学生成绩管理系统源代码.doc

#include <stdio.h>#include <string.h>#include <stdlib.h>#include <windows.h>struct student /结构体定义int num; char name10;char birthday10;int Cyuyan; int shujujiegou;struct student *next; struct student *creat_by_input();struct student *get_last_student(struct student *head);struct student *Print_menu_main() /主菜单printf(" *n");printf(" | 1.输入学生信息 | n"); printf(" | 2.输出学生信息 | n"); printf(" | 3.查找学生信息 | n"); printf(" | 4.修改学生信息 | n"); printf(" | 5.插入学生信息 | n"); printf(" | 6.删除学生信息 | n"); printf(" | 7.排序学生信息 | n"); printf(" | 0.退出系统 | n"); printf(" |_ _ _ _ _ _ _ _ _ _ _ _ _ | n");struct student *print_table_head() printf("+-+-+-+-+-+n"); printf("| 学号 | 姓名 | 出生日期 | c成绩 |数据结构成绩 |n"); printf("+-+-+-+-+-+n");struct student *print_table_row(struct student *p)printf("|%10d|%10s|%10s|%10d|%10d|n",p->num,p->name,p->birthday,p->Cyuyan,p->shujujiegou);void print_table_bottom()printf("+-+-+-+-+-+n");struct student * Creat_stu_record() /建立链表struct student *plaststu=NULL,*pnewstu;char continue_input='N' struct student *head=NULL;while(1)if(head=NULL)head=creat_by_input();print_table_head();print_table_row(head);print_table_bottom();else pnewstu=creat_by_input();print_table_head();print_table_row(pnewstu);print_table_bottom();plaststu=get_last_student(head);plaststu->next=pnewstu;printf("是否继续输入学生信息？(Y 继续，N 返回菜单)n");getchar();continue_input=getchar();if(continue_input='n'|continue_input='N') system("cls");Print_menu_main();break;return head;struct student *creat_by_input() struct student *pnewstu=(struct student *)malloc(sizeof(struct student);printf("请输入学生信息n"); printf("学号:");scanf("%d",&pnewstu->num); printf("姓名:");scanf("%s",pnewstu->name); printf("出生年月:");scanf("%s",pnewstu->birthday);printf("请输入学生成绩n");printf("C语言:");scanf("%d",&(pnewstu->Cyuyan);printf("数据结构:");scanf("%d",&(pnewstu->shujujiegou); pnewstu->next=NULL; return pnewstu;struct student *get_last_student(struct student *p ) if(p->next=NULL)return p;else return get_last_student(p->next);void Print_Stu_Doc(struct student *head)struct student *p;char r;print_table_head();if(head=NULL)printf("n No Recordsn");for(p=head;p;p=p->next)printf("|%10d|%10s|%10s|%10d|%10d|n",p->num,p->name,p->birthday,p->Cyuyan,p->shujujiegou);printf("+-+-+-+-+-+n");printf("(按Enter键返回主菜单)n");getchar();r=getchar();if(r!='1')system("cls");Print_menu_main();elsesystem("cls");Print_menu_main();struct student *search_by_name(struct student *head)/按姓名查找char name10;struct student *p=head;char continue_input;/*int isfound=0;*/printf("请输入要查找的姓名：");scanf("%s",name);printf("查找%sn",name);print_table_head();while(p!=NULL) if(strcmp(p->name,name)=0) print_table_row(p);p=p->next;/*isfound=1; */break;p=p->next;print_table_bottom();printf("是否继续查找?(Y 继续；N 返回主菜单)n");getchar();continue_input=getchar();if(continue_input='n'|continue_input='N')system("cls");Print_menu_main();else search_by_name(head);struct student * search_by_id(struct student *head)/按学号查找int id;struct student *p=head;char continue_input;/*int isfound=0;*/printf("请输入要查找的学号：");scanf("%d",&id);printf("查找%dn",id);print_table_head();while(p!=NULL) if(p->num=id) print_table_row(p);p=p->next;/*isfound=1;*/break;p=p->next;print_table_bottom();printf("是否继续查找？