支持管理员和普通用户两种角色登录
支持用户注册和密码修改
支持杂志增删改查和统计
复制代码
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1131#include <stdio.h> #include <stdlib.h> #include <string.h> #include <conio.h> #include <time.h> ///结构类型定义区 typedef struct _Magzine { char magid[20]; //杂志刊号,关键字,创建后不允许修改 char magname[30]; //杂志名称 char magunit[30]; //杂志单位 float price; //单价 _Magzine() //默认构造函数进行初始化 { memset(magid, 0, 20); memset(magname, 0, 30); memset(magunit, 0, 30); price = 0; } }Magzine; typedef struct _Customer { char account[20];//客户编号,也是账号,关键字,创建后不允许修改 char name[20]; //姓名 char sex[3]; //性别 char tel[12]; //电话 char unit[20]; //单位 char pwd[20]; //客户密码 _Customer() //默认构造函数进行初始化 { memset(name,0,20); memset(sex,0,3); memset(tel,0,12); memset(account,0,20); memset(unit,0,20); memset(pwd,0,20); } }Customer; typedef struct _CMR //客户订阅杂志关系结构 { char account[20]; //客户编号 char magid[20]; //杂志刊号 int subsnum; //订阅数量 char duetime[9]; //订阅期限,格式20210615(年月日) _CMR() //默认构造函数进行初始化 { memset(account, 0, 20); memset(magid, 0, 20); memset(duetime, 0, 9); subsnum = 0; } }CMR; //全局变量区 bool bmanagerlogin = false; //全局变量,当前登录账户类型 true--管理员;false--普通用户 char useraccount[20] = {0}; //当前登录的普通用户账号,前提是bmanagerlogin为false Customer customer[50]; //用户信息 --用户设定最多50个 int nCustomer = 0; //当前用户数量 Magzine magzine[20]; //杂志信息 -- 杂志设定最大20种 int nMagzine = 0; //当前杂志数量 CMR cmr[1000]; //客户订阅杂志信息 int ncmr = 0; //客户订阅杂志总数量 //函数区 //读取客户信息 void readcustomerinfo(FILE *fp) { char buf[200] = {0}; nCustomer = 0; if(fgets(buf,200,fp) != NULL) { nCustomer = atoi(buf); } for(int i=0;i<nCustomer;i++) { if(fgets(buf, sizeof(buf), fp) != NULL) { sscanf(buf,"%st%st%st%st%st%s", customer[i].account, customer[i].name, customer[i].sex, customer[i].tel, customer[i].unit, customer[i].pwd); } else { nCustomer = i; break; } } } //读取杂志信息 void readmagzineinfo(FILE *fp) { char buf[200] = {0}; nMagzine = 0; if(fgets(buf,200,fp) != NULL) { nMagzine = atoi(buf); } for(int i=0;i<nMagzine;i++) { if(fgets(buf, sizeof(buf), fp) != NULL) { sscanf(buf,"%st%st%st%f", magzine[i].magid, magzine[i].magname, magzine[i].magunit, &magzine[i].price); } else { nMagzine = i; break; } } } //读取客户订阅杂志信息 void readcmrinfo(FILE *fp) { char buf[200] = {0}; ncmr = 0; if(fgets(buf,200,fp) != NULL) { ncmr = atoi(buf); } for(int i=0;i<ncmr;i++) { if(fgets(buf, sizeof(buf), fp) != NULL) { sscanf(buf,"%st%st%dt%s", cmr[i].account, cmr[i].magid, &cmr[i].subsnum, cmr[i].duetime); } else { ncmr = i; break; } } } //读取文件信息 bool readfileinfo() { FILE *fp; if((fp = fopen("customer.txt","r")) == NULL) { printf("customer.txt打开失败。"); } else { readcustomerinfo(fp); readmagzineinfo(fp); readcmrinfo(fp); fclose(fp); return true; } return false; } //保存客户信息 void savecustomerinfo(FILE *fp) { fprintf(fp,"%dn",nCustomer); for(int i=0;i<nCustomer;i++) { fprintf(fp, "%st%st%st%st%st%sn", customer[i].account, customer[i].name, customer[i].sex, customer[i].tel, customer[i].unit, customer[i].pwd); } } //保存杂志信息 