用户管理系统 + 口算练习

----------------------------------------------------- 2019/09/09 -----------------------------------------------------

修复打开文件却未关闭导致删号未完全删除的 Bug

----------------------------------------------------- 2019/07/14 -----------------------------------------------------

添加自我上传题目功能，输入表达等式即可.

修复若干 Bug

----------------------------------------------------- 2019/07/13 -----------------------------------------------------

用户登录、注册功能.

我要刷题

错题重刷

刷题记录

AC 过的题

WA 过的题

管理员特用功能（第一名注册者默认管理员）

{

删除账号

取消管理员

设置管理员

}

只需修改开头宏定义 Root 路径即可.

#include <io.h>
#include <ctime>
#include <cstring>
#include <iostream>
#include <algorithm>
#include <windows.h>
#include <bits/stdc++.h>
#define eps 1e-2
#define Root "这里填地址\\User\\"
using namespace std;struct User
{char id[10], password[20];bool flag;
};struct Equation
{double num1, num2;char sym[3];double ans;
};struct date
{int num;int year, month, day;int hour, minute, second;
};char User_txt[100];
char Assist_txt[100];
char Wronged_txt[100];
char Id_Road_txt[100];
char Accepted_txt[100];
char Recorder_txt[100];
char Attempted_txt[100];void Compose(char tmp[], char s1[], char s2[])
{strcpy(tmp, s1);strcat(tmp, s2);
}void User_inf_init(char id[])
{char tmp[100];Compose(tmp, id, "\\");Compose(Id_Road_txt, Root, tmp);Compose(Assist_txt, Id_Road_txt, "Assist.txt");Compose(Wronged_txt, Id_Road_txt, "Wronged.txt");Compose(Accepted_txt, Id_Road_txt, "Accepted.txt");Compose(Recorder_txt, Id_Road_txt, "Recorder.txt");Compose(Attempted_txt, Id_Road_txt, "Attempted.txt");
}void Save(char name[], struct Equation equ)
{FILE *fp;fp = fopen(name, "ab");fwrite(&equ, sizeof(equ), 1, fp);fclose(fp);
}void Print_Equ(struct Equation equ)
{printf("%.2f %s %.2f = ", equ.num1, equ.sym, equ.num2);
}bool Check(struct Equation equ, int &Total, int &Accpted)
{Print_Equ(equ);double ans;scanf("%lf", &ans);Total++;if(fabs(ans - equ.ans) < 2.0 * eps){Accpted++;SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |FOREGROUND_GREEN);printf("Yes\n");SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY | FOREGROUND_BLUE | FOREGROUND_RED | FOREGROUND_GREEN);return 1;}else{SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |FOREGROUND_RED);printf("No\n");printf("正确答案：%f\n", equ.ans);SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY | FOREGROUND_BLUE | FOREGROUND_RED | FOREGROUND_GREEN);return 0;}
}Equation Create_Equ(int Max)
{struct Equation equ;equ.num1 = fmod(int(rand() * 2.71828 * 100.0) / 100.0, Max);equ.num2 = fmod(int(rand() * 2.71828 * 100.0) / 100.0, Max);if(equ.num1 < equ.num2)swap(equ.num1, equ.num2);int sym = rand() % 4;switch(sym){case 0:strcpy(equ.sym, "+"), equ.ans = equ.num1 + equ.num2;break;case 1:strcpy(equ.sym, "-"), equ.ans = equ.num1 - equ.num2;break;case 2:strcpy(equ.sym, "×"), equ.ans = equ.num1 * equ.num2;break;case 3:strcpy(equ.sym, "÷"), equ.ans = equ.num1 / equ.num2;break;}equ.ans = (int)(equ.ans * 100) / 100.0;return equ;
