学生成绩管理系统代码c语言编写集团文件发布号：（9816-UATWW-MWUB-WUNN-INNUL-DQQTY-C程序学生管理系统/* Note:Your choice is C IDE */ #include"stdio.h"#include"stdlib.h"#include"string.h"typedef struct student//定义学生{char name[10];int number;char sex[2];int math;int eglish;int clanguge;int average;}student;typedef struct unit//定义接点{student date;struct unit *next;}unit;unit* build()//建立链表并返回指针{unit *p;if((p=(unit*)malloc(sizeof(unit)))==NULL){ printf("=>初始化失败！");return 0;}else{p->next=NULL;p->date.number=0;//头结点存放学生人数 printf("初始化成功！\n");return p;}}void add(unit *head)//增加学生{unit *p,*q;int m,n=0;q=head->next;p=(unit*)malloc(sizeof(unit));printf("=>请输入新生姓名！\n");gets(p->);fflush(stdin);printf("=>请输入学号！\n");while(n==0){scanf("%d",&m);fflush(stdin);if(q==NULL) n=1;while(q){if(q->date.number==m){printf("=>你输入的学号与已有同学的学号相同，请重新输入！\n");q=head->next;break;}else{q=q->next;if(q==NULL) n=1;}}}p->date.number=m;printf("=>请输入性别！\n");gets(p->date.sex);fflush(stdin);printf("=>请输入数学成绩\n");scanf("%d",&m);fflush(stdin);p->date.math=m;printf("=>请输入英语成绩\n");scanf("%d",&m);fflush(stdin);p->date.eglish=m;printf("=>请输入c语言成绩\n");scanf("%d",&m);fflush(stdin);p->date.clanguge=m;p->date.average=(p->date.math+p->date.eglish+p->date.clanguge);q=head->next;head->next=p;p->next=q;head->date.number++;}void deletion(unit *head)//删除一名学生{unit *p=head->next,*q=head;char N[10];printf("=>请输入你想删除的学生姓名！\n");gets(N);fflush(stdin);if(p==NULL)printf("=>系统无学生可删除！\n");while(p){if(strcmp(p->,N)==0){q->next=p->next;head->date.number--;printf("=>删除%s成功！\n",p->);free(p);break;}else{p=p->next;q=q->next;if(p==NULL)printf("=>你要删除的学生不存在,删除失败！\n");}}}int display(unit *head)//显示学生信息{unit *p=head->next;int m,n=0;char N[10];if(p==NULL){printf("=>系统无学生！\n");return 0;}while(n==0){printf("************************************************** ****************************\n");printf("=>请选择你的操作！\n");printf("=>\t\t\t1.显示所有\t2.按姓名查找\n\t\t\t3.按学号查找\t4.返回主菜单\n");scanf("%d",&m);fflush(stdin);switch(m){case 1:printf("\n=>该系统拥有%d名学生！\n\n",head->date.number);p=head->next;printf("\t姓名\t学号\t性别\t数学\t英语\tc语言\t综合\n\n");while(p){printf("\t%s\t%d\t%s\t%d\t%d\t%d\t%d\n",p->,p->date.number,p->date.sex,p->date.math,p->date.eglish,p->date.clanguge,p->date.average);p=p->next;}break;case 2:printf("=>请输入查找姓名！\n");gets(N);fflush(stdin);p=head->next;while(p){if(strcmp(p->,N)==0){printf("\t姓名\t学号\t性别\t数学\t英语\tc语言\t综合\n");printf("\t%s\t%d\t%s\t%d\t%d\t%d\t%d\n",p->,p->date.number,p->date.sex,p->date.math,p->date.eglish,p->date.clanguge,p->date.average);break;}else{p=p->next;if(p==NULL)printf("=>你要查的学生不存在！");}}break;case 3: printf("=>请输入查找学号！\n");scanf("%d",&m);fflush(stdin);p=head->next;while(p){if(p->date.number==m){printf("\t姓名\t学号\t性别\t数学\t英语\tc语言\t综合\n");printf("\t%s\t%d\t%s\t%d\t%d\t%d\t%d\n",p->,p->date.number,p->date.sex,p->date.math,p->date.eglish,p->date.clanguge,p->date.average);break;}else{p=p->next;if(p==NULL)printf("=>你要查的学生不存在！\n");}}break;case 4:n=1;break;}}return 1;}int range(unit *head)//排序{unit *p=head,*q=head->next;int n,i,m=head->date.number;printf("************************************************** *****************************\n");printf("\t\t\t1.按学号\t2.按成绩\n\n");printf("=>请选择操作！\n》");scanf("%d",&n);fflush(stdin);if(q==NULL){ printf("=>无学生可排序！\n");return 0;}switch(n){case 2:for(i=0;i<m;i++)//按总分排序{p=head;q=head->next;while(q->next){if((q->date.average)<(q->next->date.average)){p->next=q->next;p=p->next;q->next=p->next;p->next=q;}else{p=p->next;q=q->next;}}}break;case 1:for(i=0;i<=m;i++)//按学号排序{p=head;q=head->next;while(q->next){if((q->date.number)>(q->next->date.number)){p->next=q->next;p=p->next;q->next=p->next;p->next=q;}else{p=p->next;q=q->next;}}}break;}printf("=>排序成功！\n");return 1;}void menu(){printf("\n********************************* 主菜单***************************************\n");printf("\t\t\t1.新建系统\t2.添加学生\n\t\t\t3.删除学生\t4.查看信息\n\t\t\t5.排列顺序\t6.读取信息\n\t\t\t7.保存信息\t8.退出系统\n");printf("=>请选择你的操作！\n");}int save(unit *head)//保存{FILE *fp;unit *p;p=head;if((fp=fopen("d:\\学生","wb+"))==NULL){printf("=>保存失败！");return 0;}while(p){fwrite(&(p->date),sizeof(student),1,fp);p=p->next;}printf("=>保存成功！");fclose(fp);return 1;}unit* read()//读入系统学生信息{int i;unit *p,*q,*head;FILE *fp;if((head=(unit*)malloc(sizeof(unit)))==NULL){ printf("=>开辟空间失败！");exit(1);}else{head->next=NULL;head->date.number=0;//头结点存放学生人数}q=head;if((fp=fopen("d:\\学生","rb"))==NULL){printf("=>系统无学生！\n");return 0;}fread(&(q->date),sizeof(student),1,fp);for(i=0;i<head->date.number;i++){if((p=(unit*)malloc(sizeof(unit)))==NULL){ printf("=>读值失败！");exit(1);}fread(&(p->date),sizeof(student),1,fp);p->next=q->next;q->next=p;}fclose(fp);return head;}void main(){int m=0,n, i;unit *head;printf("******************************************************* *************************\n\n");printf("\t\t\t* 欢迎使用学生成绩管理系统 * \n");printf("\n\t\t\t\t\t\t\t\t编译员：岳英明\n\n"); printf("=>正在读取系统信息......\n");if((head=read())==0){printf("=>是否新建\n");printf("\t\t\t是（1）\t\t否（2）\n");scanf("%d",&i);fflush(stdin);if(i==1)head=build();else if(i==2)exit(1);}elseprintf("=>信息导入成功！");while(m==0){menu();scanf("%d",&n);fflush(stdin);switch(n){case 1: head=build();break;case 2:add(head);break;case 3:deletion(head);break;case 4:display(head);break;case 5: range(head);break;case 6:head=read();if(head!=0) printf("=>读取存盘成功！\n");break;case 7:save(head);break;case 8:m=1;break;}}}。