void savemagzineinfo(FILE *fp) { fprintf(fp,"%dn",nMagzine); for(int i=0;i<nMagzine;i++) { fprintf(fp, "%st%st%st%fn", magzine[i].magid, magzine[i].magname, magzine[i].magunit, magzine[i].price); } } //保存客户订阅杂志信息 void savecmrinfo(FILE *fp) { fprintf(fp,"%dn",ncmr); for(int i=0;i<ncmr;i++) { fprintf(fp, "%st%st%dt%sn", cmr[i].account, cmr[i].magid, cmr[i].subsnum, cmr[i].duetime); } } //保存文件信息 bool savefileinfo() { FILE *fp; if((fp = fopen("customer.txt","w")) == NULL) { printf("customer.txt打开失败。"); } else { savecustomerinfo(fp); savemagzineinfo(fp); savecmrinfo(fp); fclose(fp); return true; } return false; } //查询指定账号的用户信息 Customer *findcustomer(char account[20]) { for(int i=0;i<nCustomer;i++) { if(strcmp(account,customer[i].account) == 0) return customer+i; } return NULL; } Magzine *findmagzine(char magid[20]) { for(int i=0;i<nMagzine;i++) { if(strcmp(magid,magzine[i].magid) == 0) return magzine+i; } return NULL; } //管理员身份登录,首先校验账号密码;再显示功能菜单 bool managerlogin() { while(1) { system("cls"); char account[20] = {0}; char pwd[20] = {0}; printf("请输入账号:"); scanf("%s",account); printf("请输入密码:"); getchar(); char c = 0; int i = 0; while(i < 20 ) { c = getch(); if (c != 'n' && c != 'r') { pwd[i] = c; putch('*'); i++; } else break; } if(strcmp(account,"admin") != 0 || strcmp(pwd,"123456") != 0) { printf("n账号或密码输入错误,是否继续登录(N键退出,其它键继续):"); int c = getchar(); if(c == 'N' || c=='n') return false; continue; } bmanagerlogin = true; return true; } } bool finduserinfo(char *account,char *pwd) { for(int i=0;i<nCustomer;i++) { if(strcmp(account,customer[i].account) == 0 && strcmp(pwd,customer[i].pwd) == 0) return true; } return false; } bool findcmr(char *useraccount,char *magid) { for(int i=0;i<ncmr;i++) { if(strcmp(cmr[i].account,useraccount) == 0 && strcmp(cmr[i].magid,magid) == 0) return true; } return false; } bool userlogin() { while(1) { system("cls"); char account[20] = {0}; char pwd[20] = {0}; printf("请输入账号:"); scanf("%s",account); printf("请输入密码:"); getchar(); char c = 0; int i = 0; while(i < 20 ) { c = getch(); if (c != 'n' && c != 'r') { pwd[i] = c; putch('*'); i++; } else break; } if(!finduserinfo(account,pwd)) { getchar(); printf("n账号或密码输入错误,是否继续登录(N键退出,其它键继续):"); int c = getchar(); if(c == 'N' || c=='n') return false; continue; } bmanagerlogin = false; strcpy(useraccount,account); return true; } return false; } //注册新的普通用户 void userreg() { printf("请输入新的用户账号:"); scanf("%s",customer[nCustomer].account); if(findcustomer(customer[nCustomer].account) != NULL) { printf("账号已经被使用。n"); return; } printf("请输入新用户姓名:"); scanf("%s",customer[nCustomer].name); printf("请输入新用户性别:"); scanf("%s",customer[nCustomer].sex); printf("请输入新用户联系电话:"); scanf("%s",customer[nCustomer].tel); printf("请输入新用户工作单位:"); scanf("%s",customer[nCustomer].unit); // printf("请输入新用户登录密码:"); char pwd[20] = {0}; char c = 0; int i = 0; while(i++ < 20 && c!= 'n' && c!