}int First_Test()
{int Max;printf("请输入最大值：");scanf("%d", &Max);char ch;int Total = 0;int Accepted = 0;while((ch = getchar()) != 'E'){system("cls");struct Equation equ = Create_Equ(Max);if(!Check(equ, Total, Accepted)){Save(Attempted_txt, equ);Save(Wronged_txt, equ);}elseSave(Accepted_txt, equ);getchar();}printf("\n总题数：%d\n正确数：%d\n正确率：%.2f%\n", Total, Accepted, 100.0 * Accepted / Total);return Accepted;
}int Second_Test()
{int Total = 0;int Accepted = 0;struct Equation equ;FILE *fp1 = fopen(Attempted_txt, "rb");FILE *fp2 = fopen(Assist_txt, "wb");FILE *fp3 = fopen(Accepted_txt, "ab");char ch;while(!feof(fp1) && (ch = getchar()) != 'E'){system("cls");fread(&equ, sizeof(equ), 1, fp1);if(!feof(fp1)){if(!Check(equ, Total, Accepted))fwrite(&equ, sizeof(equ), 1, fp2);elsefwrite(&equ, sizeof(equ), 1, fp3);getchar();}}while(!feof(fp1)){fread(&equ, sizeof(equ), 1, fp1);if(!feof(fp1))fwrite(&equ, sizeof(equ), 1, fp2);}fclose(fp1);fclose(fp2);fclose(fp3);remove(Attempted_txt);rename(Assist_txt, Attempted_txt);printf("\n总题数：%d\n正确数：%d\n正确率：%.2f%\n", Total, Accepted, 100.0 * Accepted / Total);getchar();return Accepted;
}int Lasted_Recorder(bool flag)
{struct date t;FILE *fp = fopen(Recorder_txt, "rb");if(flag)printf("刷题数\t\t日期\n\n");while(!feof(fp)){fread(&t, sizeof(t), 1, fp);if(!feof(fp) && flag){printf("  %d\t%d/", t.num, t.year);if((int)(log10(t.month) + 1) != 2)printf("0");printf("%d/", t.month);if((int)(log10(t.day) + 1) != 2)printf("0");printf("%d ", t.day);if((int)(log10(t.hour) + 1) != 2)printf("0");printf("%d:", t.hour);if((int)(log10(t.minute) + 1) != 2)printf("0");printf("%d:", t.minute);if((int)(log10(t.second) + 1) != 2)printf("0");printf("%d\n", t.second);}}fclose(fp);if(flag)getchar(), getchar();system("cls");return t.num;
}void Update_Recorder(int num, bool flag)
{time_t timep;struct tm *p;time (&timep);p = gmtime(&timep);struct date t;t.year = 1900 + p->tm_year;t.month = 1 + p->tm_mon;t.day = p->tm_mday;t.hour = 8 + p->tm_hour;t.minute = p->tm_min;t.second = p->tm_sec;FILE *fp = fopen(Recorder_txt, "ab");t.num = flag ? num + Lasted_Recorder(0) : 0;fwrite(&t, sizeof(t), 1, fp);fclose(fp);
}Equation Equ_input()
{struct Equation equ;char s[100];scanf("%s", s);int len = strlen(s);int integer, decimal;integer = decimal = 0;bool dot = 0;int flag = 0;for(int i = 0; i < len; ++i){if(!isdigit(s[i]) && s[i] != '.' && s[i] != '='){switch(s[i]){case '+':strcpy(equ.sym, "+");break;case '-':strcpy(equ.sym, "-");break;case '*':strcpy(equ.sym, "×");break;case '/':strcpy(equ.sym, "÷");break;}s[i] = ' ';}else if(s[i] == '=')s[i] = ' ';}int pos = 0;stringstream ss;ss << s;double num;while(ss >> num){switch(pos){case 0:equ.num1 = num;break;case 1:equ.num2 = num;break;case 2:equ.ans = num;break;}pos++;}return equ;
}int Third_Test()
