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1、#includestdio.h /*學(xué)生成績(jī)管理系統(tǒng)*/#includestring.h#includestdlib.h#includeconio.h /*函數(shù) getch() 所需頭文件*/int m,n;FILE *fr;char fname81;struct ke /*建立科目結(jié)構(gòu)體*/ int dianfen; /*電路分析*/ int gaoshu; /*高等數(shù)學(xué)*/ int yingyu; /*大學(xué)英語(yǔ)*/ int dawu; /*大學(xué)物理*/;struct student /*建立學(xué)生結(jié)構(gòu)體*/ long num; /*學(xué)號(hào)*/ char name21; /*姓名*/ char

2、xibie21; /*系別*/ char banji21; /*班級(jí)*/ struct ke kemu; /*科目*/ int zongfen; /*總分*/*s;void find(); /*函數(shù)說(shuō)明*/void menu(); /*函數(shù)說(shuō)明*/void xpm(); /*函數(shù)說(shuō)明*/void bpm(); /*函數(shù)說(shuō)明*/void xifen(); /*函數(shù)說(shuō)明*/void paim(); /*函數(shù)說(shuō)明*/void xi() /*按系查詢*/int i,j=0;char k21; clrscr(); printf(Please enter the Department to query:)

3、;/*請(qǐng)輸入所要查詢的系*/ scanf(%s,k); printf(%10s%10s%10s%10s%8s%7s%7s%7s%10sn,xuehao,xingming,xibie,banji,dianfen,gaoshu,yingyu,dawu,zongfen); for(i=0;in;i+) if(strcmp(k,si.xibie)=0) j+; printf(%10ld%10s%10s%10s%8d%7d%7d%7d%10dn,si.num,si.name,si.xibie,si.banji,si.kemu.dianfen,si.kemu.gaoshu,si.kemu.yingyu,s

4、i.kemu.dawu,si.zongfen); printf(The Department %s has %d student.n,k,j); printf(Press any key to continue.n); getch(); find();void banji() /*按班級(jí)查詢*/ int i,j=0;char k21; clrscr(); printf(Please enter the class to query:); /*請(qǐng)輸入所要查詢的班級(jí)*/ scanf(%s,k); printf(%10s%10s%10s%10s%8s%7s%7s%7s%10sn,xuehao,xin

5、gming,xibie,banji,dianfen,gaoshu,yingyu,dawu,zongfen); for(i=0;in;i+) if(strcmp(k,si.banji)=0) j+; printf(%10ld%10s%10s%10s%8d%7d%7d%7d%10dn,si.num,si.name,si.xibie,si.banji,si.kemu.dianfen,si.kemu.gaoshu,si.kemu.yingyu,si.kemu.dawu,si.zongfen); printf(The class %s has %d student.n,k,j); printf(Pres

6、s any key to continue.n); getch(); find();void df() /*查詢電路分析成績(jī)*/ int i,j,t,k;int p20; clrscr(); for(i=0;in;i+) pi=i;pi+1=0; printf(%10s%10s%10s%10s%10sn,xuehao,xingming,xibie,banji,dianfen); for(i=1;in;i+) /*索引排序*/ for(j=0;jn-i;j+) if(spj.kemu.dianfenspj+1.kemu.dianfen) t=pj;pj=pj+1;pj+1=t; for(k=0;

7、kn;k+) printf(%10ld%10s%10s%10s%10dn,spk.num,spk.name,spk.xibie,spk.banji,spk.kemu.dianfen); printf(Press any key to continue.n); getch(); find();void gs() /*查詢高等數(shù)學(xué)成績(jī)*/ int i,j,t,k;int p20; clrscr(); for(i=0;in;i+) pi=i;pi+1=0; printf(%10s%10s%10s%10s%10sn,xuehao,xingming,xibie,banji,gaoshu); for(i=

