学生成绩管理系统代码c语言编写

1、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 name10;int number;char sex2;int math;int eglish;int clanguge;int average; student;typedef struct unit / 定义接点student date;struct unit * next;

2、 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;unit *p, *q;int m,n =0;q=head-> next;p=(unit *)malloc( sizeof (unit);printf(&

3、quot;=>请输入新生姓名！ n");gets(p -> date . name);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->

4、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-

5、> 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

6、(unit *head)/ 删除一名学生(unit * p=head-> next, *q=head;char N10;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 ->date . name,N)=0)(q-> next =p-> next;head-> date . number-;printf("=>删除城功！ n” ,p-&g

7、t;date . name);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 N10;if (p=NULL)(printf("=>系统无学生！ n");return 0;while (n =0)(printf( "*m”)；printf("=&g

8、t;请选择你的操作！n");printf( "=>ttt1. 显示所有t2.按姓名查找nttt3. 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 dg学生！nn" ,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 nn");while (p)(printf( &

9、quot;t%st%dt%st%dt%dt%dt%dn" ,p -> date. name,p-> date . numb er,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 (s

10、trcmp(p ->date. name,N)=0)(printf( "t姓名t学号t性另叭t数学t英语tc语言t 综合n");printf( "t%st%dt%st%dt%dt%dt%dn" ,p -> date. name,p-> date . numb er,p -> date . sex,p ->date . math,p-> date. eglish,p ->date . clanguge,p -> date. average); break ; else(p=p-> next;if (p

11、=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性另叭t数学t英语tc语言t 综合n");printf( "t%st%dt%st%dt%dt%dt%dn" ,p -> date. na

12、me,p-> date . numb er,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)/ 排序按成绩nn");");unit * p=hea

13、d, * q=head-> next;int n,i,m =head->date . number;printf("*5，);printf( "ttt1.按学号 t2.printf("=>请选择操作！ n » scanf( "%d", &n);fflush(stdin);if (q=NULL)n");( printf("=>无学生可排序！ return 0;switch (n)(case 2: for (i =0;i <m;i +)/ 按总分排序(p=head;q =head-

14、> next; while (q -> next)( if (q -> date. average) <(q -> next -> datep-> 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(. av

15、erage)number)(q -> date. number)>(q ->next -> date.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(M*n"主菜单）;printf（ "ttt1. 新建系统t2.添加学生nttt3. 删除学生t

16、4.查看信 息nttt5.排列顺序t6.读取信息nttt7.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( 学生”，侦b+") =NULL)(printf("=> 保存失败！");return 0;while (p)(fwrite( &(p->date), sizeof (student),1,fp);p =p-> next;printf( "=

17、> 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( 学生"，"rb" ) =NULL)(

18、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(*5*5*nn")；printf( "ttt*欢迎使用学生成绩管理系统printf( &quo