学生成绩管理系统C语言

1、C语言程序设计学生成绩管理系统学 院自动化学院专业班级学号姓名联系方式 2013年11月11日程序代码：#include<stdio.h>#include<stdlib.h>#include<string.h>#pragma comment(lib,"winmm.lib")#include <windows.h>void add(char filename);struct STUDENT * rdfile(char filename,int *num);void display(char filename);int alter

2、(char filename);int delet(char filename);void rank(char filename);void decorete(int clr,char color,char width,char heighth,char title,char edge,int curn,int curk); int char2int(char cha);float avecal(struct STUDENT *p);void fail(char filename);int removefile(char filename);/ 删除 则返回 1，未删 除返回 0;int so

3、und(int sflag,int i,int s);struct STUDENTchar name10;char course510;float score5;float ave;int xuhao;int sw=-1;void main()FILE *fp;int num=0;char filename20,cz;sound(0,0,sw);while(1)file: decorete(0,"0e","67","27","" 学生成 绩管理 " 欢迎 您",'+',0,0);

4、 decorete(1,"15","67","27","输入数据文件名(默认:.bin)",' ',0,0);decorete(1,"15","67","27","< 退出程序：exit;列出文件：list",' ',1,24); printf(">>");fflush(stdin);gets(filename);printf("n"); if(s

5、trcmp(filename,"exit")=0)sound(1,1,sw);exit(0);if(strcmp(filename,"list")=0)sound(4,0,sw);system("dir /o:d *.bin");fflush(stdin);getchar();gotofile;strcat(filename,".bin");if(fp=fopen(filename,"r")=NULL)sound(2,0,sw);decorete(1,"15","6

6、7","27","文件不存在，是否创建该文件?<Y/y>",' ',0,24); printf("-");fflush(stdin);cz=getchar(); printf("n"); if(cz='Y'|cz='y')fp=fopen(filename,"w");elsegoto file;fclose(fp); sound(4,0,sw); cz=' ' while(1) display(filename

7、);S.< /关声decorete(1,"07","105","35"," 选择操作:",' ',0,0);decorete(1,"07","105","35","A.不和格学生名单B.排序 C修改 D.删除E.增加音F退出本文件 R删除文件N.退出程序",'',0,50);fflush(stdin);cz=getchar();switch(cz)case 'A':sound(4,0

8、,sw);fail(filename);break;case 'a':sound(4,0,sw);fail(filename);break;case 'B':rank(filename);sound(4,0,sw);break;case 'b':rank(filename);sound(4,0,sw);break;case 'C':alter(filename);sound(4,0,sw);break;case 'c':alter(filename);sound(4,0,sw);break;case 'D&

9、#39;:delet(filename);sound(5,0,sw);break;case 'd':delet(filename);sound(5,0,sw);break;case 'E':add(filename);sound(4,0,sw);break;case 'e':add(filename);sound(4,0,sw);break;case 'F':sound(5,0,sw);goto file;case 'f':sound(5,0,sw);goto file;case 'r':if(re

10、movefile(filename)goto file;break;case 'R':if(removefile(filename)goto file;break;case 'N':sound(1,1,sw);exit(0);case 'n':sound(1,1,sw);exit(0);case 'S':sw=sw;sound(4,0,sw);break;case 's':sw=sw;sound(4,0,sw);break;void add(char filename)FILE *fp; int i, *rs,rs

11、h; float temps; struct STUDENT *p; rs=&rsh;p=rdfile(filename,rs); prsh=(struct STUDENT *)malloc(sizeof(struct STUDENT); prsh->xuhao=rsh+1;printf("tt 请输入名字： "); name: fflush(stdin);gets(prsh->name); if(strlen(prsh->name)=0)printf("ttt");goto name; strcpy(prsh->cour

12、se0," 高等 数学 "); strcpy(prsh->course1," 物理 "); strcpy(prsh->course2," 外语 "); strcpy(prsh->course3,"C 语 言"); strcpy(prsh->course4," 德育 ");printf("ntttt输入各成 绩 ：n");for(i=0;i<5;i+) printf("ttttt%s:",prsh->coursei); s