8、1;in;i+) /*索引排序*/ for(j=0;jn-i;j+) if(spj.kemu.gaoshuspj+1.kemu.gaoshu) t=pj;pj=pj+1;pj+1=t; for(k=0;kn;k+) printf(%10ld%10s%10s%10s%10dn,spk.num,spk.name,spk.xibie,spk.banji,spk.kemu.gaoshu); printf(Press any key to continue.n); getch(); find();void yy() /*查詢大學(xué)英語(yǔ)成績(jī)*/ int i,j,t,k;int p20; clrscr();

9、for(i=0;in;i+) pi=i;pi+1=0; printf(%10s%10s%10s%10s%10sn,xuehao,xingming,xibie,banji,yingyu); for(i=1;in;i+) /*索引排序*/ for(j=0;jn-i;j+) if(spj.kemu.yingyuspj+1.kemu.yingyu) t=pj;pj=pj+1;pj+1=t; for(k=0;kn;k+) printf(%10ld%10s%10s%10s%10dn,spk.num,spk.name,spk.xibie,spk.banji,spk.kemu.yingyu); printf(

10、Press any key to continue.n); getch(); find();void dw() /*查詢大學(xué)物理成績(jī)*/int i,j,t,k;int p20; clrscr(); for(i=0;in;i+) pi=i;pi+1=0; printf(%10s%10s%10s%10s%10sn,xuehao,xingming,xibie,banji,dawu); for(i=1;in;i+) /*索引排序*/ for(j=0;jn-i;j+) if(spj.kemu.dawuspj+1.kemu.dawu) t=pj;pj=pj+1;pj+1=t; for(k=0;kn;k+)

11、 printf(%10ld%10s%10s%10s%10dn,spk.num,spk.name,spk.xibie,spk.banji,spk.kemu.dawu); printf(Press any key to continue.n); getch(); find();void kemu() /*按科目查詢*/clrscr(); printf(ttt*-*n); printf(ttt* 1:Dian fen *n); printf(ttt* 2:Gao shu *n); printf(ttt* 3:Ying yu *n); printf(ttt* 4:Da wu *n); printf(t

12、tt* 0:Return *n); printf(ttt*-*n); printf(Please enter your choice(0-4):); scanf(%d,&m); switch(m) case 0:find();break; case 1:df();break; case 2:gs();break; case 3:yy();break; case 4:dw();break; default:printf(Input error!n);printf(Press any key to continue.n);getch();kemu(); void xueh() /*修改學(xué)號(hào)*/in

13、t i;char k20; clrscr(); printf(Input the students name:); scanf(%s,k); for(i=0;in;i+) if(strcmp(k,si.name)=0) printf(Ipnut the xuehao:); scanf(%ld,&si.num); void xingm() /*修改姓名*/int i;char k20; clrscr(); printf(Input the students name:); scanf(%s,k); for(i=0;in;i+) if(strcmp(k,si.name)=0) printf(Ipn

14、ut the name:); scanf(%s,si.name); void xib() /*修改系別*/int i;char k20; clrscr(); printf(Input the students name:); scanf(%s,k); for(i=0;in;i+) if(strcmp(k,si.name)=0) printf(Ipnut the xibie:); scanf(%s,si.xibie); void banj()/*修改班級(jí)*/int i;char k20; clrscr(); printf(Input the students name:); scanf(%s,k

15、); for(i=0;in;i+) if(strcmp(k,si.name)=0) printf(Ipnut the banji:); scanf(%s,si.banji); void dianf()/*修改電路分析成績(jī)*/int i;char k20; clrscr(); printf(Input the students name:); scanf(%s,k); for(i=0;in;i+) if(strcmp(k,si.name)=0) printf(Ipnut the dian fen cheng ji:); scanf(%d,&si.kemu.dianfen); void gaos(

16、)/*修改高等數(shù)學(xué)成績(jī)*/int i;char k20; clrscr(); printf(Input the students name:); scanf(%s,k); for(i=0;in;i+) if(strcmp(k,si.name)=0) printf(Ipnut the gao shu cheng ji:); scanf(%d,&si.kemu.gaoshu); void yingy()/*修改大學(xué)英語(yǔ)成績(jī)*/int i;char k20; clrscr(); printf(Input the students name:); scanf(%s,k); for(i=0;in;i+)

