學生信息管理系統(tǒng)C語言

1、#include "stdio.h"#include "string.h"#include "stdlib.h"#define M 10int num;/ 計數(shù)struct studentchar xuehao10;/ 學號char name10;/ 姓名char sex8;/ 性別char birth20;/ 出生年月char jiguan30;/ 籍貫char tel30;/ 電話int score;/ 成績studentM;char headline80;/全局變量void read1()FILE *fp;/文件指針int i=

2、0;fp=fopen("jz0112.txt","r");/打開文件if(fp=NULL)printf(" 不能找到文件，請檢查！n");return;fgets(headline,80,fp);/讀第一行的函數(shù)puts(headline);while(!feof(fp)/判斷文件是否結(jié)束/for(i=0;i<M;i+)fscanf(fp,"%s%s%s%s%s%s%d",studenti.xuehao,,studenti.sex,studenti.birth,studenti.ji

3、guan,studenti.tel,&studenti.score);i+;/fscanf讀兩個空白字符之間的字符num=i;fclose(fp);/關(guān)閉文件for(i=0;i<num;i+)printf("%-10s%-8s%6s%16s%16s%16s%6dn",studenti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,studenti.tel,studenti.score);void find_xuehao()/按學號查詢char xuehao10;int i;in

4、t flag=0;printf(" 請輸入學號： ");scanf("%s",xuehao);for(i=0;i<num;i+)if(strcmp(xuehao,studenti.xuehao)=0)flag=1;printf("%-10s%-8s%6s%16s%16s%16s%6dn",studenti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,studenti.tel,studenti.score); break;if(flag=0)pr

5、intf("n 無此信息 n");void find_name()char name8;/按姓名查詢int i;int flag=0;printf(" 請輸入姓名： ");scanf("%s",name);for(i=0;i<num;i+)if(strcmp(name,)=0)flag=1;printf("%-10s%-8s%6s%16s%16s%16s%6dn",studenti.xuehao,,studenti.sex,studenti.birth,st

6、udenti.jiguan,studenti.tel,studenti.score); break;if(flag=0)printf("n 無此信息 n");void all()/顯示全部int i;for(i=0;i<M;i+)printf("%-10s%-8s%6s%16s%16s%16s%6dn",studenti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,studenti.tel,studenti.score);void find()int b;prin

7、tf("n*n");printf(" 1 按學號查詢 2 按姓名查詢3 顯示全部4 退出 n");printf("n*n");printf(" 請選擇： ");scanf("%d",&b);switch(b)case 1:find_xuehao();break;case 2:find_name();break;case 3:all();break;case 4:return;void sort_name()/按姓名排序char nameM12,t12;int i,j;for(i=0;i&

8、lt;M;i+)strcpy(namei,);for(j=1;j<M-1;j+)for(i=0;i<M-j;i+)if(strcmp(namei,namei+1)>0)strcpy(t,namei);strcpy(namei,namei+1);strcpy(namei+1,t);for(i=0;i<M;i+)for(j=0;j<M;j+)if(strcmp(namei,)=0)printf("%-10s%-8s%6s%16s%16s%16s%6dn",studentj.xuehao,stude

9、,studentj.se x,studentj.birth,studentj.jiguan,studentj.tel,studentj.score);void sort_score()int i,j,t,aM;for(i=0;i<M;i+)ai=studenti.score;for(j=1;j<M-1;j+)for(i=0;i<M-j;i+)if(ai<ai+1)/按分數(shù)排序t=ai;ai=ai+1;ai+1=t;for(i=0;i<M;i+)for(j=0;j<M;j+)if(ai=studentj.score)printf("n

10、%-10s%-8s%6s%14s%16s%16s%6d",studentj.xuehao,,studentj.sex,studentj.birth,studentj.jiguan,studentj.tel,studentj.score);void sort()int b;/排序printf("n*n");printf(" 1 按姓名排序 2 按分數(shù)排序3 退出 n");printf("n*n");printf(" 請選擇： ");scanf("%d",&

11、;b);switch(b)case 1:sort_name();break;case 2:sort_score();break;case 3:return;void add()/添加int i;int flag=0;char add10;printf(" 請輸入你要修改的學生的學號：");scanf("%s",add);for(i=0;i<num;i+)if(strcmp(studenti.xuehao,add)=0)flag=1;printf(" 此信息已存在，不能添加！n");printf("%-10s%-8s%6

12、s%14s%16s%16s%6d",studenti.xuehao,,studenti.sex, studenti.birth,studenti.jiguan,studenti.tel,studenti.score);break;if(flag=0)printf("n 無此學生信息，請?zhí)砑有畔?");scanf("%s%s%s%s%s%s%d",studentnum.xuehao,,stude ntnum.sex,studentnum.birth,studentnum.jiguan,stu

