学生信息管理系统C语言基于链表文件.docx
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学生信息管理系统C语言基于链表文件.docx
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学生信息管理系统C语言基于链表文件
#include
#include
#include
#include
#include
#defineLENsizeof(structstudent)
#defineDAT_FILENAME"Information.txt"
/**********************定义数据结构********************/
structdate
{
intyear;
intmonth;
intday;
};
structstudent
{
intID;
charName[8];
intage;
charxb;
chartelephone[15];
charaddress[40];
structdatebirthday;
charemail[40];
structstudent*next;
};
/*************************函数原型*********************/
voidDispMainMenu();
voidDisplayInformation(structstudent*head);
structstudent*FindstudentID(structstudent*head,intfindID);
structstudent*FindstudentName(structstudent*head,charfindname[]);
structstudent*InformationInput(structstudent*head);
voidQueryInformation(structstudent*head);
structstudent*EditInformation(structstudent*head);
structstudent*Insert(structstudent*head,structstudent*p);
voidSave(structstudent*head);
structstudent*Read(structstudent*head);
structstudent*Delete(structstudent*head,intfindID);
structstudent*Add(structstudent*head);
voidHelp();
/************************显示主菜单***************************/
voidDispMainMenu()
{
printf("*********************************学生信息管理系统******************************\n");
printf("\n");
printf("\t\t\t\t1--信息录入\n");
printf("\n");
printf("\t\t\t\t2--信息修改\n");
printf("\n");
printf("\t\t\t\t3--信息查询\n");
printf("\n");
printf("\t\t\t\t4--保存数据到文件\n");
printf("\n");
printf("\t\t\t\t5--打开数据文件\n");
printf("\n");
printf("\t\t\t\t6--文件追加\n");
printf("\n");
printf("\t\t\t\t7--帮助\n");
printf("\n");
printf("\t\t\t\t0--退出\n");
printf("\n");
printf("友情提示:
初次使用请先阅读帮助\n");
printf("*******************************************************************************\n");
printf("请选择(0-7):
");/*显示主菜单*/
}
/*************************************帮助**************************************************/
voidHelp()
{
printf("\n\t\t\t欢迎进入帮助系统!
\n\n");
printf("\t1.请按照主菜单提示选择所需执行功能的数字代号!
\n");
printf("\t2.所有文件请按照规范输入\n");
printf("\t3.刚开始执行程序时若需要文本文件里的数据,请先进行读取文件信息!
\n");
printf("\t4.修改信息以后,请切记需要保存!
\n");
printf("\n");
}
/***********************显示所有学生信息**********************/
voidDisplayInformation(structstudent*head)
{
structstudent*p;
printf("*******************************************************************************");
printf("\n学号\t姓名\t年龄\t性别\t电话\t\t地址\t出生年月\temail\n");
p=(structstudent*)malloc(LEN);
p=head;
if(head!
=NULL)
while(p!
=NULL)
{
printf("%-d\t%-s\t%-d\t",p->ID,p->Name,p->age);
printf("%-c\t%-s\t%-s\t",p->xb,p->telephone,p->address);
printf("%-d%d%d",p->birthday.year,p->birthday.month,p->birthday.day);
printf("\t%-s\n",p->email);
p=p->next;
}
else
printf("无数据\n");
}
/**************************查找指定学号的学生信息******************************/
structstudent*FindstudentID(structstudent*head,intfindID)
{
structstudent*p;
p=(structstudent*)malloc(LEN);
p=head;
if(head!
=NULL)
while(p!
=NULL)
{
if(p->ID==findID)
break;
p=p->next;
}
else
printf("无数据\n");
returnp;
}
/***************************查找指定姓名的学生信息**********************/
structstudent*FindstudentName(structstudent*head,charfindname[])
{
structstudent*p;
p=(structstudent*)malloc(LEN);
p=head;
if(head!
=NULL)
while(p!
=NULL)
{
if(strcmp(p->Name,findname)==0)
break;
p=p->next;
}
else
printf("无数据\n");
returnp;
}
/********************学生信息录入**********************************/
structstudent*InformationInput(structstudent*head)
{
intnumber,i;
structstudent*p;
p=(structstudent*)malloc(LEN);
printf("\n请输入本次录入的学生人数:
");
scanf("%d",&number);
for(i=0;i { printf("请输入第%d个学生的学号(八个字符以内): ",i+1); scanf("%d",&p->ID); printf("\t\t\t姓名: \t"); scanf("%s",p->Name); printf("\t\t\t年龄: \t"); scanf("%d",&p->age); printf("\t\t\t性别(男M、女W): "); scanf("%s",&p->xb); printf("\t\t\t电话(八位): \t"); scanf("%s",p->telephone); printf("\t\t\t地址: \t"); scanf("%s",p->address); printf("\t\t\t出生年月: \t"); scanf("%d%d%d",&p->birthday.year,&p->birthday.month,&p->birthday.day); printf("\t\t\temail: \t"); scanf("%s",p->email); head=Insert(head,p); p=(structstudent*)malloc(LEN); } printf("\n您的输入信息是: \n"); DisplayInformation(head); return(head); } /**************************学生信息查询*************************/ voidQueryInformation(structstudent*head) { charselect; intfindID; charfindname[8]; structstudent*p; printf("*********************请选择查询方式*************************\n"); printf("\t1--按学号查询;\t2--按姓名查询\n"); printf("************************************************************\n"); printf("请选择(1-2): ");/*显示菜单信息*/ select=getche(); getch(); switch(select) { case'1': printf("\n按学号查询\n请输入学生的学号: "); scanf("%d",&findID); if((p=FindstudentID(head,findID))! =NULL)/*找到指定学号的学生*/ { printf("\n查找结果如下: \n"); printf("\n学号\t姓名\t年龄\t性别\t电话\t\t地址\t出生年月\temail\n"); printf("%d\t%s\t%d\t",p->ID,p->Name,p->age); printf("%c\t%s\t%s\t",p->xb,p->telephone,p->address); printf("%d%d%d",p->birthday.year,p->birthday.month,p->birthday.day); printf("\t%s\n",p->email); } else/*没有找到*/ printf("您输入的学号不存在! \n"); break; case'2': printf("\n按姓名查询\n请输入学生的姓名: "); scanf("%s",&findname); if((p=FindstudentName(head,findname))! =NULL)/*找到指定姓名的学生*/ { printf("\n查找结果如下: \n"); printf("\n学号\t姓名\t年龄\t性别\t电话\t地址\t出生年月\temail\n"); printf("%d\t%s\t%d\t",p->ID,p->Name,p->age); printf("%c\t%s\t%s\t",p->xb,p->telephone,p->address); printf("%d%d%d",p->birthday.year,p->birthday.month,p->birthday.day); printf("\t%s\n",p->email); } else/*没有找到*/ printf("您输入的姓名不存在! \n"); break; default: printf("选择错误! \n"); } } /*********************************修改学生信息***********************/ structstudent*EditInformation(structstudent*head) { intfindID; charselect; structstudent*p; printf("\n请输入学生的学号: "); scanf("%d",&findID); if((p=FindstudentID(head,findID))! =NULL)/*找到指定学号的学生*/ { printf("*********************请修改方式*************************\n"); printf("\t1--修改信息;\t2--删除信息\n"); printf("************************************************************\n"); printf("请选择(1-2): "); select=getche(); getch(); switch(select) { case'1': /*修改信息*/ printf("您选择的是修改信息! \n"); printf("姓名: %s\n",p->Name); printf("原信息: 学号: %d\t年龄: %d\t性别: %c\n",p->ID,p->age,p->xb); printf("\t电话: %s\t地址: %s\temail: %s\n",p->telephone,p->address,p->email); printf("请输入新信息\n"); printf("学号\t"); scanf("%d",&p->ID); printf("姓名: \t"); scanf("%s",p->Name); printf("年龄: \t"); scanf("%d",&p->age); printf("性别(男M、女W): "); scanf("%s",&p->xb); printf("电话: \t"); scanf("%s",p->telephone); printf("地址: \t"); scanf("%s",p->address); printf("出生年月: \t"); scanf("%d%d%d",&p->birthday.year,&p->birthday.month,&p->birthday.day); printf("email: \t"); scanf("%s",p->email); break; case'2': /*删除信息*/ printf("您选择的是删除信息! \n"); head=Delete(head,findID); break; } } else/*没有找到学号匹配的记录*/ printf("您输入的学号不存在! \n"); return(head); } /**************************有序插入***************************************/ structstudent*Insert(structstudent*head,structstudent*p) { structstudent*p0,*p1; if(head==NULL) { head=p; p->next=NULL; return(head); } if(p->ID { p->next=head; head=p; return(head); } p1=head; while((p->ID>p1->ID)&&(p1->next! =NULL)) { p0=p1; p1=p1->next; } if(p->ID { p->next=p1; p0->next=p; } else { if(p->ID==p1->ID) ; else { p1->next=p; p->next=NULL; } } return(head); } /*******************************保存数据到文件**************************/ voidSave(structstudent*head) { FILE*fp; structstudent*p; p=head; if((fp=fopen(DAT_FILENAME,"w+"))! =NULL)/*以W+的方式打开文件*/ { while(p! =NULL) { fprintf(fp,"%d\t",p->ID); fprintf(fp,"%s\t",p->Name); fprintf(fp,"%d\t",p->age); fprintf(fp,"%c\t",p->xb); fprintf(fp,"%s\t",p->telephone); fprintf(fp,"%s\t",p->address); fprintf(fp,"%d%d%d\t",p->birthday.year,p->birthday.month,p->birthday.day); fprintf(fp,"%s\n",p->email); p=p->next; } /*将链表的内容写入文件*/ fclose(fp); } else printf("cannotopenfile\n"); } /***************************打开数据文件************************/ structstudent*Read(structstudent*head) { structstudent*p; p=(structstudent*)malloc(LEN); FILE*fp; if((fp=fopen(DAT_FILENAME,"r"))! =NULL) { /*读取文件中的内容到链表中*/ while(fscanf(fp,"%d\t",&p->ID)! =EOF) { fscanf(fp,"%s\t",p->Name); fscanf(fp,"%d\t",&p->age); fscanf(fp,"%c\t",&p->xb); fscanf(fp,"%s\t",p->telephone); fscanf(fp,"%s\t",p->address); fscanf(fp,"%d%d%d\t",&p->birthday.year,&p->birthday.month,&p->birthday.day); fscanf(fp,"%s\n",p->email); head=Insert(head,p); p=(structstudent*)malloc(LEN); } fclose(fp); } else printf("cannotopenfile\n"); returnhead; } /**************************文件内容追加************************/ structstudent*Add(structstudent*head) { head=Read(head); head=InformationInput(head); return(head); } /**************************删除信息****************************/ structstudent*Delete(structstudent*head,intfindID) { structstudent*pre,*p; if(head->ID==findID) { p=head; head=head->next; } else { pre=head; p=pre->next; while(p! =NULL&&p->ID! =findID) { pre=p; p=p->next; } if(p->ID==findID) pre->next=p->next; } free(p); return(head); }
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