17、 if(strcmp(k,si.name)=0) printf(Ipnut the ying yu cheng ji:); scanf(%d,&si.kemu.yingyu); void daw()/*修改大學(xué)物理成績(jī)*/int i;char k20; clrscr(); printf(Input the students name:); scanf(%s,k); for(i=0;in;i+) if(strcmp(k,si.name)=0) printf(Ipnut the da wu cheng ji:); scanf(%d,&si.kemu.dawu); void xiugai() /*修

18、改學(xué)生信息*/char k20,p20=abcd; clrscr(); printf(Input the password:); scanf(%s,k); if(strcmp(k,p)=0) clrscr(); printf(tt*-*n); printf(tt* 1:Modified xuehao *n); /*修改學(xué)號(hào)*/ printf(tt* 2:Modified xingming *n); /*修改姓名*/ printf(tt* 3:Modified xibie *n); /*修改系別*/ printf(tt* 4:Modified banji *n); /*修改班級(jí)*/ printf

19、(tt* 5:Modified dianfen score *n); /*修改電路分析成績(jī)*/ printf(tt* 6:Modified gaoshu score *n); /*修改高等數(shù)學(xué)成績(jī)*/ printf(tt* 7:Modified yingyu score *n); /*修改大學(xué)英語(yǔ)成績(jī)*/ printf(tt* 8:Modified dawu score *n); /*修改大學(xué)物理成績(jī)*/ printf(tt* 0:Return *n); /*回到主菜單*/ printf(tt*-*n); printf(Please enter your choice(0-4):); scan

20、f(%d,&m); switch(m) case 0:break; case 1:xueh();break; case 2:xingm();break; case 3:xib();break; case 4:banj();break; case 5:dianf();break; case 6:gaos();break; case 7:yingy();break; case 8:daw();break; default:printf(Input error!n);printf(Press any key to continue.n);getch();xiugai(); find();void f

21、ind() /*查詢菜單*/clrscr(); printf(tt*-*n); printf(tt* 1:Inquiries by the Department *n); /*按系查詢*/ printf(tt* 2:Inquiries by the class *n); /*按班級(jí)查詢*/ printf(tt* 3:Inquiries by the subject *n); /*按科目查詢*/ printf(tt* 4:Modify the basic information *n); /*基本信息修改*/ printf(tt* 0:Back to main menu *n); /*回到主菜單

22、*/ printf(tt*-*n); printf(Please enter your choice(0-4):); scanf(%d,&m); switch(m) case 0:menu();break; case 1:xi();break; case 2:banji();break; case 3:kemu();break; case 4:xiugai();break; default:printf(Input error!n);printf(Press any key to continue.n);getch();find(); void xipj() /*按系查詢(求單科平均成績(jī)、及格

23、率和優(yōu)秀率)*/double a=0,j=0,k=0,l=0; int i;char f21; clrscr(); printf(Please enter the Department to query:);/*請(qǐng)輸入所要查詢的系*/ scanf(%s,f); for(i=0;i=60) k+; if(si.kemu.dianfen=90) l+; if(j=0) printf(Input error!n);printf(Press any key to continue.n);getch(); else printf(The Department:%snThe dianfen average

24、 score is:%5.1lf jigelv:%.1lf% youxiulv:%.1lf%n,f,a/j,k*100/j,l*100/j); a=0;k=0;l=0; for(i=0;i=60) k+; if(si.kemu.gaoshu=90) l+; printf(The gaoshu average score is:%5.1lf jigelv:%.1lf% youxiulv:%.1lf%n,a/j,k*100/j,l*100/j); a=0;k=0;l=0; for(i=0;i=60) k+; if(si.kemu.yingyu=90) l+; printf(The yingyu a

