学生信息管理系统c语言 学生信息管理系统c语言源代码

关于学生信息管理系统c语言，学生信息管理系统c语言源代码这个很多人还不知道，今天琪琪来为大家解答以上的问题，现在让我们一起来看看吧！

1、#include#include#include#include#define N 200int input(struct Student stu[N]);void save(struct Student stu[N],int n);int load(struct Student stu[N]);void output(struct Student stu[N],int n);int insert(struct Student stu_save[],int n);void sort(struct Student stu_save[],int n);void find(struct Student stu_save[],int n);int delete_stu(struct Student stu_save[],int n);typedef struct Student{char num[20];char name[20];char sex;int age;float score[3];float tolscore;float ave;}STU;int main(){int total=0,a;STU stu[N];printf("☆☆☆☆☆学籍管理系统☆☆☆☆☆\n\n");do{printf("\n**********************************\n");printf("1-导入学生信息\n2-加载学生信息\n3-保存学生信息\n4-按学号插入学生\n5-给学生排序\n6-查找学生\n7-删除学生\n8-输出当前学生数据\n9-退出\n");printf("**********************************\n");printf("请按键选择：");scanf("%d",&a);switch(a){case 1:total=input(stu);break;case 2: total=load(stu);break;case 3:save(stu,total);break;case 4: total+=insert(stu,total);break;case 5:sort(stu,total);break;case 6:find(stu,total);break;case 7:total-=delete_stu(stu,total);break;case 8:output(stu,total);break;case 9:exit(0);break;default:printf("输入错误，请重新输入！\n");break;}//system("cls");}while(1);}int input(struct Student stu[]){int i,j,n;float sum;printf("请输入要导入的学生人数\n");scanf("%d",&n);printf("请输入学生的学号、姓名、性别、年龄及三门课成绩\n");for(i=0;i{scanf("%s",stu[i].num);scanf("%s",stu[i].name);scanf(" %c",&stu[i].sex); //%c前的空格用于接收上一个字符串后的空格、回车、制表符，etcscanf("%d",&stu[i].age);sum=0;for(j=0;j{scanf("%f",&stu[i].score[j]);sum+=stu[i].score[j];}stu[i].tolscore=sum;stu[i].ave=sum/3.0f;}return (n);}void save(struct Student stu[],int n){FILE *fp;int i;char filename[20];printf("请输入文件名:");scanf("%s",filename);if(strchr(filename,'.')==NULL)strcat(filename,".dat");if((fp=fopen(filename,"wb"))==NULL){printf("Cannot open this file\n");system("pause");return;}fwrite(&n,sizeof(int),1,fp);for(i=0;ifwrite(&stu[i],sizeof(struct Student),1,fp);fclose(fp);printf("保存成功!");system("pause");return;}int load(struct Student stu_save[]){FILE *fp;int i,n;char filename[20];printf("请输入要加载的文件名: ");//getchar();scanf("%s",filename);// gets(filename);if(strchr(filename,'.')==NULL)strcat(filename,".dat");if((fp=fopen(filename,"rb"))==NULL){printf("Cannot open this file\n");system("pause");return 0;}fread(&n,sizeof(int),1,fp);for(i=0;ifread(&stu_save[i],sizeof(struct Student),1,fp);fclose(fp);system("cls");printf("文件加载成功!数据如下");output(stu_save,n);return n;}void output(struct Student stu_save[],int n){int i,j;// system("cls");printf("\n学号\t姓名\t性别\t年龄\t成绩一\t成绩二\t成绩三\t总分\t平均分\n");for(i=0;i{printf("%s\t",stu_save[i].num);printf("%s\t",stu_save[i].name);printf("%c\t",stu_save[i].sex);printf("%d\t",stu_save[i].age);for(j=0;jprintf("%g\t",stu_save[i].score[j]);printf("%g\t",stu_save[i].tolscore);printf("%.2f",stu_save[i].ave);putchar(10);}system("pause");return;}int insert(struct Student stu_save[],int n){int i,j,num=0;float sum=0;struct Student s;char flag;if(n>200){printf("空间已满，无法插入！\n");return 0;}// load(stu_save,n-1);do{printf("\n请依次输入学号、姓名、性别、年龄及三门课成绩\n");scanf("%s",s.num);scanf("%s",s.name);scanf(" %c",&s.sex); //%c前的空格用于接收上一个字符串后的空格、回车、制表符，etcscanf("%d",&s.age);for(j=0;jscanf("%f",&s.score[j]);sum=0;for(j=0;jsum+=s.score[j];s.tolscore=sum;s.ave=sum/3;num++;for(i=n+num-1;strcmp(stu_save[i-1].num,s.num)>0&&i>0;i--)stu_save[i]=stu_save[i-1];stu_save[i]=s;printf("插入成功!");fflush(stdin);do{printf("继续插入？(y/n)");flag=getch();}while(flag!='y'&&flag!='n');}while(flag=='y');system("pause");//save(stu_save,n);return num;}void sort(struct Student stu_save[],int n){int a,i,j;struct Student t;system("cls");printf("\n1-按序号排序\n2-按成绩排序\n请选择：");scanf("%d",&a);while(a!=1&&a!=2){printf("输入有误，请重新输入！\n");scanf("%d",&a);}//load(stu_save,n);if(a==1){for(i=0;ifor(j=0;j{if(strcmp(stu_save[j].num,stu_save[j+1].num)>0){t=stu_save[j];stu_save[j]=stu_save[j+1];stu_save[j+1]=t;}}}else{for(i=0;ifor(j=0;j{if(stu_save[j].ave{t=stu_save[j];stu_save[j]=stu_save[j+1];stu_save[j+1]=t;}}}// save(stu_save,n);printf("排序成功！\n");output(stu_save,n);return;}void find(struct Student stu_save[],int n){char ch;do{int i,j,w=1;char search[20];//load(stu_save,n);printf("请输入学生的学号或姓名");scanf("%s",search);for(i=0;i{if(strcmp(stu_save[i].num,search)==0||strcmp(stu_save[i].name,search)==0){printf("查找成功，该学生的信息为：\n");printf("%s\t",stu_save[i].num);printf("%s\t",stu_save[i].name);printf("%c\t",stu_save[i].sex);printf("%d\t",stu_save[i].age);for(j=0;jprintf("%g\t",stu_save[i].score[j]);printf("%g\t",stu_save[i].tolscore);printf("%.2f",stu_save[i].ave);putchar(10);w=0;break;}}if(w)printf("查找失败\n");do{printf("\n按Y继续查找，按N返回上级菜单\n");ch=getch();}while(ch!='y'&&ch!='n');if(ch=='n')return;}while(ch=='y');}int delete_stu(struct Student stu_save[],int n){int i,w=1;char search[20];// load(stu_save,n);printf("\n请输入要删除学生的姓名或学号\n");scanf("%s",search);for(i=0;iif(strcmp(stu_save[i].num,search)==0||strcmp(stu_save[i].name,search)==0){w=0;break;}if(w){printf("无此学生！\n");return 0;}for(;istu_save[i]=stu_save[i+1];printf("删除成功！\n");// save(stu_save,n-1);return 1;}之前随便写的 忘了有没有调试 有问题再私信找我 采纳哦~~//这是我以前的课程设计，。

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