C语言动态链表实现学生学籍管理系统

第C语言动态链表实现学生学籍管理系统本文实例为大家分享了C语言利用动态链表实现学生学籍管理系统的具体代码，供大家参考，具体内容如下

/*

*C语言学生信息管理系统（动态链表版）

*作者：cbc

*时间：2025年6月7日

*功能：增添新键数据、修改删除数据、查询统计数据

*平台：windows

#includestdio.h

#includestdlib.h

#includestring.h

#includewindows.h

#defineLENsizeof(structStudent)

structStudent{

charnum[10];

/*学号*/

charname[20];/*姓名*/

charsex[10];

/*性别*/

intage;

/*年龄*/

charphone[12];/*电话*/

charqq[12];

/*QQ号*/

charnativePlace[20];/*籍贯*/

chardepartment[20];/*系别*/

charmajor[20];/*专业*/

charclassName[20];/*班级*/

structStudent*next;

charfilename[30];//全局变量，用来保存要打开的文件名字

/*生成链表*/

structStudent*Creat(intn){

voidmenu_print_in(void);

structStudent*head;

structStudent*p1,*p2;

inti;

system("cls");

for(i=1;in+1;i++){

p1=(structStudent*)malloc(LEN);

menu_print_in();

scanf("%s%s%s%d%s%s%s%s%s%s",p1-num,p1-name,p1-sex,

p1-age,p1-phone,p1-qq,p1-nativePlace,p1-department,p1-major,p1-className);

p1-next=NULL;

if(i==1){

head=p2=p1;

}

else{

p2-next=p1;

p2=p1;

}

}

return(head);

/*数据存盘(wb只写)*/

voidWriteData_wb(structStudent*head){

FILE*fp;

structStudent*p;

if((fp=fopen(filename,"wb"))==NULL)

printf("\aerror!Cannotopenthefile!");

p=head;

while(p!=NULL){

if(fwrite(p,LEN,1,fp)!=1){

printf("写入数据出错\n");

fclose(fp);

return;

}

p=p-next;

}

fclose(fp);

/*数据存盘(ab追加)

voidWriteData_ab(structStudent*head){

FILE*fp;

structStudent*p;

if((fp=fopen(filename,"ab"))==NULL)

printf("\aerror!Cannotopenthefile!");

p=head;

while(p!=NULL){

if(fwrite(p,LEN,1,fp)!=1){

printf("写入数据出错\n");

fclose(fp);

return;

}

p=p-next;

}

fclose(fp);

/*读取数据*/

/*读取数据文件保存到链表中，返回指向此链表头指针*/

structStudent*ReadData(void){

structStudent*head=NULL;

structStudent*p1,*p2;//s=p1;p=p2;

FILE*fp;

if((fp=fopen(filename,"rb+"))==NULL)

{

printf("打开文件出错\n");

exit(0);

}

while(!feof(fp)){

if((p1=(structStudent*)malloc(LEN))==NULL){

printf("内存申请出错\n");

fclose(fp);

exit(0);

}

if(fread(p1,LEN,1,fp)!=1){

free(p1);

break;

}

if(head==NULL)

head=p2=p1;

else{

p2-next=p1;

p2=p1;

}

}

fclose(fp);

return(head);

/*【1】全量查询*/

voidPrint_inquire_all(void){

voidmenu_print_out(void);

structStudent*pt;

pt=ReadData();

menu_print_out();

do{

printf("%-10s%6s%8s%4d%13s%11s

%s%s%s%s\n",

pt-num,pt-name,pt-sex,pt-age,pt-phone,pt-qq,pt-nativePlace,pt-department,pt-major,pt-className);

pt=pt-next;

}while(pt!=NULL);

printf("\n\n");

/*【2】学号查询*/

intPrint_inquire_num(){

voidmenu_print_out(void);

structStudent*pt;

charstr_num[10];

printf("◎请输入您要查询的学号:");

scanf("%s",str_num);

pt=ReadData();

menu_print_out();

do{

if(strcmp(pt-num,str_num)==0){

printf("%-10s%6s%8s%4d%13s%11s%s%s%s%s\n",

pt-num,pt-name,pt-sex,pt-age,pt-phone,pt-qq,pt-nativePlace,pt-department,pt-major,pt-className);

printf("\n\n");

return0;

}

pt=pt-next;

}while(pt!=NULL);

printf("数据库中没有存储您要查询的数据！\n");

printf("\n\n");

return0;