25、verage score is:%5.1lf jigelv:%.1lf% youxiulv:%.1lf%n,a/j,k*100/j,l*100/j); a=0;k=0;l=0; for(i=0;i=60) k+; if(si.kemu.dawu=90) l+; printf(The dawu average score is:%5.1lf jigelv:%.1lf% youxiulv:%.1lf%n,a/j,k*100/j,l*100/j); printf(Press any key to continue.n); getch(); xifen();void banpj() /*按班級(jí)查詢(求

26、單科平均成績(jī)、及格率和優(yōu)秀率)*/double a=0,j=0,k=0,l=0; int i;char f21; clrscr(); printf(Please enter the Class to query:);/*請(qǐng)輸入所要查詢的系*/ scanf(%s,f); for(i=0;i=60) k+; if(si.kemu.dianfen=90) l+; if(j=0) printf(Input error!n);printf(Press any key to continue.n);getch(); else printf(The class:%snThe dianfen average

27、scores is:%5.1lf jigelv:%.1lf% youxiulv:%.1lf%n,f,a/j,k*100/j,l*100/j); a=0;k=0;l=0; for(i=0;i=60) k+; if(si.kemu.gaoshu=90) l+; printf(The gaoshu average scores is:%5.1lf jigelv:%.1lf% youxiulv:%.1lf%n,a/j,k*100/j,l*100/j); a=0;k=0;l=0; for(i=0;i=60) k+; if(si.kemu.yingyu=90) l+; printf(The yingyu

28、average scores is:%5.1lf jigelv:%.1lf% youxiulv:%.1lf%n,a/j,k*100/j,l*100/j); a=0;k=0;l=0; for(i=0;i=60) k+; if(si.kemu.dawu=90) l+; printf(The dawu average scores is:%5.1lf jigelv:%.1lf% youxiulv:%.1lf%n,a/j,k*100/j,l*100/j); printf(Press any key to continue.n); getch(); xifen();void xifen() /* 次菜單

29、 (每系成績(jī)分析:求單科平均成績(jī)、及格率和優(yōu)秀率)*/clrscr(); printf(t*-*n); printf(t* 1:Inquiries by the Department *n);/*按系查詢*/ printf(t* 2:Inquiries by the class *n);/*按班級(jí)查詢*/ printf(t* 0:Back to main menu *n);/*回到主菜單*/ printf(t*-*n); printf(Please enter your choice(0-2):); scanf(%d,&m); switch(m) case 0:menu();break; ca

30、se 1:xipj();break; case 2:banpj();break; default:printf(Input error!n);printf(Press any key to continue.n);getch();xifen(); void kefen() /*對(duì)所開(kāi)課程的成績(jī)分析（求其平均成績(jī)，最高分和最低分）*/int i,k1=0,k2=0;double a=0; clrscr(); for(i=0;in;i+) a=a+si.kemu.dianfen; if(sk1.kemu.dianfen=si.kemu.dianfen) k2=i; printf(*Dianfen*

31、naverage score:%.1lfn,a/n); printf(highest score:n); printf(%ld%10s%10s%10s%6dn,sk1.num,sk1.name,sk1.xibie,sk1.banji,sk1.kemu.dianfen); printf(lowest score:n); printf(%ld%10s%10s%10s%6dn,sk2.num,sk2.name,sk2.xibie,sk2.banji,sk2.kemu.dianfen); /*電路分析的平均成績(jī)和最高低分*/ k1=k2=0;a=0; for(i=0;in;i+) a=a+si.kem

32、u.gaoshu; if(sk1.kemu.gaoshu=si.kemu.gaoshu) k2=i; printf(*Gaoshu*naverage score:%.1lfn,a/n); printf(highest score:n); printf(%ld%10s%10s%10s%6dn,sk1.num,sk1.name,sk1.xibie,sk1.banji,sk1.kemu.gaoshu); printf(lowest score:n); printf(%ld%10s%10s%10s%6dn,sk2.num,sk2.name,sk2.xibie,sk2.banji,sk2.kemu.ga