13、core: fflush(stdin);scanf("%f",&temps); if(temps>=0&&temps<=150) prsh->scorei=temps;else sound(2,0,sw); printf("ttt 分数范围(0-150)，重新 输入："); goto score; prsh->ave=avecal(prsh); if(fp=fopen(filename,"a")=NULL)sound(3,0,sw);printf(" 无法打开相关文件！ &qu

14、ot;);exit(0);fprintf(fp,"%d. 姓 名 : %8s %8s :%5.2f %5s :%5.2f %5s :%5.2f %6s :%5.2f %5s :%5.2f 平 均 分 :%5.2fn",prsh->xuhao,prsh->name,prsh->course0,prsh->score0,prsh->course1,prsh->score1 ,prsh->course2,prsh->score2,prsh->course3,prsh->score3,prsh->course4,pr

15、sh->score4,prsh- >ave);fclose(fp);struct STUDENT * rdfile(char filename,int *num)FILE *fp;struct STUDENT *p;int xh=0;char ch;p=(struct STUDENT *)malloc(sizeof(struct STUDENT*);if(fp=fopen(filename,"r")=NULL)sound(3,0,sw);printf(" 无法打开相关文件！ n");system("pause");exit

16、(0);while(ch=fgetc(fp)!=EOF) fseek(fp,-1L,1); pxh=(struct STUDENT *)malloc(sizeof(struct STUDENT);pxh->xuhao=xh+1;fscanf(fp,"%d. 姓 名 : %8s %8s :%f %5s :%f %5s :%f %6s :%f %5s :%f 平 均 分 :%fn",&pxh->xuhao,pxh->name,pxh->course0,&pxh->score0,pxh->course1,&pxh->

17、;score1,p xh->course2,&pxh->score2,pxh->course3,&pxh->score3,pxh->course4,&pxh->score4,&pxh- >ave);xh+;*num=xh; / 最大的序 号fclose(fp);return p;void display(char filename)struct STUDENT *p;int xh;int *rs,rsh;rs=&rsh;p=(struct STUDENT *)malloc(sizeof(struct STUDEN

18、T*);p=rdfile(filename,rs);decorete(0,"07","107","35"," 文件中的 内容 ",'*',0,0);for(xh=0;xh<*rs;xh+)printf(" %d. 【 %s 】 %8s :%5.2f %5s :%5.2f %5s :%5.2f %6s :%5.2f %5s :%5.2f 平 均 分 :%5.2fn",pxh->xuhao,pxh->name,pxh->course0,pxh->scor

19、e0,pxh->course1,pxh->score1,px h->course2,pxh->score2,pxh->course3,pxh->score3,pxh->course4,pxh->score4,pxh->ave);printf("n");int alter(char filename)FILE *fp;int ren,ke,i,*rs,rsh;char c;float tempg;struct STUDENT *p;rs=&rsh;p=rdfile(filename,rs);xiugai: deco

20、rete(1,"35","107","25"," 将修改学生对应的序号： ",' ',0,50);fflush(stdin);scanf("%d",&ren);if(ren<=0|ren>rsh)sound(2,0,sw);printf("t不存在该学生的信息，重新 输入<Y/y，其他任意键退出修改>：");fflush(stdin);c=getchar();if(c='Y'|c='y')goto

21、 xiugai;elsereturn 0;ren=ren-1;decorete(1，"16"，"107"，"25"，" "，' '，0，42);printf(" 修 改 【 %s 】 成 绩 ：nnt0全 部1%-12s2%-12s3%-12s4%-12s5%-12sn"，pren->name，pren->course0，pren->course1，pren->cour se2，pren->course3，pren->course4);cs:f