='r') { c = getch(); pwd[i] = c; putch('*'); } strcpy(customer[nCustomer].pwd,pwd); nCustomer++; printf("n新用户注册完成。n"); } bool systemlogin() { while(1) { system("cls"); printf(" 欢迎使用杂志管理系统nn"); printf(" 1、管理员登录n"); printf(" 2、普通用户登录n"); printf(" 3、普通用户注册n"); printf(" 0、退出系统n"); printf(" n请输入您的选择:"); int sel = 0; scanf("%d",&sel); switch(sel) { case 1: return managerlogin(); break; case 2: return userlogin(); break; case 3: userreg(); break; case 0: exit(0); break; } system("pause"); } return false; } void showmanagermenu() { system("cls"); printf(" 欢迎使用杂志管理系统nn"); printf(" 1、查看所有用户订阅杂志信息n"); printf(" 2、重置用户登录密码n"); printf(" 3、杂志信息管理n"); printf(" 4、用户信息查询n"); printf(" 5、显示所有信息n"); printf(" 6、修改用户信息n"); printf(" 7、删除过期订阅信息n"); printf(" 8、订阅信息统计n"); printf(" 0、退出系统n"); printf(" n请输入您的选择:"); } void showusermenu() { system("cls"); printf(" 欢迎使用杂志管理系统nn"); printf(" 1、修改用户密码n"); printf(" 2、显示所有杂志信息n"); printf(" 3、杂志信息查询n"); printf(" 4、查看已订阅杂志n"); printf(" 5、订阅杂志n"); printf(" 6、取消杂志订阅n"); printf(" 0、退出系统n"); printf(" n请输入您的选择:"); } void showallcustomerinfo() { printf("%20s%20s%20s%20s%20sn","用户账号","姓名","性别","联系电话","工作单位"); for(int i=0;i<nCustomer;i++) { printf("%20s%20s%20s%20s%20sn",customer[i].account,customer[i].name,customer[i].sex,customer[i].tel,customer[i].unit); } } void showallmagzineinfo() { printf("%20s%20s%20s%20sn","杂志刊号","杂志名称","杂志单位","单价"); for(int i=0;i<nMagzine;i++) { printf("%20s%20s%20s%20.1fn",magzine[i].magid,magzine[i].magname,magzine[i].magunit,magzine[i].price); } } void showallcmrinfo() { printf("%20s%20s%20s%20sn","用户姓名","杂志名称","订阅数量","订阅期限"); for(int i=0;i<ncmr;i++) { Customer *pC = findcustomer(cmr[i].account); Magzine *pM = findmagzine(cmr[i].magid); if (pC != NULL && pM != NULL) printf("%20s%20s%20d%20sn",pC->name,pM->magname,cmr[i].subsnum,cmr[i].duetime); } } void showallinfo() { system("cls"); printf(" *************用户信息*************nn"); showallcustomerinfo(); printf("n *************杂志信息*************nn"); showallmagzineinfo(); printf("n ***********用户订阅信息***********nn"); showallcmrinfo(); } void resetcustomerpwd() { system("cls"); printf("请输入要重置密码的用户账号:"); char account[20]; scanf("%s",account); getchar(); Customer *p = findcustomer(account); if(p==NULL) printf("对不起,您输入的账号不存在。"); else { strcpy(p->pwd,"123456"); printf("密码重置完成。"); } getchar(); } void showcustomerinfo() { system("cls"); printf("请输入需要查询的用户账号:"); char account[20]; scanf("%s",account); getchar(); Customer *p = findcustomer(account); if(p == NULL) printf("对不起,您输入的账号不存在。"); else { printf("用户帐号:%20sn",p->account); printf("姓 名:%20sn",p->name); printf("性 别:%20sn",p->sex); printf("联系电话:%20sn",p->tel); printf("工作单位:%20sn",p->unit); } } void updatecustomerinfo() { system("cls"); printf("请输入需要修改信息的用户账号:"); char account[20]; scanf("%s",account); getchar(); Customer *p = findcustomer(account); if(p == NULL) printf("对不起,您输入的账号不存在。"); else { while (1) { system("cls"); printf(" 