学生信息管理系统C语言

1、#i nclude stdio.h#include string.h#i nclude stdlib.h#defi ne M 10int num;/ 计数struct stude ntchar xuehao10; / 学号char name10;/ 姓名char sex8;/ 性别char birth20; / 出生年月char jiguan30; / 籍贯char tel30;/ 电话int score; / 成绩stude ntM;char headline80;/ 全局变量void read1()FILE *fp;/文件指针int i=0;fp=fope n( jz0112.txt,r)

2、;/ 打开文件if(fp=NULL)printf(不能找到文件，请检查!n);return;fgets(headline,80,fp);/ 读第一行的函数puts(headli ne);while(!feof(fp)/判断文件是否结束for(i=0;iM;i+)fsca nf(fp,%s%s%s%s%s%s%d,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,&stude nti.score);i+; /fscanf读两个空白字符之间的字符num=i;

3、fclose(fp);/ 关闭文件for(i=0;i nu m;i+)prin tf(%10s%-8s%6s%16s%16s%16s%6dn,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score);void fin d_xuehao()/ 按学号查询char xuehao10;int i;int flag=0;printf(请输入学号：);scan f(%s,xuehao);for(i=0;i nu m;i+)if(strcm

4、p(xuehao,stude nti.xuehao)=0)flag=1;prin tf(%-10s%-8s%6s%16s%16s%16s%6dn,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score); break;if(flag=0)printf(n 无此信息 n);void find_name()/ 按姓名查询char n ame8;int i;int flag=O;printf(请输入姓名：);scan f(%s, na

5、me);for(i=0;i nu m;i+)if(strcmp( name,stude nti. name)=O)flag=1;prin tf(%-10s%-8s%6s%16s%16s%16s%6dn,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score); break;if(flag=0)printf(n 无此信息 n);void all()/显示全部int i;for(i=0;iM;i+)prin tf(%-10s%-8s

6、%6s%16s%16s%16s%6dn,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score); void fin d()int b;printf(n*n);printf（ 1按学号查询2按姓名查询3显示全部4退出n）;prin tf(n*printf(请选择:);scan f(%d,&b); switch(b)case 1:fi nd_xuehao();break;case 2:find_n ame();break;case

7、 3:all();break;case 4:return;void sort_name()/ 按姓名排序char nameM12,t12;int i,j;for(i=0;iM;i+)strcpy (n amei,stude nti. name);for(j=1;jM-1;j+)for(i=0;i0)strcpy(t, namei);strcpy( namei, namei+1);strcpy( namei+1,t);for(i=0;iM;i+)for(j=0;jM;j+)if(strcmp( namei,stude ntj. name)=0)prin tf(%-10s%-8s%6s%16s%1

8、6s%16s%6dn,stude ntj.xuehao,stude ntj. name,stude ntj.sex,stude ntj.birth,stude ntj.jigua n, stude ntj.tel,stude ntj.score);void sort_score()/ 按分数排序int i,j,t,aM;for(i=0;iM;i+)ai=stude nti.score;for(j=1;jM-1;j+)for(i=0;iM-j;i+)if(aiai+1)t=ai;ai=ai+1;ai+1=t;for(i=0;iM;i+)for(j=0;jM;j+)if(ai=stude ntj.

9、score)prin tf(n%-10s%-8s%6s%14s%16s%16s%6d,stude ntj.xuehao,stude ntj. name,stude ntj.sex,stude ntj.birth,stude ntj.jigua n, stude ntj.tel,stude ntj.score);/排序void sort() int b;prin tf(n*printf（ 1按姓名排序2按分数排序3退出n）;prin tf(n*printf(请选择:);scan f(%d,&b);switch(b)case 1:sort_ name();break;case 2:sort_sco

10、re();break;case 3:retur n;void add()/ 添加int i;int flag=O;char add10;printf(请输入你要修改的学生的学号：);sca nf(%s,add);for(i=0;i nu m;i+)if(strcmp(stude nti.xuehao,add)=0)flag=1;printf(此信息已存在，不能添加！n);prin tf(%10s%-8s%6s%14s%16s%16s%6d,stude nti.xuehao,stude nti. name,stude nti.sex, stude nti.birth,stude nti.jigu

