学籍管理系统代码(可运行)

#includestdio.h#includemalloc.h#includestring.h#includeio.h#defineNULL0#defineLENsizeof(structstudent)#defineFILE_DATA_PATHc:\student.txtstructstudent{longintnum;charname[20];intage;charsex[4];charbirthday[10];charaddress[30];longinttele_num;charE_mail[20];structstudent*next;};intTOTAL_NUM=0;structstudent*head=NULL;voidwelcome();voidmainmenu();voidrecord();voidinsert(structstudent*stu);voiddisplay(structstudent*stu);voiddisplayAll();voidquery();voidquery_by_num();voidquery_by_name();voidreadData();voidwriteData();voidfreeAll();voiddel();voidchange();voiddevise(structstudent*p);intmain(){charuserName[9];charuserPWD[7];inti;welcome();for(i=0;i3;i++){printf(\n管理员初始用户名和密码均为admin\n);printf(请输入您的用户名:);scanf(%s,userName);printf(\n请输入您的密码:);scanf(%s,userPWD);if((strcmp(userName,admin)==0)&&(strcmp(userPWD,admin)==0)){//用户名和密码正确，显示主菜单mainmenu();break;}else{if(i2){//用户名或密码错误，提示用户重新输入printf(用户名或密码错误，请重新输入!);}else{//连续3次输错用户名或密码，退出系统。printf(您已连续3次将用户名或密码输错，系统将退出!);}}}return0;}//显示欢迎信息voidwelcome(){printf(+---------------------------+\n);printf(||\n);printf(|欢迎使用学生信息管理系统|\n);printf(||\n);printf(+---------------------------+\n);}//系统主菜单voidmainmenu(){intchoice;choice=-1;readData();printf(\n温馨提示：为保证您的操作得到保存，请按正常顺序退出系统^_^\n);do{printf(\n\n\n);printf(\t\t\t--------------------------------\n);printf(\t\t\t+学生信息管理系统|\n);printf(\t\t\t--------------------------------\n);printf(\t\t\t+[1]----录入学生信息|\n);printf(\t\t\t+[2]----浏览学生信息|\n);printf(\t\t\t+[3]----查询学生信息|\n);printf(\t\t\t+[4]----删除学生信息|\n);printf(\t\t\t+[5]----修改学生信息|\n);printf(\t\t\t+[0]----退出系统|\n);printf(\t\t\t+*·*·*·*·*·*·*·*·*·*·|\n);printf(\t\t\t--------------------------------\n);printf(请输入您的选择：);scanf(%d,&choice);switch(choice){case0:writeData();freeAll();exit(0);case1:record();break;case2:displayAll();break;case3:query();break;case4:del();break;case5:change();break;default:printf(\n无效选项!);break;}}while(choice!=0);}//录入学生信息voidrecord(){structstudent*p0;p0=(structstudent*)malloc(LEN);printf(请输入学生的学号:);scanf(%ld,&p0-num);printf(请输入学生的姓名:);scanf(%s,p0-name);printf(请输入学生的年龄:);scanf(%d,&p0-age);printf(请输入学生的性别:);scanf(%s,p0-sex);printf(请输入学生的出生年月:);scanf(%s,p0-birthday);printf(请输入学生的地址:);scanf(%s,p0-address);printf(请输入学生的电话:);scanf(%ld,&p0-tele_num);printf(请输入学生的E-mail:);scanf(%s,p0-E_mail);insert(p0);printf(该学生的信息为:\n);printf(-------------------------------------------------------------------------------);printf(学号\t姓名\t年龄\t性别\t出生年月\t\t地址\t电话\tE-mail\n);display(p0);}voidinsert(structstudent*stu){structstudent*p0,*p1,*p2;p1=head;p0=stu;if(head==NULL){head=p0;p0-next=NULL;}else{while((p0-nump1-num)&&(p1-next!=NULL)){p2=p1;p1=p1-next;}if(p0-num=p1-num){if(head==p1)head=p0;elsep2-next=p0;p0-next=p1;}else{p1-next=p0;p0-next=NULL;}}TOTAL_NUM++;}voiddisplay(structstudent*p){printf(%ld\t%s\t%d\t%s\t%s\t%s\t%ld\t%s\n,p-num,p-name,p-age,p-sex,p-birthday,p-address,p-tele_num,p-E_mail);}//浏览学生信息voiddisplayAll(){structstudent*p;printf(学生总数:%d\n,TOTAL_NUM);p=head;if(head!=NULL){printf(\n学号\t姓名\t年龄\t性别\t出生年月\t地址\t电话\tE-mail\n);printf(-------------------------------------------------------------------------------);do{display(p);p=p-next;}while(p!=NULL);}printf(\n);}//查询学生信息voidquery(){intchoice;choice=-1;do{printf(\n);printf(+--------------------+\n);printf(|按学号查询请按1|\n);printf(|按姓名查询请按2|\n);printf(|取消请按0|\n);printf(+--------------------+\n);printf(请输入您的选择：);scanf(%d,&choice);switch(choice){case0:return;case1:query_by_num();break;case2:query_by_name();break;default:printf(\n无效选项!);break;}}while(choice!=0);}//按学号查询学生信息voidquery_by_num(){intnum;structstudent*p1;printf(请输入学生的学号：);scanf(%ld,&num);if(head==NULL){printf(无学生记录！\n);return;}p1=head;while(num!=p1-num&&p1-next!=NULL)p1=p1-next;if(num==p1-num){printf(\n学号\t姓名\t年龄\t性别\t出生年月\t地址\t电话\tE-mail\n);printf(-------------------------------------------------------------------------------);display(p1);}elseprintf(没有该学生记录，请核对！);}//按姓名查询学生信息voidquery_by_name(){charname[20];structstudent*p1;printf(请输入学生的姓名：);scanf(%s,name);if(head==NULL){printf(无学生记录！\n);return;}p1=head;while(strcmp(name,p1-name)&&p1-next!=NULL)p1=p1-next;if(!strcmp(name,p1-name)){printf(\n学号\t姓名\t年龄\t性别\t出生年月\t地址\t电话\tE-mail\n);printf(-------------------------------------------------------------------------------);display(p1);}elseprintf(没有该学生记录，请核对！);}//写入文件voidwriteData(){FILE*fp;//文件指针structstudent*p;fp=fopen(FILE_DATA_PATH,w);if(!fp){printf(文件打开错误！);return;}fprintf(fp,%d\n,TOTAL_NUM);for(p=head;p!=NULL;p=p-next){fprintf(fp,%ld\t%s\t%d\t%s\t%s\t%s\t%ld\t%s\n,p-num,p-name,p-age,p-sex,p-birthday,p-address,p-tele_num,p-E_mail);}fclose(fp);}voidfreeAll(){structstudent*p1,*p2;p1=p2=head;while(p1){p2=p1-next;free(p1);p1=p2;}}//读取文件voidreadData(){FILE*fp;//文件指针structstudent*p1,*p2;fp=fopen(FILE_DATA_PATH,r);if(!fp){printf(文件打开错误！);return0;}fscanf(fp,%d\n,&TOTAL_NUM);head=p1=p2=(structstudent*)malloc(LEN);fscanf(fp,%ld\t%s\t%d\t%s\t%s\t%s\t%ld\t%s\n,&p1-num,p1-name,&p1-age,p1-sex,p1-birthday,p1-address,&p1-tele_num,p