c语言标准化考试系统课程设计解读

课程报告课程名称：标准化考试系统专业班级：学生姓名：学号：任课教师：学期：课程报告任务书成绩评定教师：1 需求分析设计一个标准化考试系统，让学生和老师都能登录。

老师可以输入试题、修改试题，学生可以答题、查分，实现不同功能。

2 概要设计int main()Int jiao_deng(struct jiaoshi su) /*教师登录验证*/void jiao_xin(struct jiaoshi su) /*将教师的用户信息存入文件*/ void jiao_xin(struct jiaoshi su) /*将教师的用户信息存入文件*/ void jiao_xun(struct tiku tm) /*教师验证通过后，可对题目进行修改*/ void jiao_zeng(struct tiku tm) /*在原有文件基础上，进行新增题目*/ Voidxiu_gai(struct tiku tm,int n) /*修改函数*/int xue_deng(struct xuesheng sb) /*学生登录验证*/void xue_xin(struct xuesheng sb) /*将学生的用户信息存入文件*/3 详细设计#include<stdio.h> #include<stdlib.h> #include<string.h> int count=0;struct jiaoshi{ //教师用户信息结构体 char username[20]; //用户名 char password[12]; //用户密码 }su;struct xuesheng{ //学生用户信息结构体 char username1[20]; //用户名 char password1[12]; //用户密码}sb;struct tiku{ //题库结构体 int nb; //题号 char tigan[100]; //题目内容 char option1[80]; //选项 char option2[80]; char option3[80]; char option4[80];char daan[10]; //答案 }tm;struct chaxun{ int num;char name[20];int chengji;}ch;void jiao_xin(struct jiaoshi su);void xue_xin(struct xuesheng su);void jiao_cha(struct tiku tm);void jiao_zeng(struct tiku tm);void xue_kaoshi(struct tiku tm);void xue_cha(struct chaxun ch,int chengji);void xue_chax(struct chaxun ch);void xue_hao(struct chaxun ch);void xing_ming(struct chaxun ch);void cheng_ji(struct chaxun ch);int xue_deng(struct xuesheng sb);int jiao_deng(struct jiaoshi su);void jiao_xun(struct tiku tm);void cha_tihao(struct tiku tm);void xiu_gai(struct tiku tm,int n);int main(){int choice,choice1,choice2;printf("\t\t\t欢迎进入标准化考试系统\n");printf("\t\t\t选择1:以学生身份登录\n");printf("\t\t\t选择2:以教师身份登录\n");printf("\t\t提示：如果你是第一次使用该系统，请先注册你的基本信息!\n");while(1){printf("\t\t\t请输入你的选择项:");scanf("%d",&choice);getchar();if(choice==1||choice==2)break;elseprintf("\t\t\t对不起，输入有误，请重新输入！\n");}if(choice==1)while(1){{printf("\n");printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~\n");printf("\t\t\t选择1:注册！\n");printf("\t\t\t选择2:开始考试！\n");printf("\t\t\t选择3:成绩查询！\n");printf("\t\t\t选择0:退出\n");printf("\n");printf("\t\t\t请输入你的选择:");scanf("%d",&choice1);switch(choice1){case 1: xue_xin(sb); break; //调用文件，录入用户信息case 2: xue_kaoshi(tm); break; //调用函数，开始考试case 3: xue_chax(ch); break; //调用文件，查询信息case 0: return;}}}if(choice==2)while(1){{printf("\n");printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~\n");printf("\t\t\t选择1:注册！\n");printf("\t\t\t选择2:查看题库中的题目\n");printf("\t\t\t选择3:向题库中增加题目\n");printf("\t\t\t选择4:对题库题目进行修改\n");printf("\t\t\t选择0:退出\n");printf("\t\t\t请输入你的选择:");scanf("%d",&choice2);switch(choice2){case 1:jiao_xin(su); break; //调用文件，录入用户信case 2:jiao_cha(tm); break; //调用文件开始录入题目case 3:jiao_zeng(tm); break; //调用文件,增加题目case 4:jiao_xun(tm); break; //调用文件，对题库进行修改case 0: return;}}}}void jiao_xin(struct jiaoshi su) /*将教师的用户信息存入文件*/{FILE *fp;int i;if((fp=fopen("g:\\标准化考试.txt","a"))==NULL){printf("文件打开有误!