學(xué)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(jì)數(shù)struct student char xuehao10; /學(xué)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=0; fp=fopen(jz0112.txt,r)

2、; /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;iM;i+) fscanf(fp,%s%s%s%s%s%s%d,studenti.xuehao,,studenti.sex, studenti.birth,studenti.jiguan,studenti.tel,&studenti.score); i+; /fscanf讀兩個(gè)空白字符之間的字符 num=i

3、; fclose(fp); /關(guān)閉文件 for(i=0;inum;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(xué)號查詢 char xuehao10; int i; int flag=0; printf(請輸入學(xué)號：); scanf(%s,xuehao); for(i=0;inum;i+) if(strcmp(xu

4、ehao,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) printf(n無此信息n); void find_name() /按姓名查詢 char name8; int i; int flag=0; printf(請輸入姓名：); scanf(%s,name); for(i

5、=0;inum;i+) if(strcmp(name,)=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) printf(n無此信息n);void all() /顯示全部 int i; for(i=0;iM;i+) printf(%-10s%-8s%6s%16s%16s%16s%6d

6、n,studenti.xuehao,,studenti.sex, studenti.birth,studenti.jiguan,studenti.tel,studenti.score); void find() int b; printf(n*n); printf( 1 按學(xué)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;

7、 case 4:return; void sort_name() /按姓名排序 char nameM12,t12; int i,j; for(i=0;iM;i+) strcpy(namei,); 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,)=0) printf(%-10s%-8s%6s%16s%16s%16s%6dn,s

8、tudentj.xuehao,,studentj.sex, studentj.birth,studentj.jiguan,studentj.tel,studentj.score);void sort_score() /按分?jǐn)?shù)排序 int i,j,t,aM; for(i=0;iM;i+) ai=studenti.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=studentj.score) prin

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

10、();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(xué)生的學(xué)號：); scanf(%s,add); for(i=0;inum;i+) if(strcmp(studenti.xuehao,add)=0) flag=1; printf(此信息已存在，不能添加！n); printf(%-10s%-8s%6s%14s%16s%16s%6d,studenti.xuehao,,studenti.sex, studenti.birth,studenti.jigua

11、n,studenti.tel,studenti.score);break; if(flag=0) printf(n無此學(xué)生信息，請?zhí)砑有畔?); scanf(%s%s%s%s%s%s%d,studentnum.xuehao,,studentnum.sex, studentnum.birth,studentnum.jiguan,studentnum.tel,&studentnum.score); num+; for(i=0;inum;i+) printf(n%-10s%-8s%6s%14s%16s%16s%6d,studenti.xuehao,studenti.na

12、me,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?jiǎng)h除的姓名：); scanf(%s,name); for(i=0;inum;i+) if(strcmp(,name)=0) flag=1; for(;inum-1;i+) studenti=studenti+1; printf(此信息存在，將被刪除。n); for(i=0;inu

13、m-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(xué)生信息，請確認(rèn)！n); void Delete_xuehao() /按學(xué)號刪除 int i; int flag=0; char xuehao10; printf(請輸入要?jiǎng)h除的學(xué)號：); scanf(%s,xuehao); for(i=0;inum;i+)

14、if(strcmp(studenti.xuehao,xuehao)=0) flag=1; for(;inum-1;i+) studenti=studenti+1; printf(此信息存在，將被刪除。n); for(i=0;inum-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(xué)生信息，請確認(rèn)！n); vo

15、id Delete() /刪除 int b; printf(n*n); printf( 1 按姓名刪除 2 按學(xué)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(xué)生的學(xué)號：); scanf(%s,modify); for(i=0;inum;

16、i+) if(strcmp(studenti.xuehao,modify)=0) flag=1; printf(學(xué)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(xué)生信息n); return; printf(n要修改學(xué)生的姓名：n); printf(student

17、=); scanf(%s,); printf(n要修改學(xué)生的性別：n); printf(studenti.sex=); scanf(%s,studenti.sex); printf(n要修改學(xué)生的出生年月：n); printf(studenti.birth=); scanf(%s,studenti.birth); printf(n要修改學(xué)生的籍貫：n); printf(studenti.jiguan=); scanf(%s,studenti.jiguan); printf(n要修改學(xué)生的電話：n); printf(studenti.tel=); scanf

18、(%s,studenti.tel); printf(n要修改學(xué)生的成績：n); printf(studenti.score=); scanf(%d,&studenti.score); for(i=0;inum;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=fope

19、n (male.txt,w); if (fp=NULL) printf(不能找到文件，請檢查！); return ; fputs(headline,fp); for(i=0;inum;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); fprintf(fp,n%-10s%-8s%6s%14s%16s%1

20、6s%6d,studenti.xuehao,,studenti.sex, studenti.birth,studenti.jiguan,studenti.tel,studenti.score); fclose(fp);void classify_female() /按女分類 int i; FILE *fp1; fp1=fopen(female.txt,w); if (fp1=NULL) printf(不能找到文件，請檢查！); return; fputs(headline,fp1); for(i=0;inum;i+) if(strcmp(studenti.sex,女)

21、=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,studenti.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; case 2:classif