22、flush(stdin);decorete(1，"16"，"107"，"25"，" "，' '，0，48);printf("->");scanf("%d"，&ke);if(ke<0|ke>5) sound(2，0，sw);printf("tt输入有误，重新输入： ");goto cs;for(i=0;i<5;i+)if(ke!=0)i=ke-1;printf("%s(%f):",pren-

23、>coursei,pren->scorei);zs: fflush(stdin);scanf("%f",&tempg);if(tempg>=0&&tempg<=150) pren->scorei=tempg;elsesound(2,0,sw);printf("tt 分数范围(0-150)，重新 输入： ");goto zs;if(ke!=0)i=ke;i=5; pren->ave=avecal(pren); printf("ttt 完成？ (Y/y)");fflush(std

24、in); c=getchar();if(c='Y'|c='y') if(fp=fopen(filename,"w")=NULL) sound(4,0,sw);printf(" 无法保存！ ");elsefor(i=0;i<rsh;i+)fprintf(fp,"%d. 姓 名 : %8s %8s :%5.2f %5s :%5.2f %5s :%5.2f %6s :%5.2f %5s :%5.2f 平 均 分 :%5.2fn",pi->xuhao,pi->name,pi->cours

25、e0,pi->score0,pi->course1,pi->score1,pi->course2 ,pi->score2,pi->course3,pi->score3,pi->course4,pi->score4,pi->ave);fclose(fp); sound(4,0,sw); puts(" 成功保存！ ");else goto xiugai;return 0;int delet(char filename)FILE *fp;int i,del, *rs,rsh;struct STUDENT *p;char

26、c,delc;rs=&rsh;p=rdfile(filename,rs);display(filename);del:decorete(1,"35","107","25"," 将删除信息序 号<删除全部： a>：",' ',0,50);fflush(stdin);scanf("%c",&delc);if(delc=97|delc=65)if(fp=fopen(filename,"w")=NULL)sound(3,0,sw);prin

27、tf("fail ！");exit(0);fclose(fp);return 0;del=delc-48;if(del<1|del>rsh)sound(2,0,sw);decorete(1,"35","107","25","不存在该学生信息，是否 继续？ <Y/y，其他任意键退出删除',0,50);fflush(stdin);c=getchar();if(c='y'|c='Y')goto del;elsereturn 0;if(fp=fopen(f

28、ilename,"w")=NULL)sound(3,0,sw);printf("fail ！");elsefor(i=0;i<rsh;i+)if(i=del-1)i+;if(i<rsh)if(i>del-1)pi->xuhao-;fprintf(fp,"%d. 姓名: %8s %8s :%5.2f %5s :%5.2f %5s :%5.2f %6s :%5.2f %5s :%5.2f 平均 分 :%5.2fn",pi->xuhao,pi->name,pi->course0,pi->sco

29、re0,pi->course1,pi->score1,pi->course2 ,pi->score2,pi->course3,pi->score3,pi->course4,pi->score4,pi->ave);fclose(fp);return 0;void rank(char filename)FILE *fp; char ch;int i,j,k,*rs,rsh,max;struct STUDENT *p;rs=&rsh;p=rdfile(filename,rs);prsh=(struct STUDENT *)malloc(s

30、izeof(struct STUDENT); display(filename);decorete(1,"16","107","35"," 排序 选项 ",' ',0,0);decorete(1,"16","107","35","0 姓名 1 高等数学 2物理 3外语 4C 语言 5 德育 6平均分 ",' ',0,50);rank: fflush(stdin);ch=getchar();if(ch<

31、;48|ch>54) sound(2,0,sw);printf("ttt 无效 选择 ！重新 输入： ");goto rank;if(fp=fopen(filename,"w")=NULL)sound(3,0,sw);printf("fail ！ "); for(i=0;i<rsh;i+) /rsh 注意max=i;for(j=i;j<rsh;j+) if(ch-48)=0&&strcmp(pmax->name,pj->name)>0)|(ch-48)>0&&(