33、oshu); /*高等數(shù)學(xué)的平均成績(jī)和最高低分*/ printf(Press any key to continue.n); getch(); clrscr(); k1=k2=0;a=0; for(i=0;in;i+) a=a+si.kemu.yingyu; if(sk1.kemu.yingyu=si.kemu.yingyu) k2=i; printf(*Yingyu*naverage score:%.1lfn,a/n); printf(highest score:n); printf(%ld%10s%10s%10s%6dn,sk1.num,sk1.name,sk1.xibie,sk1.ban

34、ji,sk1.kemu.yingyu); printf(lowest score:n); printf(%ld%10s%10s%10s%6dn,sk2.num,sk2.name,sk2.xibie,sk2.banji,sk2.kemu.yingyu); /*大學(xué)英語(yǔ)的平均成績(jī)和最高低分*/ k1=k2=0;a=0; for(i=0;in;i+) a=a+si.kemu.dawu; if(sk1.kemu.dawu=si.kemu.dawu) k2=i; printf(*Dawu*naverage score:%.1lfn,a/n); printf(highest score:n); print

35、f(%ld%10s%10s%10s%6dn,sk1.num,sk1.name,sk1.xibie,sk1.banji,sk1.kemu.dawu); printf(lowest score:n); printf(%ld%10s%10s%10s%6dn,sk2.num,sk2.name,sk2.xibie,sk2.banji,sk2.kemu.dawu); /*大學(xué)物理的平均成績(jī)和最高低分*/ printf(Press any key to continue.n); getch(); menu();void xipm() /*按系單科排名*/ int i,j,t,a,k=0;int p20; c

36、har q20; clrscr(); printf(Please enter the Department to query:); /*請(qǐng)輸入所要查詢的系*/ scanf(%s,q); /*電路分析科排名*/ printf(*%s xi Dian fen dan ke pai ming *n,q); for(i=0;in;i+) if(strcmp(q,si.xibie)=0) pk+=i; pk=0; for(i=1;ik;i+) /*索引排序*/ for(j=0;jk-i;j+) if(spj.kemu.dianfenspj+1.kemu.dianfen) t=pj;pj=pj+1;pj+

37、1=t; printf(%10s%10s %8s %8s%8sn,xuehao,xingming,xibie,banji,dianfen); for(a=0;ak;a+) printf(%10ld%10s %8s %8s%8dn,spa.num,spa.name,spa.xibie,spa.banji,spa.kemu.dianfen); printf(Press any key to continue.n); getch(); clrscr(); /*高等數(shù)學(xué)科排名*/ printf(*%s xi Gao shu dan ke pai ming *n,q); for(i=1;ik;i+) /

38、*索引排序*/ for(j=0;jk-i;j+) if(spj.kemu.gaoshuspj+1.kemu.gaoshu) t=pj;pj=pj+1;pj+1=t; printf(%10s%10s %8s %8s%8sn,xuehao,xingming,xibie,banji,gaoshu); for(a=0;ak;a+) printf(%10ld%10s %8s %8s%8dn,spa.num,spa.name,spa.xibie,spa.banji,spa.kemu.gaoshu); printf(Press any key to continue.n); getch(); clrscr(

39、);/*大學(xué)英語(yǔ)科排名*/ printf(*%s xi Ying yu dan ke pai ming *n,q); for(i=1;ik;i+) /*索引排序*/ for(j=0;jk-i;j+) if(spj.kemu.yingyuspj+1.kemu.yingyu) t=pj;pj=pj+1;pj+1=t; printf(%10s%10s %8s %8s%8sn,xuehao,xingming,xibie,banji,yingyu); for(a=0;ak;a+) printf(%10ld%10s %8s %8s%8dn,spa.num,spa.name,spa.xibie,spa.ba

