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https://github.com/yv1ing/Student-Information-Management-System.git
synced 2025-09-16 14:44:46 +08:00
finished work
This commit is contained in:
Fangnan
232
function_module/delete_module.c
Normal file
232
function_module/delete_module.c
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@@ -0,0 +1,232 @@
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#include "../heads/for_function_module.h"
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#include "../heads/secondary_menu.h"
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#include "stdlib.h"
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#include "stdio.h"
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#include "windows.h"
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void delete_module(){
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char stu_num[20];
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char name[20];
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char gender[10];
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int age;
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float chinese,math,english;
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continue_query:
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//<2F><><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><CBB5><EFBFBD><EFBFBD><EFBFBD>
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system("cls");
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fflush(stdin);
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printf("------------------------------ѧ<><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>ϵͳ------------------------------\n");
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printf("-><3E><>ǰλ<C7B0>ã<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣɾ<CFA2><C9BE>\n\n");
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printf("->1<><31><EFBFBD><EFBFBD>ѧ<EFBFBD>Ų<EFBFBD>ѯ<EFBFBD><D1AF>ɾ<EFBFBD><C9BE>\n");
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printf("->2<><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ<EFBFBD><D1AF>ɾ<EFBFBD><C9BE>\n");
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printf("->3<><33><EFBFBD><EFBFBD><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD>ѯ<EFBFBD><D1AF>ɾ<EFBFBD><C9BE>\n");
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printf("->4<><34><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϼ<EFBFBD><CFBC>˵<EFBFBD>\n");
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//<2F><>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD>ڴ<EFBFBD>
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FILE *fp=fopen("../stu_info/stu_info.txt","r");
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struct stu *head,*p,*q,*t;
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head=(struct stu *) malloc(sizeof(struct stu));
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head->prev=NULL;
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q=head;
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int count=0;
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while (!feof(fp)){
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p=(struct stu *) malloc(sizeof(struct stu));
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fscanf(fp,"%s %s %s %d %f %f %f",&p->stu_num,&p->name,&p->gender,&p->age,&p->chinese,&p->math,&p->english);
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p->prev=q;
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q->next=p;
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q=p;
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count++;
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}
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fclose(fp);
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//<2F><><EFBFBD>ݱ<EFBFBD><DDB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>Ϊ<EFBFBD><CEAA><EFBFBD>У<EFBFBD><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>ڵ<EFBFBD>Ϊ<EFBFBD><CEAA>
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p->next=NULL;
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t=head->next;
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int whether_find=0;
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//<2F><>ȡ<EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>룬<EFBFBD>ж<EFBFBD>ִ<EFBFBD>з<EFBFBD><D0B7><EFBFBD>
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char query_menu_input;
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printf("\n-><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD>1/2/3/4<><34>");
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fflush(stdin);
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scanf("%c",&query_menu_input);
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switch (query_menu_input) {
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//<2F><>ѧ<EFBFBD>Ų<EFBFBD>ѯ
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case '1':{
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system("cls");
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fflush(stdin);
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printf("------------------------------ѧ<><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>ϵͳ------------------------------\n");
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printf("-><3E><>ǰλ<C7B0>ã<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣɾ<CFA2><C9BE>\n\n");
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printf("-><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7>ѧ<EFBFBD>ţ<EFBFBD>");
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scanf("%s",&stu_num);
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t=head->next;
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while (t!=NULL){
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if(strcmp(stu_num,t->stu_num)==0){
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system("cls");
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fflush(stdin);
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printf("------------------------------ѧ<><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>ϵͳ------------------------------\n");
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printf("-><3E><>ǰλ<C7B0>ã<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣɾ<CFA2><C9BE>\n\n");
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p=t;
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t->prev->next=t->next;
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t->next->prev=t->prev;
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whether_find+=1;
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}
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t=t->next;
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}
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printf("<EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD>%d<><64><EFBFBD><EFBFBD>¼\n\n",whether_find);
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//<2F><><EFBFBD>ĺ<DEB8><C4BA><EFBFBD><EFBFBD><EFBFBD>Ϣд<CFA2><D0B4><EFBFBD>ļ<EFBFBD>
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t=head->next;
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fp= fopen("../stu_info/stu_info.txt","w");
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for (int i = 1; i < count-1; i++) {
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fprintf(fp,"%-20s %-20s %-20s %-20d %-20f %-20f %-20f\n",t->stu_num,t->name,t->gender,t->age,t->chinese,t->math,t->english);
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t=t->next;
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}
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// while (t!=NULL){
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// fprintf(fp,"%-20s %-20s %-20s %-20d %-20f %-20f %-20f\n",t->stu_num,t->name,t->gender,t->age,t->chinese,t->math,t->english);
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// t=t->next;
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// }
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fclose(fp);
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count=0;
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if(whether_find==0){
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printf("->ϵͳ<CFB5><CDB3>û<EFBFBD>и<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>\n");
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Sleep(2000);
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whether_find=0;
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goto continue_query;
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}
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break;
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}
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ
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case '2':{
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system("cls");
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fflush(stdin);
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printf("------------------------------ѧ<><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>ϵͳ------------------------------\n");
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printf("-><3E><>ǰλ<C7B0>ã<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣɾ<CFA2><C9BE>\n\n");
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printf("-><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>");
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scanf("%s",&name);
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t=head->next;
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while (t!=NULL){
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if(strcmp(name,t->name)==0){
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system("cls");
