學(xué)生檔案標(biāo)準(zhǔn)管理系統(tǒng)

《C語言程序設(shè)計(jì)》課程設(shè)計(jì)任務(wù)書課題：學(xué)生成績(jī)管理系統(tǒng)班級(jí)：1003專業(yè)：教育信息和技術(shù)學(xué)院成員：譚俊奇胡夢(mèng)東吳峰指導(dǎo)老師：黃海軍時(shí)間：6月14—6月28日

學(xué)生成績(jī)管理系統(tǒng)一．人員分配：譚俊奇負(fù)責(zé)源程序編寫，寫出步驟圖并評(píng)價(jià)。胡夢(mèng)東查找參考資料，上機(jī)查對(duì)程序運(yùn)行情況。吳峰負(fù)責(zé)對(duì)源程序查對(duì)及對(duì)整個(gè)試驗(yàn)評(píng)價(jià)。二.設(shè)計(jì)要求：依據(jù)鍵盤上數(shù)字，定義成績(jī)管理系統(tǒng)分配任務(wù)該系統(tǒng)能夠增加學(xué)生成績(jī)統(tǒng)計(jì)。該系統(tǒng)能夠查找學(xué)生成績(jī)?cè)撓到y(tǒng)能夠統(tǒng)計(jì)（總成績(jī)和平均分）該系統(tǒng)能夠修改學(xué)生信息該系統(tǒng)能夠查看學(xué)生成績(jī)?cè)撓到y(tǒng)能夠刪除學(xué)生成績(jī)?cè)撓到y(tǒng)能夠輸出不及格人數(shù)能夠保留修改信息能夠隨時(shí)退出系統(tǒng)三．參考資料1）參考windowsapi函數(shù)大全2）參考C語言程序總匯3）參考C語言上機(jī)試驗(yàn)題庫4）參考C語言系統(tǒng)操作手冊(cè)四.系統(tǒng)結(jié)構(gòu)和部分步驟圖總結(jié)構(gòu)structstudentst[300] xianshi()voidadd()voidchazhao()voidtj()voidxg()voiddel()voidbjg()voidzz()voidselect()voidbca()voidfh()return0五．源代碼#include<stdio.h>#include<stdlib.h>#include<string.h>#definetrue1structstudent{charname[60];charID[7];intscore;};intdq(structstudentst[]);voidxianshi();voidbc(structstudentst[]);voidadd();voidselect();voidzz();voidchazhao();voidxhcz();voidxmcz();voiddel();voidxmsc();voidxhsc();voidtj();voidbjg();voidxg();voidxhxg();voidxmxg();voidbca();voidfh();structstudentst[300];intNumber=0;voidmain(){intchoose=0;FILE*fp=NULL;charyesorno;if((fp=fopen("C://student.dat","rb"))==NULL){printf("\n=========>提醒：文件不存在，是否要?jiǎng)?chuàng)建一個(gè)?(y/n)\n");scanf("%c",&yesorno);if(yesorno=='y'||yesorno=='Y'){fp=fopen("C://student.dat","wb");fclose(fp);}elseexit(0);}else{Number=dq(st);}system("cls");while(true){xianshi();printf("\t\t====>請(qǐng)選擇：");scanf("%d",&choose);system("cls");switch(choose){case0:exit(0);fh();break;case1:add();fh();break;case2:select();fh();break;case3:chazhao();fh();break;case4:del();fh();break;case5:tj();fh();break;case6:bjg();fh();break;case7:xg();fh();break;case8:zz();fh();break;case9:bca();break;default:break;}fflush(stdin);getchar();system("cls");}}voidbca(){printf("\t=====程序在運(yùn)行時(shí)已自動(dòng)保留.....\n");}voidfh(){printf("\t===>按Enter鍵返回主菜單\n");}voidxg(){intway=0;printf("請(qǐng)選擇修改查找方法\n");printf("1按姓名查找修改\n");printf("2按學(xué)號(hào)查找修改\n");scanf("%d",&way);switch(way){case1:xmxg();break;case2:xhxg();break;default:printf("輸入有誤，結(jié)束!\n");break;}}voidxmxg(){FILE*fp=NULL;charname[60];inti=0;intchangeIndex=0;intindex=0;printf("請(qǐng)輸入要修改學(xué)生姓名：");scanf("%s",name);for(i=0;i<Number;i++){if(strcmp(name,st[i].name)){changeIndex=i;}break;}printf("\t姓名\t學(xué)號(hào)\t成績(jī)\n");printf("\t%s\t%s\t%d\n\n",st[changeIndex].name,st[changeIndex].ID,st[changeIndex].score);printf("請(qǐng)重新輸入該學(xué)生信息");printf("姓名：");scanf("%s",st[changeIndex].name);printf("學(xué)號(hào)：");scanf("%s",st[changeIndex].ID);printf("成績(jī)：");scanf("%d",&st[changeIndex].score);fp=fopen("C://student.dat","wb");for(i=0;i<Number;i++){fwrite(&st[i],sizeof(structstudent),1,fp);}fclose(fp);}voidxhxg(){FILE*fp=NULL;charid[60];inti=0;intchangeIndex=0;intindex=0;printf("請(qǐng)輸入要修改學(xué)生學(xué)號(hào)：");scanf("%s",id);for(i=0;i<Number;i++){if(strcmp(id,st[i].ID)){changeIndex=i;}break;}printf("\t姓名\t學(xué)號(hào)\t成績(jī)\n");printf("\t%s\t%s\t%d\n\n",st[changeIndex].name,st[changeIndex].ID,st[changeIndex].score);printf("請(qǐng)重新輸入該學(xué)生信息");printf("姓名：");scanf("%s",st[changeIndex].name);printf("學(xué)號(hào)：");scanf("%s",st[changeIndex].ID);printf("成績(jī)：");scanf("%d",&st[changeIndex