40、nji,spa.kemu.yingyu); printf(Press any key to continue.n); getch(); clrscr(); /*大學(xué)物理科排名*/ printf(*%s xi Da wu dan ke pai ming *n,q); for(i=1;ik;i+) /*索引排序*/ for(j=0;jk-i;j+) if(spj.kemu.dawuspj+1.kemu.dawu) t=pj;pj=pj+1;pj+1=t; printf(%10s%10s %8s %8s%8sn,xuehao,xingming,xibie,banji,dawu); for(a=0;a

41、k;a+) printf(%10ld%10s %8s %8s%8dn,spa.num,spa.name,spa.xibie,spa.banji,spa.kemu.dawu); printf(Press any key to continue.n); getch(); paim();void banpm() /*按每班總成績(jī)排名*/int i,j,t,k=0;int p30; char q20; clrscr(); printf(Please enter the class to query:n); /*請(qǐng)輸入所要查詢的班級(jí)*/ scanf(%s,q); for(i=0;in;i+) if(st

42、rcmp(q,si.banji)=0) pk+=i; pk=0; for(i=1;ik;i+) /*索引排序*/ for(j=0;jk-i;j+) if(spj.zongfenspj+1.zongfen) t=pj;pj=pj+1;pj+1=t; t=k; printf(%8s%10s%10s%10s%8s%8s%8s%8s%10sn,xuehao,xingming,xibie,banji,dianfen,gaoshu,yingyu,dawu,zongfen); for(k=0;kt;k+) printf(%8ld%10s%10s%10s%8d%8d%8d%8d%10dn,spk.num,sp

43、k.name,spk.xibie,spk.banji,spk.kemu.dianfen,spk.kemu.gaoshu,spk.kemu.yingyu,spk.kemu.dawu,spk.zongfen); printf(Press any key to continue.n); getch(); paim();void paim() /*學(xué)生考試成績(jī)排名菜單*/clrscr(); printf(t*-*n); printf(t* 1:Billing Division of the rankings by the Department *n); /*按系單科排名*/ printf(t* 2:R

44、anked by total score of the class *n); /*按班總成績(jī)排名*/ printf(t* 0:Back to main menu *n); /*回到主菜單*/ printf(t*-*n); printf(Please enter your choice(0-2):); scanf(%d,&m); switch(m) case 0:menu();break; case 1:xipm();break; case 2:banpm();break; default:printf(Input error!n);printf(Press any key to continu

45、e.n);getch();paim(); void save()int i; fr=fopen(fname,w); for(i=0;in;i+) /*保存修改信息*/ fprintf(fr,%ld %s %s %s %d %d %d %d,si.num,si.name,si.xibie,si.banji,si.kemu.dianfen,si.kemu.gaoshu,si.kemu.yingyu,si.kemu.dawu); fprintf(fr,n); fcloseall(); void menu() /*主菜單*/clrscr(); printf(t*-main menu-*n); prin

46、tf(t* 1:Basic information inquiries *n); /*基本信息的查詢*/ printf(t* 2:Department of subjects for each analysis of results *n); /*對(duì)系各科成績(jī)的分析*/ printf(t* 3:The analysis to the performance of each course *n); /*對(duì)所開(kāi)課程的成績(jī)分析*/ printf(t* 4:Test scores of students to rank *n); /*對(duì)學(xué)生考試成績(jī)進(jìn)行排名*/ printf(t* 0:Exit the

47、 process *n); /*退出程序*/ printf(t*-*nn); printf(Please enter your choice(0-4):); scanf(%d,&m); switch(m) case 0:save();free(void *)s);printf(Press any key to continue.n);getch();break; case 1:find();break; case 2:xifen();break; case 3:kefen();break; case 4:paim();break; default:printf(Input error!n);p

48、rintf(Press any key to continue.n);getch();menu(); void input()int i; printf(Input the number of the student(=the number of students in the file):); /*輸入學(xué)生人數(shù)*/ scanf(%d,&n); printf(xuehao xingming xibie banji dianfen gaoshu yingyu dawun); s=(struct student *)malloc(n*sizeof(struct student); /*建立n個(gè)學(xué)生成員*/ for(i=0;in;i+) /*讀入學(xué)生