13、dentnum.tel,&studentnum.score);num+;for(i=0;i<num;i+)printf("n%-10s%-8s%6s%14s%16s%16s%6d",studenti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,studenti.tel,studenti.score);void Delete_name()/按姓名刪除int i;int flag=0;char name10;printf(" 請輸入要刪除的姓名：");scan

14、f("%s",name);for(i=0;i<num;i+)if(strcmp(,name)=0)flag=1;for(;i<num-1;i+)studenti=studenti+1;printf(" 此信息存在，將被刪除。n");for(i=0;i<num-1;i+)printf("n%-10s%-8s%6s%14s%16s%16s%6d",studenti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,s

15、tudenti.tel,studenti.score);if(flag=0)printf("n 無此學生信息，請確認！n");void Delete_xuehao()/按學號刪除int i;int flag=0;char xuehao10;printf(" 請輸入要刪除的學號：");scanf("%s",xuehao);for(i=0;i<num;i+)if(strcmp(studenti.xuehao,xuehao)=0)flag=1;for(;i<num-1;i+)studenti=studenti+1;printf(

16、" 此信息存在，將被刪除。n");for(i=0;i<num-1;i+)printf("n%-10s%-8s%6s%14s%16s%16s%6d",studenti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,studenti.tel,studenti.score);if(flag=0)printf("n 無此學生信息，請確認！n");void Delete()int b;/刪除printf("n*n");printf(&q

17、uot; 1 按姓名刪除 2 按學號刪除3 退出 n");printf("n*n");printf(" 請選擇： ");scanf("%d",&b);switch(b)case 1:Delete_name();break;case 2:Delete_xuehao();break;case 3:return;void modify()/修改int i;int flag=0;char modify10;printf(" 請輸入你要修改的學生的學號：");scanf("%s",mod

18、ify);for(i=0;i<num;i+)if(strcmp(studenti.xuehao,modify)=0)flag=1;printf(" 學號 姓名 性別 出生年月 籍貫 電話 成績 n"); printf("%-10s%-8s%6s%14s%16s%16s%6d",studenti.xuehao,,studenti.sex, studenti.birth,studenti.jiguan,studenti.tel,studenti.score);break;if(flag=0)printf("n 無此學

19、生信息 n");return;printf("n 要修改學生的姓名： n");printf("=");scanf("%s",);printf("n 要修改學生的性別： n");printf("studenti.sex=");scanf("%s",studenti.sex);printf("n 要修改學生的出生年月：n");printf("studenti.birth=");s

20、canf("%s",studenti.birth);printf("n 要修改學生的籍貫： n");printf("studenti.jiguan=");scanf("%s",studenti.jiguan);printf("n 要修改學生的電話： n");printf("studenti.tel=");scanf("%s",studenti.tel);printf("n 要修改學生的成績： n");printf("stude

21、nti.score=");scanf("%d",&studenti.score);for(i=0;i<num;i+)printf("n%-10s%-8s%6s%14s%16s%16s%6d",studenti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,studenti.tel,studenti.score);void classify_male()/按男分類int i;FILE *fp;fp=fopen ("male.txt"

22、;,"w");if (fp=NULL)printf(" 不能找到文件，請檢查！");return ;fputs(headline,fp);for(i=0;i<num;i+)if(strcmp(studenti.sex,"男")=0)printf("n%-10s%-8s%6s%14s%16s%16s%6d",studenti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,studenti.tel,studenti.score);

23、 fprintf(fp,"n%-10s%-8s%6s%14s%16s%16s%6d",studenti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,studenti.tel,studenti.score);fclose(fp);void classify_female()int i;FILE *fp1;fp1=fopen("female.txt","w");/按女分類if (fp1=NULL)printf(" 不能找到文件，請檢查！&quo

24、t;);return;fputs(headline,fp1);for(i=0;i<num;i+)if(strcmp(studenti.sex,"女")=0)printf("n%-10s%-8s%6s%14s%16s%16s%6d",studenti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,studenti.tel,studenti.score);fprintf(fp1,"n%-10s%-8s%6s%14s%16s%16s%6d",stude

25、nti.xuehao,,studenti.sex,studenti.birth,studenti.jiguan,studenti.tel,studenti.score);fclose(fp1);void classify()/分類int b;printf("n*n");printf(" 1 按男分類2 按女分類3 退出 n");printf("n*n");printf(" 請選擇： ");scanf("%d",&b);switch(b)case 1:classify_male();break