{char ch;int Total, Accepted;Total = Accepted = 0;while((ch = getchar()) != 'E'){system("cls");printf("自我检测\n\n");struct Equation equ = Equ_input();double ans;if(!strcmp(equ.sym, "+"))ans = equ.num1 + equ.num2;else if(!strcmp(equ.sym, "-"))ans = equ.num1 - equ.num2;else if(!strcmp(equ.sym, "×"))ans = equ.num1 * equ.num2;else if(!strcmp(equ.sym, "÷"))ans = equ.num1 / equ.num2;swap(ans, equ.ans);if(fabs(ans - equ.ans) < 2.0 * eps){Accepted++;SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |FOREGROUND_GREEN);printf("Yes\n");SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY | FOREGROUND_BLUE | FOREGROUND_RED | FOREGROUND_GREEN);Save(Accepted_txt, equ);}else{SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |FOREGROUND_RED);printf("No\n");printf("正确答案：%f\n", equ.ans);SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY | FOREGROUND_BLUE | FOREGROUND_RED | FOREGROUND_GREEN);Save(Attempted_txt, equ);Save(Wronged_txt, equ);}getchar();}Update_Recorder(Accepted, 1);
}bool Print_User_Windows(char id[], bool flag)
{system("cls");printf("[%s]\n\n", id);printf("1.我要刷题\n");printf("2.错题重刷\n");printf("3.自我检测\n");printf("4.刷题记录\n");printf("5.Accepted\n");printf("6.Wrong Answer\n");printf("7.注销账号\n");if(flag){printf("8.删除账号\n");printf("9.取消管理员\n");printf("10.设置管理员\n");}return 1;
}void Show(char name[])
{if(!strcmp(name, Accepted_txt))SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |FOREGROUND_GREEN);else if(!strcmp(name, Wronged_txt))SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |FOREGROUND_RED);FILE *fp = fopen(name, "rb");int cnt = 1;struct Equation equ;while(!feof(fp)){fread(&equ, sizeof(equ), 1, fp);if(!feof(fp))printf("%d. %.2f %s %.2f = %.2f\n", cnt++, equ.num1, equ.sym, equ.num2, equ.ans);}fclose(fp);SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY | FOREGROUND_GREEN | FOREGROUND_BLUE | FOREGROUND_RED);getchar();getchar();
}void Delete_User()
{FILE *fp1 = fopen(User_txt, "rb");struct User user;while(!feof(fp1)){fread(&user, sizeof(user), 1, fp1);if(!feof(fp1))printf("%s\t%s\t%s\n", user.id, user.password, user.flag ? "管理员" : "非管理员");}fclose(fp1);char User_Assist_txt[100];Compose(User_Assist_txt, Root, "User_Assist.txt");fp1 = fopen(User_txt, "rb");FILE *fp2 = fopen(User_Assist_txt, "wb");printf("请输入删除 ID：");char D_id[100];scanf("%s", D_id);while(!feof(fp1)){fread(&user, sizeof(user), 1, fp1);if(!feof(fp1) && strcmp(D_id, user.id))fwrite(&user, sizeof(user), 1, fp2);}fclose(fp1);fclose(fp2);remove(User_txt);rename(User_Assist_txt, User_txt);User_inf_init(D_id);remove(Accepted_txt);remove(Wronged_txt);remove(Attempted_txt);remove(Recorder_txt);Compose(User_Assist_txt, Root, D_id);rmdir(User_Assist_txt);
}void Update_Adm(bool flag)
