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#include <stdio.h>
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#include <windows.h>
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#include <stdlib.h>
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//结构体定义
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typedef struct Node{
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int id;//学号
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char name[100];//名
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char sex[10];//性别
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int ch,ma,en;//语数英
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int sum;//总分
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//指针域
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struct Node *next;
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}node;
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node List;//连表
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//文件读取
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int readFile(node *L);
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void printfAddStuInfo();//界面
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void insertStuInfo(node *L,node e);//功能
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//主页面--菜单
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void welcome();
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//退出程序
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void goodBye();
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//删除学生信息
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void deleteStuInfo(node *pr);
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//打印删除学生信息
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void printDeleteStuInfo(node *L);
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//修改学生信息
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void printFixStuInfo(node *L);
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//按姓名进行查找
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node * searchStuInfoByName(char name[],node *L);
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//按学号进行查找
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node * searchStuInfoById(int id,node *L);
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////查询学生信息
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void printSearchStuInfo(node *L);
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//保存文件
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int saveFile(node *L);
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//添加功能的实现
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void insertStuInfo(node *L,node e);//功能
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//增加学生信息
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void printAddStuInfo();//输出界面
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//输出所有学生信息
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void printStuInfo(node *L);
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//文件输入
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int readFile(Node *L);
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//删除
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void deletestudentInfo();
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//退出
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void goodBye();
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//查询
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void searchstudentInfo();
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//输出
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void printstudentInfo(node *L);
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//添加
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void addstudentInfo(node *L);
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//修
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void fixstudentInfo(node *L);
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//查询
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void searchstudentInfo(node *L);
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//输出
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void printstudentInfo(node *L);
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//退
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void goodBye();
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int main(){
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int choice = 0;
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readFile(&List);
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// scanf("%d",&choice);
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while(true){
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welcome();
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scanf("%d",&choice);
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switch (choice)
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{
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case 1://添加
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printAddStuInfo();
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break;
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case 2://删除
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printDeleteStuInfo(&List);
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break;
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case 3://修改
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printFixStuInfo(&List);
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break;
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case 4://查询
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printSearchStuInfo(&List);
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break;
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case 5://输出
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printstudentInfo(&List);
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break;
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case 0://退出
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goodBye();
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break;
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// default:
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// break;
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}
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printf("是否继续操作！！！！(yse:1/no:0)(1/0)\n");
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scanf("%d",&choice);
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if(choice==0){
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break;
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}
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}
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return 0;
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}
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//主菜单页面
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void welcome(){
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printf("***********************\n");
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printf("*** 学生成绩管理系统 ***\n");
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printf("***作者：姜超 刘瑞斌****\n");
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printf("***添加学生信息————1****\n");
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printf("***删除学生信息————2****\n");
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printf("***修改学生信息————3****\n");
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printf("***查询学生信息————4****\n");
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printf("***输出学生信息————5****\n");
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printf("***退出管理系统————0****\n");
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printf("**请输入对应数字(0-5)***\n");
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}
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////添加
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//void addstudentInfo(){
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// printf("----添加学生信息\n");
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//}
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////删除
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//void deletestudentInfo(){
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// printf("----删除学生信息\n");
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//}
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////修修改
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//void fixstudentInfo(){
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// printf("----修改学生信息\n");
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//}
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////查询
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//void searchstudentInfo(){
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// printf("----查询学生信息\n");
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//}
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//输出
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void printstudentInfo(node *L){
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// printf("----输出学生信息\n");
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system("cls");
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node *p = L->next;
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printf("_______________________________________________________");