\n");exit(0);}for(i=1;i<=1;i++){printf("请输入第%d个用户的姓名和密码:",i);scanf("%s%s",ername,su.password);fprintf(fp,"%s %s\n",ername,su.password);}if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}void xue_xin(struct xuesheng sb) /*将学生的用户信息存入文件*/{FILE *fp;int i;if((fp=fopen("g:\\标准化考试.txt","a"))==NULL){printf("文件打开有误!\n");exit(0);}for(i=1;i<=1;i++){printf("请输入第%d个用户的姓名和密码:",i);scanf("%s%s",ername1,sb.password1);fprintf(fp,"%s %s\n",ername1,sb.password1);}if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}void jiao_cha(struct tiku tm) /*查看题库中的题目*/{FILE *fp;while(1){if(jiao_deng(su)==0){printf("\t\t对不起，用户名或密码错误！请重新输入！\n");}else{printf("\t\t*登录成功，现在可以查看试题了！*\n");break;}}if((fp=fopen("g:\\标准化考试.txt","r"))==NULL){printf("文件打开有误!\n");exit(0);}while(!feof(fp)){printf("\n");fscanf(fp,"%d %s %s %s %s %s %s",&tm.nb,tm.tigan,tm.option1,tm.opti on2,tm.option3,tm.option4,tm.daan);printf("%d%s\n",tm.nb,tm.tigan);printf("%s\n",tm.option1);printf("%s\n",tm.option2);printf("%s\n",tm.option3);printf("%s\n",tm.option4);printf("\n");printf("\t\t\t答案：%s\n",tm.daan);}if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}void jiao_zeng(struct tiku tm) /*在原有文件基础上，进行新增题目*/{FILE *fp;int i;int n;while(1){if(jiao_deng(su)==0){printf("\t\t对不起，用户名或密码错误！请重新输入！\n");}else{printf("\t\t*登录成功，欢迎使用*\n");break;}}printf("请输入本次要添加的题目个数n:");scanf("%d",&n);if((fp=fopen("g:\\标准化考试.txt","a"))==NULL){printf("文件打开有误!\n");exit(0);}for(i=1;i<=n;i++){printf("请输入题号:");scanf("%d",&tm.nb );printf("请输入第%d个题目的题干:\n",tm.nb);scanf("%s",tm.tigan );printf("请输入答案:\n");printf("A:");scanf("%s",tm.option1 );printf("B:");scanf("%s",tm.option2 );printf("C:");scanf("%s",tm.option3 );printf("D:");scanf("%s",tm.option4 );printf("请输入第%d个题目的答案：",tm.nb);scanf("%s",tm.daan );fprintf(fp,"%d %s %s %s %s %s %s\n",tm.nb,tm.tigan,tm.option1,tm.op tion2,tm.option3,tm.option4,tm.daan);}if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}void xue_kaoshi(struct tiku tm) /*读出文件，学生开始答题,并将成绩存入文件*/{FILE *fp;int i;int j,k;char s[10];int chengji=0;while(1){if(xue_deng(sb)==0){printf("\t\t对不起，用户名或密码错误！请重新输入！\n");}else{printf("\t恭喜你登陆成功，现在可以开始考试了！\n");break;}}if((fp=fopen("g:\\标准化考试.txt","r"))==NULL){printf("文件打开有误!