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1、C程序学生管理系统以下是用c语言编写的学生成绩管理系统的简单代码，可以用 vc运行(供参考)#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
2、 * 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;unit *p, *q;int m,n =0;q=head-> next;p=(unit *)malloc( sizeof (unit
3、);printf("=>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(
4、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
5、(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+;voi
6、d deletion(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
7、！ n” ,p->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
8、("=>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)
9、(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);p=p-> next;break ;case 2:printf("=> 请输入查找姓名！ n");gets(N);fflush(stdin);p =head-> next;while
10、 (p)(if (strcmp(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-> n
11、ext;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 ->
12、; 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 =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");");un
13、it * p=head, * 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=hea
14、d;q =head-> 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 -> nex
15、t)(if(. average)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nt
16、tt3. 删除学生t4.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;print
17、f( "=> 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"
18、 ) =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-> n
19、ext;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* n");printf( "ntttttttt编译员：吹吹风 nn");printf("=正在读取系统信息n");if (head =read() =0)(printf("=是否新建？ n");printf( "ttt 是(1) tt 否(2) n&qu
20、ot;);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;