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printf("|学 号\t|姓名\t|性别\t|语文\t|数学\t|英语\t|总分\t|\n");
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printf("_______________________________________________________");
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if(p!=NULL){
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while(p!=NULL){
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printf("%d%s\t|%s\t|%d\t|%d\t|%d\t|%d",p->id,p->name,p->sex,p->ch,p->ma,p->en,p->sum);
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printf("______________________________________________________");
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p=p->next;
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}
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}
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}
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//文件输入
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int readFile(Node *L){
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FILE *fpr=fopen("studentInfo.txt","r");
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node st;
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node *s;
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node *t=L;
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if(fpr==NULL){
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return 0;
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}else{
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while(fscanf(fpr,"%d %s %s %d %d %d %d\n",&st.id,st.name,st.sex,&st.ch,&st.ma,&st.en,&st.sum)!=EOF){
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s=(node *)malloc(sizeof(node));
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*s = st;
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t->next=s;
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t=s;
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t->next=NULL;
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}
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}
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fclose(fpr);
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return 1;
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}
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//输出所有学生信息
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void printStuInfo(node *L){
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system("cls");
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node *p=L->next;
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printf("________________________________________________________\n");
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printf("|学号\t|姓名\t|性别\t|语文\t|数学\t|英语\t|总分\t|\n");
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printf("________________________________________________________\n");
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if(p!=NULL){
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while(p!=NULL){
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printf("%d|%s\t|%s\t|%d\t|%d\t|%d\t|%d\t|\n",p->id,p->name,p->sex,p->ch,p->ma,p->en,p->sum);
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printf("________________________________________________________\n");
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p=p->next;
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}
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}
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}
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//增加学生信息
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void printAddStuInfo(){
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//
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system("cls");
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node st;
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printf("请输入新增学生相关信息\n");
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printf("学号:");
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scanf("%d",&st.id);
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printf("姓名：");
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scanf("%s",st.name);
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printf("性别:");
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scanf("%s",st.sex);
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printf("语文:");
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scanf("%d",&st.ch);
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printf("数学:");
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scanf("%d",&st.ma);
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printf("英语:");
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scanf("%d",&st.en);
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st.sum=st.ch+st.ma+st.en;
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insertStuInfo(&List,st);
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}
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//保存文件
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int saveFile(node *L){
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FILE *fpw=fopen("studentInfo.txt","w");
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if(fpw==NULL) return 0;
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node *p=L->next;
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while(p!=NULL){
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fprintf(fpw,"%d %s %s %d %d %d %d\n",p->id,p->name,p->sex,p->ch,p->ma,p->en,p->sum);
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p=p->next;
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}
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fclose(fpw);//关闭文件指针
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return 1;
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}
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//再在学生信息的增加过程中添加文件数据的保存操作。
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void insertStuInfo(node *L,node e){
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//头插法
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node *h=L;
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node *s=(node *)malloc(sizeof(node));
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*s=e;
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s->next=h->next;
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h->next=s;
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//保存文件
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saveFile(L);
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}
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////查询学生信息
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void printSearchStuInfo(node *L){
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system("cls");
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int choice=0;
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int id;
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char name[50];
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node *st;
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printf("按学号查询----- 1\n");
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printf("按姓名查询----- 2\n");
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printf("请输入查询方式：");
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scanf("%d",&choice);
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if(choice == 1){
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printf("请输入要查询的学号：");
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scanf("%d",&id);
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st=searchStuInfoById(id,L);
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if(st==NULL){
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printf("查无此人！\n");
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}else{
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st=st->next;
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printf("________________________________________________________\n");
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printf("|学号\t|姓名\t|性别\t|语文\t|数学\t|英语\t|总分\t|\n");
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printf("________________________________________________________\n");
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printf("%d|%s\t|%s\t|%d\t|%d\t|%d\t|%d\t|\n",st->id,st->name,st->sex,st->ch,st->ma,st->en,st->sum);
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printf("________________________________________________________\n");
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}
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}else if(choice ==2){
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printf("请输入要查询的姓名：");
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scanf("%s",name);
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st=searchStuInfoByName(name,L);
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if(st==NULL){
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printf("查无此人！\n");
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}else{
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st=st->next;
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printf("________________________________________________________\n");
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printf("|学号\t|姓名\t|性别\t|语文\t|数学\t|英语\t|总分\t|\n");
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printf("________________________________________________________\n");
