C语言学生信息管理系统(附源码)

1、实用学生信息管理系统文案绘录朮处廉盘序fi4t 辜kLJy记记社排卜记 :hAnA入飛Ji示 M输片剤fi捕记uliA#in clude#in clude#in clude #in clude #in clude#define LEN sizeof(struct stude nt)#define FORMAT %12d%-12s%-13.1f%-13.1f%-13.1f%-13.1fn#define DATA stui. nu m,stui. name,stui.ch in ese,stui.math,stui.e nglish,stui.sum/*定义学生成绩结构体*/struct stud

2、e nt int num;char n ame15; float chin ese; float math; float en glish; float sum;struct stude nt stu50;/*函数声明与简介*void in put(); void show();void order();void del();void modify();void menu(); void in sert();void total();void search(); int chcode();*主函*int mai n()int n;int log in = chcode();if(!logi n

3、)printf(登录失败!n”); return 0;printf(登录成功!n);menu();scan f(%d,&n);while( n)switch( n)case 0: exit(0);case 1: in put();break;case 2: search();break;case 3: del();break;case 4: modify();break;case 5: in sert();break;case 6: order();break;case 7: total();break;);break;case 8: show();break;default:printf(输

4、入有误，请重新输入: getch();menu();scan f(%d, &n);return 0;/*自定义函数实现菜单功能*/ void menu() system(cls);printf(tt|学生信息系统|n);|n);prin tf(tt|printf(tt| 0.退出系统 ttt |n);prin tf(tt| 1.输入记录ttt|n);prin tf(tt| 2.查找记录ttt|n);prin tf(tt| 3.删除记录ttt|n);prin tf(tt| 4.修改记录ttt|n);prin tf(tt| 5.插入记录ttt|n);prin tf(tt| 6.记录排序ttt|n)

5、;prin tf(tt| 7.记录个数ttt|n);prin tf(tt| 8.显示记录ttt|n);printf(tt|-|nn ”)；prin tf(tt请输入你的操作（0-8):”/* 录入学生信息*/void in put()int i,m=0;char ch2;FILE *fp;/*定义指针文件*/if(fp=fope n( ”stuData.tet”,”a+”)=NULL) printf(打开文件失败n”);return;while(!feof(fp)if(fread( &stum,LEN,1,fp)=1)m+;fclose(fp);if(m=0)printf(没有数据!n);el

6、sesystem(cls);show();if(fp=fope n(stuData.txt,wb)=NULL)printf(打开文件失败n); return;for(i=0;im;i+)fwrite(&stui,LEN,1,fp);printf(” 请确认(y/n):);scan f(%s,ch);while(strcmp(ch,Y)=O|strcmp(ch,y)=O)printf(学号:);scan f(%d，& stum. nu m);for(i=0;im;i+)if(stui. num=stum. num)printf(此学号已存在！);getch();fclose(fp);return

7、;printf(姓名：”)；sca nf(%s,stum. name);printf(语文成绩：);scan f(%f, &stum.chi nese);printf(数学成绩：);scan f(%f, &stum.math);printf(英语成绩：);scan f(%f, &stum.e nglish);stum.sum=stum.chi nese+stum.math+stum.e nglish; if(fwrite(&stum,LEN,1,fp)!=1)printf(保存失败!);getch();elseprintf(%s 已保存！ n,);m+;printf(是否继续

8、？ ( y/n):);scan f(%s,ch);fclose(fp);printf(操作成功！n);/*自定义查找*/void search()FILE *fp;int snu m,i,m=O;char ch2;if(fp=fope n(stuData.txt,rb)=NULL)printf(打开文件失败n”);return;while(!feof(fp)if(fread( &stum,LEN,1,fp)=1)m+;fclose(fp);if(m=0)printf(文件无记录!n);return;printf(-请输入需要查找的学生学号：);scan f(%d, &snu m);for(i=

9、0;im;i+)if(snum=stui. num)printf(学生数据已找到，确认显示？ ( y/n);scan f(%s,ch);if(strcmp(ch,Y)=O|strcmp(ch,y)=O)printf(学号姓名语文数学英语 总分tn);prin tf(FORMAT,DATA);break;if(i=m)printf(查找失败！ n”);/*自定义删除*/void del()FILE*fp;int snu m,i,j,m=0;char ch2;if(fp=fope n(stuData.tet,r+)=NULL)printf(打开文件失败 n);return;while(!feof(

