292         pcur = pcur->pNext_Usr_Infor;
293     }
294     fclose(fp_usr_infor);
295 }
296 
297 
298 void delet_usr_info_by_id(pUSR_INFOR *pphead, int id)
299 {
300     pUSR_INFOR pcur, ppre;
301     FILE *fp;
302     pcur = *pphead;
303     ppre = NULL;
304     while (pcur != NULL){
305         if (pcur->usr_id == id){
306             break;
307         }
308         else{
309             ppre = pcur;
310             pcur = pcur->pNext_Usr_Infor;
311         }
312             
313     }
314     if (pcur != NULL){
315         if (ppre == NULL){
316             //删除第一个结点
317             *pphead = pcur->pNext_Usr_Infor;
318         }
319         else{
320             ppre->pNext_Usr_Infor = pcur->pNext_Usr_Infor;
321             
322         }
323         free(pcur);
324         pcur = NULL;
325     }
326     else
327     {
328         printf("donot exist in the file.
");
329     }
330     if (*pphead == NULL){
331         free(*pphead);
332         *pphead = NULL;
333     }
334 }
335 
336 void delet_usr_info_by_name(pUSR_INFOR *pphead, char name)
337 {
338     pUSR_INFOR pcur, ppre;
339     FILE *fp;
340     pcur = *pphead;
341     ppre = NULL;
342     while (pcur != NULL){
343         if (strcmp(pcur->usr_name,name)==0){
344             break;
345         }
346         else{
347             ppre = pcur;
348             pcur = pcur->pNext_Usr_Infor;
349         }
350 
351     }
352     if (pcur != NULL){
353         if (ppre == NULL){
354             //删除第一个结点
355             *pphead = pcur->pNext_Usr_Infor;
356         }
357         else{
358             ppre->pNext_Usr_Infor = pcur->pNext_Usr_Infor;
359 
360         }
361         free(pcur);
362         pcur = NULL;
363     }
364     else
365     {
366         printf("donot exist in the file.
");
367     }
368     if (*pphead == NULL){
369         free(*pphead);
370         *pphead = NULL;
371     }
372 }
373 
374 //账户信息不能全部删除，需要加判断？？？
375 void delet_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name)
376 {
377     pUSR_ACCOUNT pcur, ppre;
378     char line[LEN];
379     pcur = *pphead;
380     ppre = NULL;
381     while (pcur != NULL &&  strcmp(pcur->usr_name, name) != 0){
382         ppre = pcur;
383         pcur = pcur->pNext_Usr_Account;
384     }
385     if (pcur != NULL){
386         ppre->pNext_Usr_Account = pcur->pNext_Usr_Account;
387         fprintf(stdout, "delete ok.
");
388     }
389     else
390     {
391         fprintf(stdout, "delete error, donot exit
");
392     }
393 
394 }
395 
396 
397 void updat_usr_infor_by_id(pUSR_INFOR *pphead, int id)
398 {
399     pUSR_INFOR pcur;
400     char line[LEN];
401     pcur = *pphead;
402     while (pcur != NULL){
403         if (pcur->usr_id == id){
404             break;
405         }
406         else
407             pcur = pcur->pNext_Usr_Infor;
408     }
409     if (pcur != NULL){
410         //只能修改后面三项内容
411         fflush(stdin);
412         memset(line, 0, sizeof(line));
413         printf("updat NO.%d new infor
name	couse_id	cours_score:
 ", pcur->usr_id);
414         fgets(line, sizeof(line), stdin);
415         sscanf(line, "%s%d%lf", pcur->usr_name, &pcur->usr_course_id, &pcur->usr_course_score);
416 
417     }
418     else
419     {
420         printf("cannot find the id_infor
");
421     }
422 }
423 
424 void update_usr_account_by_name(pUSR_ACCOUNT *pphead, char* name)
425 {
426     pUSR_ACCOUNT pcur;
427     char line[LEN];
428     pcur = *pphead;
429     while (pcur != NULL &&  strcmp(pcur->usr_name, name) != 0){
430         pcur = pcur->pNext_Usr_Account;
431     }
432     if (pcur != NULL){
433         memset(line, 0, sizeof(line));
434         fflush(stdin);
435         fprintf(stdout, "usr_pwd		usr_role:
");
436         fgets(line, sizeof(line), stdin);
437         sscanf(line, "%s%d", pcur->usr_pwd, &pcur->usr_role);
438     }
439     else
440     {
441         fprintf(stdout, "updata usr_account error
");
442     }
443 
444 }