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printf("%d|%s\t|%s\t|%d\t|%d\t|%d\t|%d\t|\n",st->id,st->name,st->sex,st->ch,st->ma,st->en,st->sum);
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printf("________________________________________________________\n");
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}
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}
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}
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//按学号进行查找
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node * searchStuInfoById(int id,node *L){
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node *p=L;
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while(p->next!=NULL){
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if(p->next->id==id){
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return p;
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}
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p=p->next;
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}
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return NULL;
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}
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//按姓名进行查找
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node * searchStuInfoByName(char name[],node *L){
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node *p=L;
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while(p->next!=NULL){
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if(strcmp(name,p->next->name)==0){
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return p;
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}
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p=p->next;
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}
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return NULL;
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}
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//修改学生信息
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void printFixStuInfo(node *L){
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system("cls");
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int id;
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int choice=-1;
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printf("请输入要查找的学生学号");
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scanf("%d",&id);
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node *st=searchStuInfoById(id,L);
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if(st==NULL){
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printf("查无此人！");
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return;
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}
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st=st->next;
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while(1){
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system("cls");
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printf("________________________________________________________\n");
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printf("|学号\t|姓名\t|性别\t|语文\t|数学\t|英语\t|总分\t|\n");
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printf("________________________________________________________\n");
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printf("%d|%s\t|%s\t|%d\t|%d\t|%d\t|%d\t|\n",st->id,st->name,st->sex,st->ch,st->ma,st->en,st->sum);
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printf("________________________________________________________\n");
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printf("修改姓名---- 1\n");
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printf("修改性别---- 2\n");
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printf("修改语文---- 3\n");
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printf("修改数学---- 4\n");
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printf("修改英语---- 5\n");
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printf("请输入要修改的信息: ");
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scanf("%d",&choice);
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switch(choice){
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case 1:
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printf("请输入姓名：");
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scanf("%s",st->name);
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break;
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case 2:
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printf("请输入性别：");
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scanf("%s",st->sex);
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break;
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case 3:
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printf("请输入语文：");
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scanf("%d",&st->ch);
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break;
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case 4:
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printf("请输入数学：");
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scanf("%d",&st->ma);
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break;
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case 5:
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printf("请输入英语：");
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scanf("%d",&st->en);
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break;
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}
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st->sum=st->ch+st->ma+st->en;
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printf("是否继续修改学生信息?（y-1 / n-0）\n");
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scanf("%d",&choice);
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if(choice == 0){
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break;
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}
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}
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printf("________________________________________________________\n");
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printf("|学号\t|姓名\t|性别\t|语文\t|数学\t|英语\t|总分\t|\n");
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printf("________________________________________________________\n");
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printf("%d|%s\t|%s\t|%d\t|%d\t|%d\t|%d\t|\n",st->id,st->name,st->sex,st->ch,st->ma,st->en,st->sum);
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printf("________________________________________________________\n");
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//保存文件信息
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saveFile(L);
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}
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//打印删除学生信息
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void printDeleteStuInfo(node *L){
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system("cls");
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int id;
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node *p;
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printf("请输入要查找的学生学号");
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scanf("%d",&id);
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node *st=searchStuInfoById(id,L);
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p=st;
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if(st==NULL){
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printf("查无此人！");
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return;
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}
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st=st->next;
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printf("________________________________________________________\n");
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printf("|学号\t|姓名\t|性别\t|语文\t|数学\t|英语\t|总分\t|\n");
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printf("________________________________________________________\n");
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printf("%d|%s\t|%s\t|%d\t|%d\t|%d\t|%d\t|\n",st->id,st->name,st->sex,st->ch,st->ma,st->en,st->sum);
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printf("________________________________________________________\n");
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deleteStuInfo(p);
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saveFile(L);
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}
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//删除学生信息
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void deleteStuInfo(node *pr){
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node *s=pr->next;
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pr->next=s->next;
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s->next=NULL;
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free(s);//释放结点空间
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}
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//退出程序
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void goodBye(){
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system("cls");
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printf("欢迎下次使用~\n");
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exit(0);//结束程序
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} |