1、姓名 2、性别n"); printf(" 3、联系电话 4、工作单位n"); printf(" 0、结束修改n"); printf("n 请选择修改项:"); int sel; scanf("%d", &sel); getchar(); if (sel == 0) return; printf("请输入修改后的信息:"); switch (sel) { case 1: scanf("%s", p->name); break; case 2: scanf("%s", p->sex); break; case 3: scanf("%s", p->tel); break; case 4: scanf("%s", p->unit); break; case 0: return; } } } } //删除过期订阅信息 void removeoverdueinfo() { //cmr[500] ncmr time_t timep; struct tm *p; time(&timep); p = localtime(&timep); char now[9] = { 0 }; sprintf(now, "%04d%02d%02d", p->tm_year + 1900, p->tm_mon+1, p->tm_mday); printf("以下过期订阅信息被删除:n"); printf("%20s%20s%20s%20sn", "用户姓名", "杂志名称", "订阅数量", "订阅期限"); int t = 0; for (int i = 0; i < ncmr; i++) { if (strcmp(cmr[i].duetime,now)>=0) { cmr[t++] = cmr[i]; } else { Customer *pC = findcustomer(cmr[i].account); Magzine *pM = findmagzine(cmr[i].magid); printf("%20s%20s%20d%20sn", pC->name, pM->magname, cmr[i].subsnum, cmr[i].duetime); } } ncmr = t; } void showstatmenu() { system("cls"); printf(" ***************订阅信息统计***************nn"); printf(" 1、各杂志订阅量及金额统计n"); printf(" 2、各用户订阅量及金额统计n"); printf(" 3、各杂志订阅性别订阅量及金额统计n"); printf(" 4、各杂志订阅期限统计n"); printf(" 0、结束统计n"); printf("n 请输入您的选择:"); } //统计杂志订阅量及金额 void showmagsubs() { system("cls"); int i, j; int subsnum[50] = { 0 }; for (i = 0; i < nMagzine; i++) { for (j = 0; j < ncmr; j++) { if (strcmp(cmr[j].magid, magzine[i].magid) == 0) subsnum[i] += cmr[j].subsnum; } } printf("%20s%10s%10s%10sn","杂志名称","订阅数量","单价","金额"); for (i = 0; i < nMagzine; i++) { if (subsnum[i] > 0) printf("%20s%10d%10.1f%10.1fn", magzine[i].magname, subsnum[i], magzine[i].price, magzine[i].price*subsnum[i]); } } //统计用户订阅量及金额 void showcustomersubs() { system("cls"); int i, j; int subsnum[50] = { 0 }; float cost[50] = { 0 }; for (i = 0; i < nCustomer; i++) { for (j = 0; j < ncmr; j++) { if (strcmp(cmr[j].account, customer[i].account) == 0) { Magzine *pM = findmagzine(cmr[j].magid); if (pM != NULL) { subsnum[i] += cmr[j].subsnum; cost[i] += pM->price * cmr[j].subsnum; } } } } printf("%20s%10s%10sn", "用户名称", "订阅数量", "金额"); for (i = 0; i < nCustomer; i++) { if (subsnum[i] > 0) printf("%20s%10d%10.1fn", customer[i].name, subsnum[i], cost[i]); } } //各杂志订阅用户性别订阅量及金额统计 void showsexsubs() { system("cls"); int i, j; int subsnum[2] = { 0 }; float cost[2] = { 0 }; for (i = 0; i < nCustomer; i++) { for (j = 0; j < ncmr; j++) { if (strcmp(cmr[j].account, customer[i].account) == 0) { Magzine *pM = findmagzine(cmr[j].magid); if (pM != NULL) { int s = 0; if (strcmp(customer[i].sex, "女") == 0) s = 1; subsnum[s] += cmr[j].subsnum; cost[s] += pM->price * cmr[j].subsnum; } } } } printf("%10s%10s%10sn", "性别", "订阅数量", "金额"); printf("%10s%10d%10.1fn", "男", subsnum[0], cost[0]); printf("%10s%10d%10.1fn", "女", subsnum[1], cost[1]); } void showoverduesubs() { system("cls"); printf("请输入需要查询的订阅有效日期(例如:20210618):"); char