].score);fp=fopen("C://student.dat","wb");for(i=0;i<Number;i++){fwrite(&st[i],sizeof(structstudent),1,fp);}fclose(fp);printf("\t=======>修改成功\n");}voidbjg(){inti=0;printf("以下是不及格:\n");printf("\t姓名\t學(xué)號(hào)\t成績(jī)\n");for(i=0;i<Number;i++){if(st[i].score<60){printf("\t%s\t%s\t%d\n",st[i].name,st[i].ID,st[i].score);}}}voidtj(){inti=0;doublesum=0.0;for(i=0;i<Number;i++){sum+=st[i].score;}printf("全班總分為：%f\n",sum);printf("平均分為：%f\n",sum/Number);}voiddel(){intn=0;printf("1按姓名刪除\n");printf("2按學(xué)號(hào)刪除\n");scanf("%d",&n);switch(n){case1:xmsc();break;case2:xhsc();break;}}voidxmsc(){FILE*fp=NULL;charname[60];inti=0;intj=0;printf("請(qǐng)輸入要?jiǎng)h除學(xué)生姓名：");scanf("%s",name);for(i=0;i<Number;i++){if(strcmp(name,st[i].name)==0){for(j=i;j<Number-1;j++){st[j]=st[j+1];}Number--;}}fp=fopen("C://student.dat","wb");for(i=0;i<Number;i++){fwrite(&st[i],sizeof(structstudent),1,fp);}fclose(fp);printf("刪除成功;\n");}voidxhsc(){FILE*fp=NULL;charid[60];inti=0;intj=0;printf("請(qǐng)輸入要?jiǎng)h除學(xué)生學(xué)號(hào)：");scanf("%s",id);for(i=0;i<Number;i++){if(strcmp(id,st[i].ID)==0){for(j=i;j<Number-1;j++){st[j]=st[j+1];}Number--;}}fp=fopen("C://student.dat","wb");for(i=0;i<Number;i++){fwrite(&st[i],sizeof(structstudent),1,fp);}fclose(fp);printf("刪除成功;\n");}voidchazhao(){intn=0;printf("1按姓名查找\n");printf("2按學(xué)號(hào)查找\n");scanf("%d",&n);switch(n){case1:xmcz();break;case2:xhcz();break;default:printf("輸入有誤，結(jié)束!\n");break;}}voidxhcz(){charid[7];inti=0;printf("請(qǐng)輸入要查找學(xué)生學(xué)號(hào):");scanf("%s",id);system("cls");printf("\t姓名\t學(xué)號(hào)\t成績(jī)\n");for(i=0;i<Number;i++){if(strcmp(id,st[i].ID)==0){printf("\t%s\t%s\t%d\n",st[i].name,st[i].ID,st[i].score);}}}voidxmcz(){charname[7];inti=0;printf("請(qǐng)輸入要查找學(xué)生姓名:");scanf("%s",name);system("cls");printf("\t姓名\t學(xué)號(hào)\t成績(jī)\n");for(i=0;i<Number;i++){if(strcmp(name,st[i].name)==0){printf("\t%s\t%s\t%d\n",st[i].name,st[i].ID,st[i].score);}}}voidzz(){printf("\t**********************************************************\n\n");printf("\t^^^^^^^^^《學(xué)生成績(jī)管理系統(tǒng)》^^^^^^^^^^\n\n");printf("\t^^^^^^^^^湖北師范學(xué)院^^^^^^^^^^\n\n");printf("\t^^^^^^^^^教育信息和技術(shù)學(xué)院^^^^^^^^^^\n\n");printf("\t^^^^^^^^^譚俊奇^^^^^^^^^^\n\n");printf("\t**********************************************************\n\n");}voidselect(){inti=0;printf("以下是全部學(xué)生成績(jī)\n");printf("\t姓名\t學(xué)號(hào)\t成績(jī)\n");for(i=0;i<Number;i++){printf("\t%s\t%s\t%d\n",st[i].name,st[i].ID,st[i].score);}}voidadd(){intnumberTemp=0;inti=0;structstudenttemp;printf("請(qǐng)輸入要增加學(xué)生成績(jī)個(gè)數(shù)：");scanf("%d",&numberTemp);for(i=0;i<numberTemp;i++){printf("輸入第%d個(gè)同學(xué)信息\n",i+1);printf("姓名：");scanf("%s",);printf("學(xué)號(hào)：");scanf("%s",temp.ID);printf("成績(jī)：");scanf("%d",&temp.score);st[Number++]=temp;bc(&temp);}printf("添加成功\n");}voidbc(structstudent*st){FILE*fp=NULL;fp=fopen("C://student.dat","ab+");fwrite(st,sizeof(structstudent),1,fp);fclose(fp);}intdq(structstudentst[]){FILE*fp=NULL;inti=0;fp=fopen("C://student.dat","rb");while(fread(&st[i],sizeof(structstudent),1,fp))i++;fclose(fp);returni;}voidxianshi(){printf("\t*****************************************************************\n");printf("\t**\n");printf("\t*學(xué)生成績(jī)管理系統(tǒng)*\n");printf("\t**\n");printf("\t*[1]增加學(xué)生成績(jī)[2]查看學(xué)生成績(jī)*\n");printf("\t*[3]查找學(xué)生成績(jī)[4]刪除學(xué)生成績(jī)*\n");printf("\t*[5]統(tǒng)計(jì)（總成績(jī)和平均分）[6]輸出不及格人數(shù)*\n");print