11、a n, stude nti.tel,stude nti.score);break;if(flag=0)printf(n无此学生信息，请添加信息：)；sca nf(%s%s%s%s%s%s%d,stude ntnu m.xuehao,stude ntnu m. name,stude n t nu m.sex,stude ntnu m.birth,stude ntnu m.jigua n, stude nt nu m.tel,&stude ntnu m.score); nu m+;for(i=0;i nu m;i+)prin tf(n%-10s%-8s%6s%14s%16s%16s%6d,stu

12、de nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score);void Delete_name()/ 按姓名删除int i;int flag=O;char n ame10;printf(请输入要删除的姓名：);scan f(%s, name);for(i=0;i nu m;i+)if(strcmp(stude nti. name, name)=0)flag=1;for(;i nu m-1;i+)stude nti=stude nti+1;

13、printf(此信息存在，将被删除。n);for(i=0;i nu m-1;i+)prin tf(n%-10s%-8s%6s%14s%16s%16s%6d,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score);if(flag=0)printf(n无此学生信息，请确认！n);void Delete_xuehao()/ 按学号删除int i;int flag=0;char xuehao10;printf(请输入要删除的学号：);

14、scan f(%s,xuehao);for(i=0;i nu m;i+)if(strcmp(stude nti.xuehao,xuehao)=0)flag=1;for(;i nu m-1;i+)stude nti=stude nti+1;printf(此信息存在，将被删除。n);for(i=0;i nu m-1;i+)prin tf(n%-10s%-8s%6s%14s%16s%16s%6d,stude nti.xuehao,stude nti. name,stude nti.sex, stude nti.birth,stude nti.jigua n, stude nti.tel,stude

15、nti.score);if(flag=0)printf(n无此学生信息，请确认！n);/删除void Delete()int b;prin tf(n*printf（ 1按姓名删除2按学号删除3退出n）;prin tf(n*printf(请选择:);scan f(%d,&b);switch(b)case 1:Delete_ name();break;case 2:Delete_xuehao();break; case 3:retur n;/修改 void modify()int i;int flag=O;char modify10;printf(请输入你要修改的学生的学号：);sea nf(%s

16、,modify);for(i=0;i nu m;i+)if(strcmp(stude nti.xuehao,modify)=0)flag=1;printf(学号姓名性别出生年月 籍贯电话成绩n);prin tf(%-10s%-8s%6s%14s%16s%16s%6d,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score);break;if(flag=0)printf(n无此学生信息n);return;printf(n要修改学生

17、的姓名：n);prin tf(stude nti. name=);sca nf(%s,stude nti. name);printf(n要修改学生的性别：n);prin tf(stude nti.sex=);sca nf(%s,stude nti.sex);printf(n要修改学生的出生年月：n);prin tf(stude nti.birth=);sca nf(%s,stude nti.birth);printf(n要修改学生的籍贯：n);prin tf(stude nti.jigua n=);sca nf(%s,stude nti.jigua n);printf(n要修改学生的电话：n)

18、;prin tf(stude nti.tel=);sca nf(%s,stude nti.tel);printf(n要修改学生的成绩：n);prin tf(stude nti.score=);sea nf(%d,&stude nti.score);for(i=0;i nu m;i+)prin tf(n%-10s%-8s%6s%14s%16s%16s%6d,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score);void cla

19、ssify_male()/ 按男分类int i;FILE *fp;fp=fope n (male.txt,w);if (fp=NULL)printf(不能找到文件，请检查!);return ;fputs(headli ne,fp);for(i=0;i nu m;i+)if(strcmp(studenti.sex,男)=0)prin tf(n%-10s%-8s%6s%14s%16s%16s%6d,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude

20、 nti.score);fprin tf(fp,n%-10s%-8s%6s%14s%16s%16s%6d,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score); fclose(fp);void classify_female()/ 按女分类int i;FILE *fp1;fp仁 fope n( female.txt,w);if (fp1=NULL)printf(不能找到文件，请检查!);return;fputs(headli

21、 ne,fp1);for(i=0;i nu m;i+)if(strcmp(studenti.sex,女)=0)prin tf(n%-1Os%-8s%6s%14s%16s%16s%6d,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score);fprin tf(fp1,n%-10s%-8s%6s%14s%16s%16s%6d,stude nti.xuehao,stude nti. name,stude nti.sex,stude nti.birth,stude nti.jigua n, stude nti.tel,stude nti.score);fclose(fp1);void classify()/ 分类int b;prin tf(n*prin tf（ 1按男分类2按女分类3退出n）;prin tf(n*printf(请选择:);scan f(%d,&b);switch(b)case 1:classify_male();break