32、ch-48)<6)&&pmax->scorech-49 <pj->scorech-49)|(ch-48)=6&&pmax->ave<pj->ave)/ 后 rsh,rsh-1,rsh-2. 最大的 标为 max strcpy(prsh->name,pmax->name); strcpy(pmax->name,pj->name); strcpy(pj->name,prsh->name);for(k=0;k<5;k+) prsh->scorek=pmax->scorek;

33、 pmax->scorek=pj->scorek; pj->scorek=prsh->scorek;pi->ave=avecal(pi);fprintf(fp,"%d. 姓 名 : %8s %8s :%5.2f %5s :%5.2f %5s :%5.2f %6s :%5.2f %5s :%5.2f 平 均 分 :%5.2fn",i+1,pi->name,pi->course0,pi->score0,pi->course1,pi->score1,pi->course2,pi->sc ore2,pi->

34、;course3,pi->score3,pi->course4,pi->score4,pi->ave);fclose(fp);void decorete(int clr,char color,char width,char heighth,char title,char edge,int curn,int curk)int i,len,num;char *mode;len=strlen(width)+strlen(heighth)+strlen(title)+35;mode=(char *)malloc(len);if(clr=0)strcpy(mode,"m

35、ode con:cols=");strcat(mode,width);strcat(mode," lines=");strcat(mode,heighth);strcat(mode," &color ");strcat(mode,color);system(mode);if(edge!=' ') num=char2int(width);for(i=0;i<num;i+)printf("%c",edge);if(strlen(title)!=1) num=(char2int(width)-strl

36、en(title)/ 2;for(i=0;i<num;i+)printf(" ");puts(title);if(edge!=' ')num=char2int(width);for(i=0;i<num;i+)printf("%c",edge);for(i=0;i<curn;i+)printf("n");for(i=0;i<curk;i+)printf(" ");int char2int(char cha)int i,len,num=0; len=strlen(cha);for

37、(i=0;i<len;i+) num=(chai-48)+10*num;return num;float avecal(struct STUDENT *p)int i;float ave,sum=0; for(i=0;i<5;i+) sum+=p->scorei;ave=sum/5;return ave;void fail(char filename)int *rs,rsh,i,j,nflag=0;struct STUDENT *p;rs=&rsh;p=rdfile(filename,rs);decorete(0,"07","105&qu

38、ot;,"35"," 挂科学生名 单",'.',0,0); for(i=0;i<rsh;i+)nflag=0; for(j=0;j<5;j+)if(pi->scorej<60) if(nflag=0) printf("n%12s 挂科科目： ",pi->name); nflag+; printf("%10s %5.2f",pi->coursej,pi->scorej); if(nflag)printf("n");fflush(stdin)

39、;getchar();int removefile(char filename)FILE *fp;char remove30; strcpy(remove,"del /p "); strcat(remove,filename); system(remove); sound(5,0,sw);if(fp=fopen(filename,"r")=NULL)return 1;elsereturn 0;int sound(int sflag,int i,int s)FILE * fp;char WIN7621="Logon Sound.wav"

40、,"Logoff Sound.wav","Error.wav","Hardware Fail.wav","Hardware Insert.wav","Hardware Remove.wav"char XP615="登录音.wav","注销音.wav","错误.wav","硬件故障.wav","硬件 插入.wav","硬件 删 除.wav"char PATH60="I:

41、WindowsMediaWindows "if(s=0)return 0;strcat(PATH,WIN7sflag);if(i=0)if(fp=fopen(PATH,"r")=NULL) strcpy(PATH,"C:WINDOWSMediaWindows XP "); strcat(PATH,XPsflag);PlaySound(PATH,NULL,SND_FILENAME|SND_ASYNC|SND_NODEFAULT); elsePlaySound(PATH,NULL,SND_FILENAME|SND_ASYNC|SND_NODEFAU