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fflush(stdin);
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printf("------------------------------ѧ<><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>ϵͳ------------------------------\n");
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printf("-><3E><>ǰλ<C7B0>ã<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣɾ<CFA2><C9BE>\n\n");
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p=t;
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t->prev->next=t->next;
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t->next->prev=t->prev;
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whether_find+=1;
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}
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t=t->next;
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}
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printf("<EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD>%d<><64><EFBFBD><EFBFBD>¼\n\n",whether_find);
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//<2F><><EFBFBD>ĺ<DEB8><C4BA><EFBFBD><EFBFBD><EFBFBD>Ϣд<CFA2><D0B4><EFBFBD>ļ<EFBFBD>
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t=head->next;
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fp= fopen("../stu_info/stu_info.txt","w");
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for (int i = 1; i < count-1; i++) {
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fprintf(fp,"%-20s %-20s %-20s %-20d %-20f %-20f %-20f\n",t->stu_num,t->name,t->gender,t->age,t->chinese,t->math,t->english);
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t=t->next;
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}
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// while (t!=NULL){
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// fprintf(fp,"%-20s %-20s %-20s %-20d %-20f %-20f %-20f\n",t->stu_num,t->name,t->gender,t->age,t->chinese,t->math,t->english);
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// t=t->next;
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// }
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fclose(fp);
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count=0;
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if(whether_find==0){
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printf("->ϵͳ<CFB5><CDB3>û<EFBFBD>и<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>\n");
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Sleep(2000);
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whether_find=0;
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goto continue_query;
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}
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break;
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}
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//<2F><><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD>ѯ
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case '3':{
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system("cls");
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fflush(stdin);
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printf("------------------------------ѧ<><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>ϵͳ------------------------------\n");
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printf("-><3E><>ǰλ<C7B0>ã<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣɾ<CFA2><C9BE>\n\n");
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printf("-><3E><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD>Ա<EFBFBD><D4B1><EFBFBD>");
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scanf("%s",&gender);
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t=head->next;
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while (t!=NULL){
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if(strcmp(gender,t->gender)==0){
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system("cls");
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fflush(stdin);
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printf("------------------------------ѧ<><D1A7><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>ϵͳ------------------------------\n");
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printf("-><3E><>ǰλ<C7B0>ã<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>Ϣɾ<CFA2><C9BE>\n\n");
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p=t;
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t->prev->next=t->next;
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t->next->prev=t->prev;
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whether_find+=1;
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count--;
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}
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t=t->next;
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}
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printf("<EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD>%d<><64><EFBFBD><EFBFBD>¼\n\n",whether_find);
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//<2F><><EFBFBD>ĺ<DEB8><C4BA><EFBFBD><EFBFBD><EFBFBD>Ϣд<CFA2><D0B4><EFBFBD>ļ<EFBFBD>
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t=head->next;
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fp=fopen("../stu_info/stu_info.txt","w");
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for (int i = 1; i < count; i++) {
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fprintf(fp,"%-20s %-20s %-20s %-20d %-20f %-20f %-20f\n",t->stu_num,t->name,t->gender,t->age,t->chinese,t->math,t->english);
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t=t->next;
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}
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// while (t!=NULL){
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// fprintf(fp,"%-20s %-20s %-20s %-20d %-20f %-20f %-20f\n",t->stu_num,t->name,t->gender,t->age,t->chinese,t->math,t->english);
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// t=t->next;
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// }
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fclose(fp);
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count=0;
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if(whether_find==0){
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printf("->ϵͳ<CFB5><CDB3>û<EFBFBD>и<EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>\n");
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Sleep(2000);
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whether_find=0;
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goto continue_query;
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}
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break;
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}
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//<2F><><EFBFBD><EFBFBD><EFBFBD>ϼ<EFBFBD><CFBC>˵<EFBFBD>
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case '4':{
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secondary_menu();
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}
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//<2F><><EFBFBD>벻<EFBFBD>Ϸ<EFBFBD>
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default:{
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printf("<EFBFBD><EFBFBD><EFBFBD>벻<EFBFBD>Ϸ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룡\n\n");
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fflush(stdin);
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Sleep(2000);
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goto continue_query;
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}
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}
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//<2F><>ȡ<EFBFBD>û<EFBFBD><C3BB><EFBFBD><EFBFBD>룬<EFBFBD>ж<EFBFBD>ִ<EFBFBD>з<EFBFBD><D0B7><EFBFBD>
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char whether_continue_query;
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printf("<EFBFBD>Ƿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>y/n<><6E>");
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scanf("%c",&whether_continue_query);
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switch (whether_continue_query) {
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//<2F><><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE>
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case 'y':{
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goto continue_query;
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break;
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}
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//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɾ<EFBFBD><C9BE>
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case 'n':{
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secondary_menu();
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break;
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}
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//<2F><><EFBFBD>벻<EFBFBD>Ϸ<EFBFBD>
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default:{
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printf("-><3E><><EFBFBD>벻<EFBFBD>Ϸ<EFBFBD><CFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>룡\n\n");
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fflush(stdin);
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Sleep(2000);
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goto continue_query;
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break;
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}
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}
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}
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