overdue[20]; scanf("%s", overdue); getchar(); printf("n订阅期限在%s之前的订阅信息有:n", overdue); printf("%20s%20s%20s%20sn", "用户姓名", "杂志名称", "订阅数量", "订阅期限"); for (int i = 0; i < ncmr; i++) { if (strcmp(cmr[i].duetime, overdue) < 0) { Customer *pC = findcustomer(cmr[i].account); Magzine *pM = findmagzine(cmr[i].magid); if (pC != NULL && pM != NULL) { printf("%20s%20s%20d%20sn", pC->name,pM->magname,cmr[i].subsnum,cmr[i].duetime); } } } } //统计功能 void statcmrinfo() { while (1) { showstatmenu(); int sel; scanf("%d", &sel); switch (sel) { case 1: //各杂志订阅量及金额统计 showmagsubs(); break; case 2: //各用户订阅量及金额统计 showcustomersubs(); break; case 3: //各杂志订阅用户性别订阅量及金额统计 showsexsubs(); break; case 4: //各杂志订阅期限统计 showoverduesubs(); break; case 0: //统计结束 return; } system("pause"); } } void showmagzinemanmenu() { system("cls"); printf(" ***************杂志信息管理**************nn"); printf(" 1、增加杂志 2、删除杂志n"); printf(" 3、修改杂志 4、查询杂志n"); printf(" 0、结束管理n"); printf("n 请输入您的选择:"); } void addmagzine() { while (1) { printf("请输入新杂志刊号:"); scanf("%s", magzine[nMagzine].magid); if (findmagzine(magzine[nMagzine].magid) != NULL) printf("新杂志刊号已经存在,请重新输入。n"); else break; } printf("请输入新杂志名称:"); scanf("%s", magzine[nMagzine].magname); printf("请输入新杂志单位:"); scanf("%s", magzine[nMagzine].magunit); printf("请输入新杂志单价:"); scanf("%f", &magzine[nMagzine].price); nMagzine++; printf("新杂志增加完成。n"); } void removemagzine() { printf("请输入需要删除的杂志刊号:"); char magid[20]; scanf("%s", magid); if (findmagzine(magid) == NULL) printf("指定要删除的杂志刊号不存在。n"); int i,j; //从杂志数组中删除指定刊号的杂志 for (i = 0; i < nMagzine; i++) { if (strcmp(magid, magzine[i].magid) == 0) { for (j = i; j < nMagzine; j++) magzine[j] = magzine[j + 1]; nMagzine--; break; } } //从订阅信息中删除指定刊号杂志的订阅信息 for (i = 0; i < ncmr; i++) { if (strcmp(magid, cmr[i].magid) == 0) { for (j = i; j < ncmr; j++) cmr[j] = cmr[j + 1]; ncmr--; i--; } } printf("删除杂志完成。n"); } void updatemagzine() { printf("请输入需要删除的杂志刊号:"); char magid[20]; scanf("%s", magid); Magzine *pM = findmagzine(magid); if (pM == NULL) printf("指定要删除的杂志刊号不存在。n"); else { while (1) { system("cls"); printf(" 1、杂志名称 2、杂志单位n"); printf(" 3、单价 0、结束修改n"); printf("n 请选择修改项:"); int sel; scanf("%d", &sel); getchar(); if (sel == 0) return; printf("请输入修改后的信息:"); switch (sel) { case 1: scanf("%s", pM->magname); break; case 2: scanf("%s", pM->magunit); break; case 3: scanf("%f", &pM->price); break; case 0: return; } } } } void querymagzine() { printf("请输入需要查询的杂志刊号:"); char magid[20]; scanf("%s", magid); Magzine *pM = findmagzine(magid); if (pM == NULL) printf("指定要查询的杂志刊号不存在。n"); else { printf("杂志刊号:%20sn", pM->magid); printf("杂志名称:%20sn", pM->magname); printf("杂志单位:%20sn", pM->magunit); printf("单 价:%20gn", pM->price); } } //杂志管理 void magzineman() { while (1) { showmagzinemanmenu(); int sel; scanf("%d", &sel); switch (sel) { case 1: //增加杂志 addmagzine(); break; case 2: //删除杂志 removemagzine(); break; case 3: //修改杂志 updatemagzine(); break; case 4://查询杂志 querymagzine(); break; case 0: return; } system("pause"); } } void updateuserpwd() { Customer *pC = findcustomer(useraccount); if(pC == NULL) { printf("错误:当前用户不存在。