{FILE *fp1 = fopen(User_txt, "rb");struct User user;while(!feof(fp1)){fread(&user, sizeof(user), 1, fp1);if(!feof(fp1))printf("%s\t%s\t%s\n", user.id, user.password, user.flag ? "管理员" : "非管理员");}fclose(fp1);printf("请输入所%s管理员的Id：", flag ? "设置" : "取消");char Id[100];scanf("%s", Id);char User_Assist_txt[100];Compose(User_Assist_txt, Root, "User_Assist.txt");fp1 = fopen(User_txt, "rb");FILE *fp2 = fopen(User_Assist_txt, "wb");while(!feof(fp1)){fread(&user, sizeof(user), 1, fp1);if(!feof(fp1)){if(!strcmp(Id, user.id))user.flag = flag;fwrite(&user, sizeof(user), 1, fp2);}}fclose(fp1);fclose(fp2);remove(User_txt);rename(User_Assist_txt, User_txt);
}void User_Windows(char id[], bool flag)
{User_inf_init(id);while(Print_User_Windows(id, flag)){int dir;scanf("%d", &dir);if(dir == 1)Update_Recorder(First_Test(), 1);else if(dir == 2)Update_Recorder(Second_Test(), 1);else if(dir == 3)Update_Recorder(Third_Test(), 1);else if(dir == 4)Lasted_Recorder(1);else if(dir == 5)Show(Accepted_txt);else if(dir == 6)Show(Wronged_txt);else if(dir == 7)return;else if(flag){if(dir == 8){Delete_User();User_inf_init(id);}else if(dir == 9)Update_Adm(0);else if(dir == 10)Update_Adm(1);}else{printf("输入非法\n");getchar();getchar();}}
}void Login()
{system("cls");char id[10];char pw[10];printf("请输入账号：");scanf("%s", id);printf("请输入密码：");scanf("%s", pw);FILE *fp = fopen(User_txt, "rb");int flag = 0;struct User tmp;while(!feof(fp)){fread(&tmp, sizeof(tmp), 1, fp);if(!feof(fp) && !strcmp(tmp.id, id)){if(!strcmp(tmp.password, pw))flag = 1;elseflag = 2;break;}}fclose(fp);switch(flag){case 0:printf("\n账号不存在\n"), getchar(), getchar();break;case 1:User_Windows(tmp.id, tmp.flag);break;case 2:printf("\n密码错误\n"), getchar(), getchar();break;}
}void Create_User_inf(char name[])
{FILE *fp = fopen(name, "wb");fclose(fp);
}void Create_User(struct User tmp)
{User_inf_init(tmp.id);if(!tmp.flag)tmp.flag = 0;FILE *fp = fopen(User_txt, "ab");fwrite(&tmp, sizeof(tmp), 1, fp);fclose(fp);_mkdir(Id_Road_txt);Create_User_inf(Accepted_txt);Create_User_inf(Wronged_txt);Create_User_inf(Attempted_txt);Create_User_inf(Recorder_txt);Update_Recorder(0, 0);
}void Register()
{system("cls");User tmp;char id[10], pw[20];printf("请输入用户名：");scanf("%s", id);printf("请输入密码：");scanf("%s", pw);bool tmp_flag;if(access(Root, 0)){_mkdir(Root);tmp_flag = 1;}elsetmp_flag = 0;FILE *fp = fopen(User_txt, "rb");if(!fp){fclose(fp);fp = fopen(User_txt, "wb");fclose(fp);fp = fopen(User_txt, "rb");}bool flag = 0;while(!feof(fp)){fread(&tmp, sizeof(tmp), 1, fp);if(!feof(fp)){if(!strcmp(tmp.id, id)){flag = 1;break;}}}fclose(fp);if(flag){printf("该用户名已注册\n");getchar();getchar();}else{strcpy(tmp.id, id);strcpy(tmp.password, pw);tmp.flag = tmp_flag;Create_User(tmp);}
}bool Main_Windows()
{printf("1.登录\n");printf("2.注册\n");printf("3.退出\n");return 1;
}void Main()
{Compose(User_txt, Root, "User.txt");while(Main_Windows()){int dir;scanf("%d", &dir);if(dir == 1)Login();else if(dir == 2)Register();else if(dir == 3)exit(0);else{printf("输入非法\n");getchar();getchar();}system("cls");}
}int main()
{srand(time(NULL));Main();return 0;
}

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