\n");exit(0);}printf("\t\t##共有三种难度系数1-2-3##");printf("请选择难度系数：");scanf("%d",&j);if(j==1){k=10;}if(j==2){k=20;}if(j==3){k=30;}for(i=1;i<=k;i=i+j){printf("\n");fscanf(fp,"%d %s %s %s %s %s %s",&tm.nb,tm.tigan,tm.option1,tm.opti on2,tm.option3,tm.option4,tm.daan);printf("%d%s\n",tm.nb,tm.tigan);printf("%s\n",tm.option1);printf("%s\n",tm.option2);printf("%s\n",tm.option3);printf("%s\n",tm.option4);printf("\n");//printf("%s\n",tm.daan);printf("请输入你的选项：");scanf("%s",s);if(strcmp(tm.daan,s)==0)chengji=chengji+10;}printf("你的成绩是：%d\n",chengji);printf("\t\t为方便你以后查询成绩，请再次输入你的信息：\n");xue_cha(ch,chengji);if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}void xue_cha(struct chaxun ch,int chengji) /*考试结束，将成绩录入文件*/{FILE *fp;int i;if((fp=fopen("g:\\标准化考试.txt","a"))==NULL){printf("文件打开有误!\n");exit(0);}/*printf("请输入你的学号和姓名:");scanf("%d %s ",&ch.num,);printf("请输入你本次考试的成绩：");*/printf("请输入你本次考试的成绩：");while(1){scanf("%d",&i);if(i==chengji)printf("请输入你的学号和姓名和成绩:");scanf("%d %s ",&ch.num,,&ch.chengji );fprintf(fp,"%d %s %d\n",ch.num,,chengji);break;}else{printf("\t\t对不起，你输入的成绩与本次考试成绩有误，请重新输入！");}}//fprintf(fp,"%d %s\n",ch.num,);if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}void xue_chax(struct chaxun ch) /*成绩查询函数1.按学号2.按姓名3.按成绩*/{int choice;printf("\t\t\t选择1，按学号查询成绩\n");printf("\t\t\t选择2，按姓名查询成绩\n");printf("\t\t\t选择3，按成绩信息\n");printf("请输入你的选择：");scanf("%d",&choice);switch(choice){case 1:xue_hao(ch); break;case 2:xing_ming(ch); break;case 3:cheng_ji(ch); break;}}void xue_hao(struct chaxun ch) /*按学号查询成绩*/{FILE *fp;//int i;int num;int flag=0;if((fp=fopen("g:\\标准化考试.txt","r"))==NULL){printf("文件打开有误!\n");exit(0);}printf("请输入你的学号:");scanf("%d",&num);while(!feof(fp)){fscanf(fp,"%d%s%d",&ch.num,,&ch.chengji);if(num==ch.num){printf("学号：%d\t姓名：%s\t成绩：%d\n",ch.num,,ch.chengji);flag=1;break;}}if(flag==0){printf("对不起，没有找到，请检查你的输入是否正确！");}if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}void xing_ming(struct chaxun ch) /*按姓名查询成绩*/{FILE *fp;char name[20];int flag=0;if((fp=fopen("g:\\标准化考试.txt","r"))==NULL){printf("文件打开有误!\n");exit(0);}printf("请输入你的姓名：");scanf("%s",name);while(!feof(fp))fscanf(fp,"%d%s%d",&ch.num,,&ch.chengji);if(strcmp(name,)==0){printf("学号：%d\t姓名：%s\t成绩：%d\n",ch.num,,ch.chengji);flag=1;break;}}if(flag==0){printf("对不起，没有找到，请检查你的输入是否正确！");}if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}void cheng_ji(struct chaxun ch) /*按成绩查询信息*/{FILE *fp;int chengji;int flag=0;if((fp=fopen("g:\\标准化考试.txt","r"))==NULL){printf("文件打开有误!\n");exit(0);}printf("请输入你的成绩:");scanf("%d",&chengji);while(!feof(fp)){fscanf(fp,"%d%s%d",&ch.num,,&ch.chengji);if(chengji==ch.chengji){printf("学号：%d\t姓名：%s\t成绩：%d\n",ch.num,,ch.chengji);flag=1;}if(flag==0){printf("对不起，没有找到，请检查你的输入是否正确！");}if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}int xue_deng(struct xuesheng sb) /*学生登录验证*/{FILE *fp;int flag=0;char name[20];char password[12];printf("\n");printf("\t\t>>>>>请先登录该系统<<<<<\n\n");printf("\t\t>>>>>请输入你的登录名和密码：");scanf("%s%s",name,password);if((fp=fopen("g:\\标准化考试.txt","r"))==NULL){printf("文件打开有误!