42、LT);elseif(fp=fopen(PATH,"r")=NULL) strcpy(PATH,"C:WINDOWSMediaWindows XP "); strcat(PATH,XPsflag);PlaySound(PATH,NULL,SND_FILENAME|SND_SYNC|SND_NODEFAULT); elsePlaySound(PATH,NULL,SND_FILENAME|SND_SYNC|SND_NODEFAULT);return 0;运行效果:1.启动 <出现以下界面并伴随有系统登录声音>:此时输入exit则退出程序，输入li

43、st可列出当前文件中所有bin文件2.输入文件名可进入文件，若不存在则询问是否创建：选择是，则3.创建并进入文件:此时文件内容为空，输入 e/E,可4.添加学生信息半詡人弓我堆： 导等鹤学叨U 物理：00CiH：4输入所有学生信息:挂科学生若单挂科科目挂料斜目判理挂科科目-出= -匚 LJ515匕心0.W 80.« Hr-f n !MPl II 85.«?文匸“终琨J业J s”屮葩內昌敲软井夸-黜仆验2D10半tentt暂也蛭药I半外谱 6B, 05外语 O.Di物理:PQ.OO 仙理：60,00 韬遅7讯,g 豹渥 TltJCi.OCi 物锂:9L. K '珂归：

44、£ !. J；夕、谣：12'AQ0 夕 rjS ； Ck.<00 外ig ; E&44 >Hg ：1SD. 00 夕、為:IDO. OC #H5 : 65.00 兀岸择fl :九刁貝冷学生若单b-H/t匕停也D.JB隐区划匂s. 'JT/Xti F,退出本文件乩删琼丈件毗退岀辽畔r-igo 4.00平曲分IJS.8U 平均尸=15.80 壬均廿苗a iZ；r7' 3 10*T.iii 半均分:禺”ie -J?- ：7C.8O<1哦灰5.按A查看不和格学生列表6.按B进入排序模式 <以c语言排序为例 > 排序后:彩拼昔_箭般

45、西10半千氏権学生名甲；抹序亡得改D.別触(:语肓:dg言：J5.X CtH :玄1,3 CiB : 40.DC 亡胃古：30.00 eigft :"；習渥：')i,LXl 挪曰：9LWSJS : 90-00 辆理:34. W 初埋；doc 物理:6J.00髙芋蹌事：回炖 言弄:皿m 庄够学：朋40 高等斟宇:mo 趕欝文学：皿m 虔瑙宇:M0.OO朴语 ElSCxQD夕卜亡Jhg ：12OlO0榊-诰:6E.QUJbE : 59.00列-谱:0.00选犀揑惟：期7T1 口 :哄E 肌退出本文件氐制瞪玄芈JT.退出1记序平均补：07. 00 平坦汁：94.M 平均井:9S.

46、3Q 丰半初' ：5弐| 苹均歼:S7. 60 朿歧沿：lS,tOix o卜吉干羊3-小灰交4. 聘半年 去蟻羊工 乩换太網回7.输入C进行修改模式 学生输入序号输入5修改德育成绩，显示所修改的科目和原来成绩，输入新成绩，回车：有甲* mM - JR 4卜* * *乩不厦椅学丄呂显bjm 匕修囲DV件"辔旃回T.bU严 中贰内寺90. <Xi 10. W 30,004.00Ci>in : 10Q.C0 q£fc _'3! QJ 9-册味氐燼加直遇出蚊徉R.JElBfr*#也退岀即？ifia¥1恳改辽黑*SKOC11；頁于岀VI收理k,pr iqnjr vp上丸1_1詈1,心口<11_1 也Dgk口 p学性 匪事l)fg£ ：7乂 b 亍 w 产IL.hi c语言愉人育i岂垂箭输.气：>s详匕eq班；：tii羊k>Tie 如举灰羊单太 先頁小暧幡现sioaoo:90.00 iw:99.00 tW:80.00 tW;01,00刊珂:30.00 iES：1WUD :tl.OD :9C.U0 ;Sd.00 7叫 :eo.oo外佶:15（X0u 夕i-i台! iuix ou 井書：L2X 00 夕囉:65.0Q 外這:50*