/*【3】姓名查询*/

intPrint_inquire_name(){

voidmenu_print_out(void);

structStudent*pt;

charstr_name[20];

printf("◎请输入您要查询的姓名:");

scanf("%s",str_name);

pt=ReadData();

menu_print_out();

do{

if(strcmp(pt-name,str_name)==0){

printf("%-10s%6s%8s%4d%13s%11s

%s%s%s%s\n",

pt-num,pt-name,pt-sex,pt-age,pt-phone,pt-qq,pt-nativePlace,pt-department,pt-major,pt-className);

printf("\n\n");

return0;

}

pt=pt-next;

}while(pt!=NULL);

printf("数据库中没有存储您要查询的数据！\n");

printf("\n\n");

return0;

/*【4】模糊查询*/

intPrint_inquire_fuzzy(void){

voidmenu_print_out(void);

structStudent*pt;

charstr_find[20];

intm=0;

printf("◎请输入您要查询的关键词:");

scanf("%s",str_find);

pt=ReadData();

menu_print_out();

do{

if(strstr(pt-num,str_find)!=0||strstr(pt-name,str_find)!=0

||strstr(pt-sex,str_find)!=0||strstr(pt-phone,str_find)!=0

||strstr(pt-qq,str_find)!=0){

printf("%-10s%6s%8s%4d%13s%11s%s%s%s%s\n",

pt-num,pt-name,pt-sex,pt-age,pt-phone,pt-qq,pt-nativePlace,pt-department,pt-major,pt-className);

m=1;

}

pt=pt-next;

}while(pt!=NULL);

if(!m)

printf("数据库中没有存储您要查询的数据！\n");

printf("\n\n");

return0;

/*【1】修改数据之删除记录*/

intDelete(){

structStudent*pt1,*pt2,*head;

charstr_num[20];

printf("\n◎请输入您要删除的学号信息:");

scanf("%s",str_num);

pt1=ReadData();

pt2=pt1-next;

head=pt1;

while(pt2!=NULL){

if(strcmp(pt1-num,str_num)==0){

WriteData_wb(pt2);

}

elseif(strcmp(pt2-num,str_num)==0){

pt1-next=pt2-next;

WriteData_wb(head);

}

pt2=pt2-next;

pt1=pt1-next;

}

if(pt2!=NULL)

printf("数据库中没有存储您要删除的数据！\n");

printf("\n\n");

return0;

/*【2】修改数据之修改记录*/

intAmend(){

voidmenu_print_in(void);

structStudent*pt1,*pt2,*head;

charstr_num[20];

printf("◎请输入您要修改的学号信息:");

scanf("%s",str_num);

pt1=ReadData();

pt2=pt1-next;

head=pt1;

while(pt2!=NULL){

if(strcmp(pt1-num,str_num)==0){

menu_print_in();

scanf("%s%s%s%d%s%s%s%s%s%s",pt1-num,pt1-name,pt1-sex,

pt1-age,pt1-phone,pt1-qq,pt1-nativePlace,pt1-department,pt1-major,pt1-className);

WriteData_wb(head);

}

elseif(strcmp(pt2-num,str_num)==0){

menu_print_in();

scanf("%s%s%s%d%s%s%s%s%s%s",pt2-num,pt2-name,pt2-sex,

pt2-age,pt2-phone,pt2-qq,pt2-nativePlace,pt2-department,pt2-major,pt2-className);

WriteData_wb(head);

}

pt2=pt2-next;

pt1=pt1-next;

}

if(pt2!=NULL)

printf("数据库中没有存储您要删除的数据！\n");

return0;

/*【3】修改数据之整理数据*/

intNeaten(){

structStudent*first;

structStudent*tail;

structStudent*p_min;

structStudent*min;

structStudent*p;

structStudent*head;

head=ReadData();

first=NULL;

while(head!=NULL){

for(p=head,min=head;p-next!=NULL;p=p-next){

if(strcmp(p-next-num,min-num)0){

p_min=p;

min=p-next;

}

}

if(first==NULL){

first=min;

tail=min;

}

else{

tail-next=min;

tail=min;

}

if(min==head){

head=head-next;

}

else{

p_min-next=min-next;

}

}

if(first!=NULL){

tail-next=NULL;

}

head=first;

WriteData_wb(head);

return0;

/*输入写入数据的数量*/

intCreat_num(void){

intn;

printf("\n◎请输入您此次要添加的数据个数:");

if(scanf("%d",n)!=1){

printf("\aerror!");