\n");exit(0);}while(!feof(fp)){fscanf(fp,"%s%s",ername1,sb.password1);if(strcmp(name,ername1)==0&&strcmp(password,sb.password1)==0) {flag=1;break;}}if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}return flag;}int jiao_deng(struct jiaoshi su) /*教师登录验证*/{FILE *fp;int flag=0;char name[20];char password[12];printf("\n");printf("\t\t>>>>>请先登录该系统<<<<<\n\n");printf("\t\t>>>>>请输入你的登录名和密码：");scanf("%s%s",name,password);if((fp=fopen("g:\\标准化考试.txt","r"))==NULL){printf("文件打开有误!\n");exit(0);}while(!feof(fp)){fscanf(fp,"%s%s",ername,su.password);if(strcmp(name,ername)==0&&strcmp(password,su.password)==0) {flag=1;break;}}if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}return flag;}void jiao_xun(struct tiku tm) /*教师验证通过后，可对题目进行修改*/{int choice;while(1){if(jiao_deng(su)==0){printf("\t\t对不起，用户名或密码错误！请重新输入！\n");}else{printf("\t\t*登录成功，欢迎使用*\n");break;}}while(1){printf("\n");printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~\n");printf("\t\t请选择按何种方式进行修改！\n");printf("\t\t选择1：按题号查找，并修改！\n");printf("\t\t选择2：输入部分题目内容查找并进行修改！\n");printf("\n");printf("\t\t\t请输入你的选择:");scanf("%d",&choice);switch(choice){case 1: cha_tihao(tm); break; //按题号查找，并修改case 2: return; //输入部分题目内容查找并进行修改！}}}void cha_tihao(struct tiku tm) /*先查询出题目，然后调用函数进行修改*/{int n;FILE *fp;int flag=0;printf("请输入你要修改的题目的题号：");scanf("%d",&n);if((fp=fopen("g:\\标准化考试.txt","r"))==NULL){printf("文件打开有误!\n");exit(0);}while(!feof(fp)){printf("\n");fscanf(fp,"%d %s %s %s %s %s %s",&tm.nb,tm.tigan,tm.option1,tm.option2,tm.option3,tm.option4,tm.daan);if(n==tm.nb){printf("%d%s\n",tm.nb,tm.tigan);printf("%s\n",tm.option1);printf("%s\n",tm.option2);printf("%s\n",tm.option3);printf("%s\n",tm.option4);printf("\t\t\t答案：%s\n",tm.daan);printf("\n");printf("%d",ftell(fp));flag=1;break;}}if(flag==0){printf("对不起，没有找到，请检查你的输入是否正确！");}if(flag==1)xiu_gai(tm,n);if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}void xiu_gai(struct tiku tm,int n) /*修改函数*/{FILE *fp;int i;if((fp=fopen("g:\\标准化考试.txt","a"))==NULL){printf("文件打开有误!\n");exit(0);}for(i=1;i<=1;i++){printf("请输入改后题目的题号:");scanf("%d",&tm.nb );printf("请输入改后题目的题干:\n");scanf("%s",tm.tigan );printf("A:\n");scanf("%s",tm.option1 );printf("B:\n");scanf("%s",tm.option2 );printf("C:\n");scanf("%s",tm.option3 );printf("D:\n");scanf("%s",tm.option4 );printf("请输入改后第题的答案：");scanf("%s",tm.daan );fprintf(fp,"%d %s %s %s %s %s %s\n",tm.nb,tm.tigan,tm.option1,tm.op tion2,tm.option3,tm.option4,tm.daan);}if(fclose(fp)){printf("无法关闭此文件!\n");exit(0);}}4 调试分析登录时，解决账号密码错误问题，修改试题后存入的问题。