(Y 继续；N 返回主菜单)n");getchar();continue_input=getchar();if(continue_input='n'|continue_input='N')system("cls");Print_menu_main();else search_by_id(head);return head; struct student*modify_record_by_id(struct student*head)/按学号修改struct student *p=head;int id;char continue_input;printf("请输入要修改的学生的学号：n");scanf("%d",&id);while(p!=NULL)if(p->num=id)break;p=p->next;if(p=NULL) printf("抱歉，没有学号为%d的学生n",id);else printf("请输入学生信息:n"); printf("学号:");scanf("%d",&(p->num); printf("姓名:");scanf("%s",&(p->name); printf("出生年月:");scanf("%s",&(p->birthday);printf("请输入学生成绩：n");printf("C语言:");scanf("%d",&(p->Cyuyan);printf("数据结构:");scanf("%d",&(p->shujujiegou);print_table_head();print_table_row(p);print_table_bottom();printf("继续修改学生信息吗?Y 继续；N 返回主菜单n");getchar();continue_input=getchar();if(continue_input='y'|continue_input='Y')creat_by_input();else system("cls");Print_menu_main();return head;struct student*modify_record_by_name(struct student*head)/按姓名修改struct student*p=head;char name10;char continue_input;printf("请输入要修改的学生的姓名：n");scanf("%s",name);while(p!=NULL)if(strcmp(p->name,name)=0) break;p=p->next;if(p=NULL) printf("抱歉，没有姓名为%s的学生n",name);else printf("请输入学生信息:n"); printf("学号:");scanf("%d",&(p->num); printf("姓名:");scanf("%s",&(p->name); printf("出生年月:");scanf("%s",&(p->birthday);printf("请输入学生成绩：n");printf("C语言:");scanf("%d",&(p->Cyuyan);printf("数据结构:");scanf("%d",&(p->shujujiegou); print_table_head();print_table_row(p);print_table_bottom();printf("继续修改学生信息吗?Y 继续；N 返回主菜单n");getchar();continue_input=getchar();if(continue_input='y'|continue_input='Y')creat_by_input();elsesystem("cls");Print_menu_main();return head;struct student *insert_record(struct student *head)/插入struct student *ptr1;struct student *ptr,*stud;struct student *ptr2=head; char continue_input='N'int id;printf("请输入一个学号，在此之前插入学生信息:");scanf("%d",&id); stud=creat_by_input();ptr=stud;if(head=NULL)head=ptr;head->next=NULL;else if(head->num=id)ptr->next=head;head=ptr;elsewhile(ptr2!=NULL) ptr1=ptr2;ptr2=ptr1->next;if(ptr2->num=id)ptr1->next=ptr;ptr->next=ptr2;break; print_table_head();print_table_row(ptr);print_table_bottom();printf("是否继续插入学生信息?(Y 继续 N 返回主菜单)n");getchar();continue_input=getchar();if(continue_input='y'|continue_input='Y') return insert_record(head);else system("cls");Print_menu_main(); return head;struct student *Delete_record_by_id( struct student *head)/按学号删除struct student *p=head,*ppre=NULL;int id;char continue_input;printf("请输入要删除的学号:");scanf("%d",&id);while(p!=NULL)if(p->num=id) break;p=p->next;if(p=NULL) printf("抱歉，没有该学号的学生信息！n"); else printf("确定要删除学号为%d的学生的信息吗？（Y 确定；N 返回主菜单）n",p->num);getchar(); continue_input=getchar(); if(continue_input='y'|continue_input='Y') ppre=head;if(ppre=p)head=p->next;printf(" n"); free(p);elsewhile(ppre!=NULL)if(ppre->next=p)ppre->next=p->next;free(p);break;ppre=ppre->next; printf("删除成功！"); / Print_menu_main();printf("继续删除学生信息吗？(Y 继续；N 返回主菜单)");getchar();continue_input=getchar(); if(continue_input='y'|continue_input='Y') Delete_record_by_id(head); else system("cls");Print_menu_main();return head; return 0; struct student *Delete_record_by_name( struct student *head)/ 按姓名删除struct student *p=head,*ppre=NULL;char name10;char continue_input;printf("请输入要删除的姓名:");scanf("%s",name);while(p!