10、fp)if(fread( &stum,LEN,1,fp)=1)m+;fclose(fp);if(m=0)printf(文件无记录!n ”);return;show();printf(”请输入需要删除的学生学号：);scan f(%d, &snu m);for(i=0;im;i+)if(snum=stui. num)printf(数据已经找到，是否确认删除？(y/n);scan f(%s,ch);if(strcmp(ch,Y)=O|strcmp(ch,y)=O)for(j=i;jm;j+)stuj=stui;m-;if(fp=fope n(stuData.txt,wb)=NULL)printf(

11、打开文件失败n”); return;for(j=0;jm;j+)if(fwrite(& stuj,LEN,1,fp)!=1)printf(对不起，保存失败！n ”);getch();fclose(fp);printf(删除成功！n);return;elseprintf(取消删除!n);return;printf(”没有找到要删除的信息！n);/* 自定义修改函数*/void modify。FILE *fp;int i,j,m=0,s num;if(fp=fope n( stuData.txt,r+)=NULL)printf(打开文件失败n); return; while(!feof(fp) i

12、f(fread( &stum,LEN,1,fp)=1) m+;if(m=0)printf(文件无记录!n ”);fclose(fp);return;show();printf(请输入你要修改的的学生学号n);printf(学号是：);scan f(%d, &snu m); for(i=0;im;i+)if(snum=stui.sum)printf(学生数据已找到，请修改!n);printf(n ame);scan f(%s,stui. name);prin tf(ch in ese);scan f(%f, &stui.chi nese);prin tf(math:);scan f(%f, &s

13、tui.chi nese);prin tf(e nglish:);scan f(%f, &stui.e nglish);prin tf(modify successful!);stui.sum=stui.ch in ese+stui.math+stui.e nglish; if(fp=fope n(stuData.txt,wb)=NULL)printf（保存失败！）; getch();fclose(fp);return;printf(”没有找到匹配信息”)；/*自定义插入函数*void in sert()FILE *fp;int i,j,k,m=0,s num;if(fp=fope n(stu

14、Data.txt,r+)=NULL) printf(打开文件失败n”); return;while(!feof(fp)if(fread( &stum,LEN,1,fp)=1)m+;if(m=0)printf(没有数据!n);fclose(fp);return;printf(请输入数据插入的位置：n); scan f(%d, &snu m);for(i=0;ii;j-)stuj+i=stuj;printf(请输入待插入数据信息.n); printf(学号);scan f(%d, &stui+1. num);for(k=0;km;k+)if(stuk. num=stum. num)printf(此

15、学号已存在！); getch();fclose(fp);return;printf(姓名);scan f(%s,stui+1. name);printf(语文成绩：);scan f(%f, &stui+1.chi nese);printf(数学成绩：);scan f(%f, &stui+1.math);printf(英语成绩：);scan f(%f, &stui+1.e nglish);stui+1.sum=stui+1.ch in ese+stui+1.math+stui+1.e nglish;if(fp=fope n( stuData.txt,wb)=NULL) printf(打开文件失败

16、n);return;for(k=0;k=m;k+)if(fwrite(&stuk,LEN,1,fp)!=1) printf(保存失败！); getch();return;printf(插入函数成功！”)； getch();fclose(fp);/*自定义排序函数*/void order()FILE *fp;struct stude nt t;int i=0,j=0,m=0;if(fp=fope n(stuData.txt,r+)=NULL) printf(打开文件失败!n ”);return;while(!feof(fp)if(fread( &stum,LEN,1,fp)=1)m+;fclos

17、e(fp);if(m=0)printf(无记录! n); return;if(fp=fope n(stuData.txt,wb)=NULL) printf(打开文件失败n”); return;for(i=0;im-1;i+)if(fwrite( &stui,LEN,1,fp)!=1)printf(%s 保存失败！ n); getch(); fclose(fp);printf(操作成功 n);*显示学生总人数*/void total() FILE *fp;int m=0;if(fp=fope n(stuData.txt,r+)=NULL) printf(打开文件失败n);return;while

18、(!feof(fp)if(fread( &stum,LEN,1,fp)=1)m+;if(m=0)printf(文件无记录!n ”);fclose(fp);return;printf(学生总数为 %d位！ n,m); fclose(fp);*显示学生信息*/void show() FILE *fp;int i,m=0;fp=fope n( stuData.txt,rb); while(!feof(fp)if(fread( &stum,LEN,1,fp)=1)m+;总分 tn);fclose(fp);printf(学号 姓名语文 数学 英语for(i=0;im;i+)prin tf(FORMAT,DATA);int chcode() char pw50,ch;c