//函数接口设计不好，因此都是主函数调用，程序比较混乱

  1 #include "sims.h"
  2 
  3 int main(int argc, char *argv[])
  4 {
  5     pUSR_INFOR usr_infor_head = NULL;
  6     pUSR_ACCOUNT account_head = NULL;
  7     char *paddres;        //传递配置文件地址
  8     int digit;
  9     int s_digit, d_digit;
 10     int usr_id, delet_id;
 11     char usr_name[LEN] = "";
 12     char usr_account_name[LEN] = "";
 13     USR_ROLE  type,s_type;    //登陆者身份标示
 14     paddres = (char *)calloc(1, sizeof(char));
 15     paddres = argv[1];
 16     //加载初始账户密码和学生信息
 17     type = system_init(&account_head, &usr_infor_head, paddres);
 18     s_type = system_menu(type);
 19     
 20     //以管理员身份登录
 21     if (s_type == 1){
 22         
 23         fflush(stdin);
 24         scanf("%d", &digit);
 25         while (digit < 1 || digit > 9) {
 26             fflush(stdin);
 27             //system("cls");
 28             scanf("%d", &digit);
 29         }
 30         switch (digit){
 31         case 1:
 32             search_menu(s_type);
 33             scanf("%d", &s_digit);
 34             while (s_digit < 0 || s_digit > 3) {
 35                 fflush(stdin);
 36                 //system("cls");
 37                 scanf("%d", &s_digit);
 38             }
 39             switch (s_digit)
 40             {
 41             case 0:
 42                 //show all usr_infor
 43                 show_usr_info(usr_infor_head);
 44                 break;
 45             case 1:
 46                 //search by id
 47                 fflush(stdout);
 48                 system("cls");
 49                 fflush(stdin);
 50                 printf("input usr_id:
");
 51                 scanf("%d", &usr_id);
 52                 search_usr_info_id(&usr_infor_head, usr_id);
 53                 break;
 54             case 2:
 55                 //search  by name
 56                 system("cls");
 57                 fflush(stdin);
 58                 printf("input usr_name:
");
 59                 scanf("%s", usr_name);
 60                 search_usr_info_name(&usr_infor_head, usr_name);
 61                     break;
 62             case 3:
 63                 return;
 64                 //s_type = system_menu(type);
 65             default:
 66                 break;
 67             }
 68             break;
 69 
 70         case 2:
 71             //add
 72             add_usr_info(&usr_infor_head, argv[1]);
 73             save_usr_info(&usr_infor_head, argv[1]);
 74             break;
 75         case 3:
 76             //update by id
 77             fflush(stdout);
 78             system("cls");
 79             fflush(stdin);
 80             printf("input usr_id:
");
 81             scanf("%d", &usr_id);
 82             updat_usr_infor_by_id(&usr_infor_head, usr_id);
 83             save_usr_info(&usr_infor_head, argv[1]);
 84             break;
 85         case 4:
 86             //delet by id
 87             usr_infor_delete_menu();
 88             scanf("%d", &d_digit);
 89             if (d_digit == 1){
 90                 system("cls");
 91                 fflush(stdin);
 92                 printf("input delet_usr_id:
");
 93                 scanf("%d", &delet_id);
 94                 delet_usr_info_by_id(&usr_infor_head, delet_id);
 95                 save_usr_info(&usr_infor_head, argv[1]);
 96             }
 97             else if (d_digit == 2){
 98                 system("cls");
 99                 fflush(stdin);
100                 printf("input delet_usr_name:
");
101                 scanf("%s",usr_name);
102                 delet_usr_info_by_name(&usr_infor_head, usr_name);
103                 save_usr_info(&usr_infor_head, argv[1]);
104             }
105             else
106             {
107                 return;
108             }
109             break;
110         case 5:
111             //add user account
112             add_usr_account(&account_head, argv[1]);
113             //save
114             save_usr_account(&account_head, argv[1]);
115             break;
116         case 6:
117             //update usr_account
118             system("cls");
119             fflush(stdin);
120             printf("input usr_account_name:
");
121             scanf("%s", usr_account_name);
122             update_usr_account_by_name(&account_head, usr_account_name);
123             save_usr_account(&account_head, argv[1]);
124             break;
125         case 7:
126             //delet usr_account_by_name
127             system("cls");
128             fflush(stdin);
129             printf("input usr_account_name:
");
130             scanf("%s", usr_account_name);
131             delet_usr_account_by_name(&account_head, usr_account_name);
132             save_usr_account(&account_head, argv[1]);
133             break;
134         case 8:
135             //search usr_account
136             account_search_menu();
137             scanf("%d", &s_digit);
138             while (s_digit < 0 || s_digit > 3) {
139                 fflush(stdin);
140                 //system("cls");
141                 scanf("%d", &s_digit);
142             }
143 
144         if (s_digit == 0){
145             //show all account
146             show_usr_account(account_head);
147         }
148         else if (s_digit == 1){
149             //search by name
150             system("cls");
151             fflush(stdin);
152             printf("input usr_name:
");
153             scanf("%s", usr_account_name);
154             search_usr_account_by_name(&account_head, usr_account_name);
155         }
156         else
157             exit;
158             break;
159         case 9:
160             exit;
161             break;
162         default:
163             printf("select a digit between 1--9:");
164         }
165     }
166     else if (s_type == 2)
167         //以访客身份登录
168     {
169         fflush(stdin);
170         scanf("%d", &digit);
171         while (digit < 0 || digit > 3) {
172             fflush(stdin);
173             //system("cls");
174             scanf("%d", &digit);
175         }
176 
177         if (digit == 1){
178             search_menu(s_type);
179             scanf("%d", &s_digit);
180             while (s_digit < 0 || s_digit > 3) {
181                 fflush(stdin);
182                 scanf("%d", &s_digit);
183             }
184         }
185         if (s_digit == 1){
186             //search by id
187             fflush(stdout);
188             system("cls");
189             fflush(stdin);
190             printf("input usr_id:
");
191             scanf("%d", &usr_id);
192             search_usr_info_id(&usr_infor_head, usr_id);
193         }
194         else if (s_digit == 2){
195             //search by name
196             system("cls");
197             fflush(stdin);
198             printf("input usr_name:
");
199             scanf("%s", usr_name);
200             search_usr_info_name(&usr_infor_head, usr_name);
201         }
202         else    //(s_digit == 3)  退出
203         {
204             exit;
205         }
206     }
207     else
208         exit;
209 
210     system("pause");
211     return 0;
212 }

//算是我自己写的比较长的代码mark//

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原文地址：https://www.cnblogs.com/luolizhi/p/4490701.html