=NULL)if(strcmp(p->name,name)=0) break;p=p->next; if(p=NULL) printf("抱歉，没有该姓名的学生信息！n");goto end;elseprintf("确定要删除姓名为%s的学生的信息吗？（Y 确定；N 返回主菜单）",p->name);printf("n");getchar();continue_input=getchar();if(continue_input='y'|continue_input='Y') ppre=head; if(ppre=p) head=p->next; free(p); else while(ppre!=NULL) if(ppre->next=p) ppre->next=p->next; free(p); break; ppre=ppre->next; printf("删除成功！"); /else Print_menu_main();end: printf("继续删除学生信息吗？(Y 继续；N 返回主菜单)"); printf("n"); getchar(); continue_input=getchar(); if(continue_input='Y'|continue_input='y') Delete_record_by_name(head); else system("cls"); Print_menu_main();return head; return 0; struct student * Sorting_record_by_id(struct student *head)/按学号排序int i=0,j,k,r;struct student *pt1,*pt2,*pt,m;if(head=NULL)printf("现在无同学记录n");printf("(按Enter键返回主菜单)n");getchar();r=getchar();if(r!='1')system("cls");Print_menu_main();elsesystem("cls");Print_menu_main();elsept1=head;pt2=head->next;for(pt=head;pt;pt=pt->next)i+;for(j=1;j<i;j+)pt1=head; pt2=head->next;for(k=1;k<i-j+1;k+)if(pt1->num>pt2->num)m=*pt1; *pt1=*pt2;*pt2=m;pt2->next=pt1->next;pt1->next=pt2;pt1=pt2;pt2=pt1->next;print_table_head();for(pt=head;pt;pt=pt->next)printf("|%10d|%10s|%10s|%10d|%10d|n",pt->num,pt->name,pt->birthday,pt->Cyuyan,pt->shujujiegou);printf("+-+-+-+-+-+n");return head;int main()struct student *head=NULL;struct student *p;int choice;int select;char m;char r;system("color e");printf(" n");printf(" n");printf(" 欢迎使用学生成绩管理系统！ n");printf(" n");printf("n");printf(" n");printf(".n"); printf("请按照提示信息完成操作n");Print_menu_main();printf(" n");printf(":n");printf(" n");printf("* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *n");while(choice!=0)printf("请选择所要执行的操作：n");start:if(scanf("%d",&choice)if(choice>7|choice<0)printf("请输入0到7的数字,选择所要执行的操作：n");goto start;elsegoto next;if(scanf("%c",&m)printf("请输入0到7的数字,选择所要执行的操作：n");goto start;next:switch(choice)case 1:system("cls");head=Creat_stu_record();break;case 2:system("cls");Print_Stu_Doc(head);break;case 3:system("cls");printf("请选择查找方式：1 按姓名查找； 2 按学号查找；3 返回主菜单");printf("n");scanf("%d",&select);switch(select)case 1:search_by_name(head);break;case 2:search_by_id(head);break;case 3:system("cls");Print_menu_main();break;break;case 4:system("cls");printf("请输入修改方式：1 按学号修改；2 按姓名修改; 3 返回主菜单");printf("n");scanf("%d",&select);switch(select)case 1:system("cls");modify_record_by_id(head);break;case 2:system("cls");modify_record_by_name(head);break;case 3:system("cls");Print_menu_main();break;break;case 5:system("cls");head=insert_record(head);break;case 6:system("cls");printf("请输入删除方式：1 按学号删除；2 按姓名删除; 3 返回主菜单n");scanf("%d",&select); switch(select)case 1:head=Delete_record_by_id(head);break;case 2:head=Delete_record_by_name(head);break;case 3:Print_menu_main();break;break;case 7:system("cls");Sorting_record_by_id(head);printf("(按Enter键返回主菜单)n");getchar();r=getchar();if(r!='1')system("cls");Print_menu_main();elsesystem("cls");Print_menu_main();break;break;case 0:system("cls");printf(" n");printf("-n");printf(" - - - - - 谢谢使用 - - - - -！n"); printf(" n"); break;