}

returnn;

/*选择将要打开的文件*/

intFile_name(){

printf("\n◎请输入您想要打开的文件:");

if(scanf("%s",filename)!=1)

printf("\aerror!");

return0;

/*主菜单*/

voidmenu(void){

voidmenu_add(void);

voidmenu_inquire(void);

voidmenu_amend(void);

inta=0;

printf("

╭════════╮

\n");

printf("╭══════╣学生管理系统V1.0╠══════╮\n");

printf("║

╰════════╯

║\n");

printf("║

【1】添加数据

【3】修改数据

║\n");

printf("║

║\n");

printf("║

【2】查询数据

【4】退出系统

║\n");

printf("║

║\n");

printf("╰══════════════════════╯\n");

printf("◎请输入功能前的序号进入相应的工具:【

】\b\b");

a=getchar();

while(a!='1'a!='2'a!='3'a!='4'){

printf("error!pleaseinputtherightnumber!\n");

putchar('\a');

getchar();

printf("◎请重新输入功能前的序号进入相应的工具:【

】\b\b");

a=getchar();

}

switch(a){

case'1':File_name();menu_add();

break;

case'2':File_name();menu_inquire();

break;

case'3':File_name();menu_amend();

break;

case'4':exit(0);

break;

}

getchar();

/*二级菜单之添加数据*/

voidmenu_add(void){

inta=0;

system("cls");

getchar();

printf("

╭════════╮

\n");

printf("╭══════╣

添加数据方式

╠══════╮\n");

printf("║

╰════════╯

║\n");

printf("║【1】新建文件【2】增添数据【3】返回菜单

║\n");

printf("║

║\n");

printf("╰══════════════════════╯\n");

printf("◎请输入功能前的序号进入相应的工具:【

】\b\b");

a=getchar();

while(a!='1'a!='2'a!='3'){

printf("error!pleaseinputtherightnumber!\n");

putchar('\a');

getchar();

printf("◎请重新输入功能前的序号进入相应的工具:【

】\b\b");

a=getchar();

}

switch(a){

case'1':WriteData_wb(Creat(Creat_num()));

printf("\n◎新建文件成功且数据已成功保存◎\n");

system("pause");

system("cls");

menu_add();

break;

case'2':WriteData_ab(Creat(Creat_num()));

printf("\n◎数据已成功添加◎\n");

system("pause");

system("cls");

menu_add();

break;

case'3':system("cls");

getchar();

menu();

break;

}

/*二级菜单之查询数据*/

voidmenu_inquire(void){

inta=0;

system("cls");

getchar();

while(1){

system("cls");

printf("

╭════════╮

\n");

printf("╭══════╣

查询数据方式

╠══════╮\n");

printf("║

╰════════╯

║\n");

printf("║

【1】全量查询

【4】模糊查询

║\n");

printf("║

║\n");

printf("║

【2】学号查询

【5】返回菜单

║\n");

printf("║

║\n");

printf("║

【3】姓名查询

║\n");

printf("╰══════════════════════╯\n");

printf("◎请输入功能前的序号进入相应的工具:【

】\b\b");

a=getchar();

while(a!='1'a!='2'a!='3'a!='3'a!='4'a!='5'a!='6'){

printf("error!pleaseinputtherightnumber!\n");

putchar('\a');

getchar();

printf("◎请重新输入功能前的序号进入相应的工具:【

】\b\b");

a=getchar();

}

switch(a){

case'1':Print_inquire_all();system("pause");getchar();

break;

case'2':Print_inquire_num();system("pause");getchar();

break;

case'3':Print_inquire_name();system("pause");getchar();

break;

case'4':Print_inquire_fuzzy();system("pause");getchar();;

break;

case'5':system("cls");getchar();menu();

break;

}

}

/*二级菜单之修改数据*/

voidmenu_amend(void){

inta=0;

system("cls");

getchar();

while(1){

system("cls");

printf("

╭════════╮

\n");

printf("╭══════╣

修改数据方式

╠══════╮\n");

printf("║

╰════════╯

║\n");

printf("║

【1】删除记录

【3】整理数据

║\n");

printf("║

║\n");

printf("║

【2】修改记录

【4】返回菜单

║\n");

printf("╰══════════════════════╯\n");

printf("◎请输入功能前的序号进入相应的工具:【

】\b\b");

a=getchar();

while(a!='1'a!='2'a!='3'a!='4'){

printf("error!pleaseinputtherightnumber!\n");

putchar('\a');