n"); return; } printf("请输入原密码:"); char pwd[20]; char c = 0; int i = 0; while(i < 20 ) { c = getch(); if (c != 'n' && c != 'r') { pwd[i] = c; putch('*'); i++; } else break; } if(strcmp(pC->pwd,pwd)==0) { printf("n密码输入错误。n"); return; } printf("n请输入新密码:"); c = 0; i = 0; while(i < 20 ) { c = getch(); if (c != 'n' && c != 'r') { pC->pwd[i] = c; putch('*'); i++; } else break; } printf("n密码修改完成。n"); } void querysubsmagzine() { int i; printf("%20s%20s%10s%10s%10sn","杂志刊号","杂志名称","订阅数量","单价","订阅期限"); for(i=0;i<ncmr;i++) { if(strcmp(cmr[i].account,useraccount) == 0) { Magzine *pM = findmagzine(cmr[i].magid); if(pM != NULL) printf("%20s%20s%10d%10.1f%10sn",pM->magid,pM->magname,cmr[i].subsnum,pM->price,cmr[i].duetime); } } } void subsmagzine() { printf("请输入需要订阅的杂志刊号:"); strcpy(cmr[ncmr].account,useraccount); scanf("%s",cmr[ncmr].magid); if(findmagzine(cmr[ncmr].magid) == NULL) { printf("指定的杂志不存在。n"); return; } if(findcmr(useraccount,cmr[ncmr].magid) != NULL) { printf("指定的杂志已经订阅。n"); return; } printf("请输入需要订阅的数量:"); scanf("%d",&cmr[ncmr].subsnum); printf("请输入订阅期限(输入格式:20210617):"); scanf("%s",cmr[ncmr].duetime); ncmr++; printf("订阅成功。n"); } void removecmr() { printf("请输入需要取消订阅的杂志刊号:"); char magid[20]; scanf("%s",magid); int i,j; int t = 0; for (int i = 0; i < ncmr; i++) { //找到订阅信息 if(strcmp(useraccount,cmr[i].account) != 0 || strcmp(magid,cmr[i].magid) != 0) cmr[t++] = cmr[i]; } ncmr = t; printf("杂志取消订阅完成。n"); } void main() { system("mode con cols=120 lines=40"); if(!readfileinfo()) { system("pause"); } //进行系统登录,登录后才能使用系统 bool blogin = systemlogin(); if(blogin) { while(1) { //如果管理员登录,显示管理员功能 if(bmanagerlogin) { showmanagermenu(); int sel = 0; scanf("%d", &sel); getchar(); switch (sel) { case 1: //查看所有用户订阅杂志信息 system("cls"); showallcmrinfo(); break; case 2: //重置用户登录密码 resetcustomerpwd(); break; case 3: //杂志信息管理 magzineman(); break; case 4: //用户信息查询 showcustomerinfo(); break; case 5: //显示所有信息 showallinfo(); break; case 6: //修改用户信息 updatecustomerinfo(); break; case 7: //删除过期订阅信息 removeoverdueinfo(); break; case 8: //订阅信息统计 statcmrinfo(); break; case 0: { getchar(); printf("是否需要保存用户信息(Y/N)?"); char c = getchar(); if (c == 'Y' || c == 'y') savefileinfo(); exit(0); } } system("pause"); } else //否则普通用户登录显示普通用户功能 { showusermenu(); int sel = 0; scanf("%d", &sel); switch (sel) { case 1: //修改用户密码 updateuserpwd(); break; case 2: //显示所有杂志信息 showallmagzineinfo(); break; case 3: //杂志信息查询 querymagzine(); break; case 4: //查看已订阅杂志 querysubsmagzine(); break; case 5: //订阅杂志 subsmagzine(); break; case 6: //取消杂志订阅 removecmr(); break; case 0: { getchar(); printf("是否需要保存用户信息(Y/N)?"); char c = getchar(); if (c == 'Y' || c == 'y') savefileinfo(); exit(0); } } system("pause"); } } } }
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