C语言如何实现酒店预订管理系统

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课设要求：

客房信息管理。

客人预订及入住信息管理。

各种查询和统计功能。

本系统要有通用性、界面美观、操作方便。要考虑系统安全。 可增加其他有用的功能。

头文件function.h

#pragma once#include <stdio.h>#include "struct.h"void color1();//背景颜色void changecolor1();//修改背景颜色void reGISters();//登录,验证密码void showroomtype();//显示房间类型void inquirevacant();//查询选择的房间是否有空房，并输出查询结果。void interface();//显示界面Room* readroom();//从文件里面读出来room放到链表里面void saveroom();//保存文件信息void emptyroom();//清空一个房间void inputroom();//填写一个房间Order* exploitorderhead();//开辟一个订单头void chooseroomtype();//选择房间类型int judgeid();//判断身份证号码是否符合要求int judgephone();//判断电话号是否符合要求11位全数字void openroom();//开房void saveorder();//保存订单Order* readorder();//读取订单int Check_date1();//检验日期是否合法int Check_date2();//检验日期是否合法void deletedisabledorder();//删除失效订单int Check_date3();//检验日期是否合法void checkchar();//将字符串后面的\n去掉void checkchar1();//将字符串后面加上\nvoid changeorder();//修改订单void deleteorder();//删除订单void changeKEY();//修改密码void search3();//查询订单void search2();//查询房间void statistics();//统计订单int time_1();// 检查订单时间是否大于输入时间int Check_date4();void read_();//读取数据void backups();//备份int FindSubstring();//查询字串

头文件struct.h

#pragma oncetypedef struct costomer {    char name[40];    char idcard[20];    char phonenumber[20];}Costomer;typedef struct room {    char roomnumber[10];    char type[10];    int flag;    Costomer u;    struct room* rnext; }Room;typedef struct order {    Room* room_;    int hour[2];    int day[2];    int mon[2];    int year[2];    struct order* onext;}Order;typedef struct administrator {    char username[20];    char passWord[20];}Administrator;

function.c

#include "function.h"#include <stdlib.h >#include "struct.h"#include <string.h>#include <time.h>#include <windows.h>#include <stdio.h>extern Room* rhead;extern Order* ohead;void registers() {    time_t timep;    struct tm* p;    time(&timep);    p = gmtime(&timep);    char s[15], c[15];    FILE* fp = fopen("password.txt", "r");    if (fp == NULL) {        printf("Failed to open file");    }    fgets(s, 14, fp);//读出文件中的密码    fclose(fp);    color1();//根据之前修改的颜色更新系统颜色    printf("\n请输入登录密码:");    gets(c);    while (strcmp(c, s) != 0) { //判断密码是否正确，不正确的话重新输入。        printf("\n密码错误请重试");        gets(c);    }    if (strcmp(c, s) == 0) {        read_();        while (1)        {             system("cls");//清空界面            color1();//根据之前修改的颜色更新系统颜色            printf("\n\n\n\n");            printf(" ***********************************************\n");            printf(" ^_^  ^_^  ^_^  ^_^  ^_^  ^_^  ^_^  ^_^  ^_^ ^_^\n");            printf(" ***********************************************\n");            printf("_______________________________________________\n");            printf("┃                                            ┃\n");            printf("┃              酒店预约管理系统              ┃\n");            printf("┃            欢迎来到白山黑水酒店！          ┃\n");            printf("┃            现在是%d年", 1900 + p->tm_year);            printf("%d月", 1 + p->tm_mon);            printf("%d日", p->tm_mday);            printf("%d时", 8 + p->tm_hour);            printf("         ┃\n");            printf("┃                                            ┃\n");            printf("┃                                            ┃\n");            printf("┃____________________________________________┃\n");            printf("***********************************************\n");            printf("***********************************************\n");            printf("**            1.客户入住信息登记             **\n");            printf("**            2.修改背景颜色                 **\n");            printf("**            3.修改密码                     **\n");            printf("**            4.查询信息                     **\n");            printf("**            5.修改订单信息                 **\n");            printf("**            6.删除订单                     **\n");            printf("**            7.统计信息                     **\n");            printf("**            8.备份                         **\n");            printf("**            9.退出并保存                   **\n");            printf("***********************************************\n");            printf("***********************************************\n");            printf("***********************************************\n");            printf("^_^  ^_^  ^_^  ^_^  ^_^  ^_^  ^_^  ^_^  ^_^ ^_^\n");            printf("***********************************************\n");            printf("               选择操作：");            int m;            char t[20];            scanf("%d", &m);            while (m < 1 || m>9) { printf("\n请按要求输入"); scanf("%d", &m); }            if (m== 9)            {                saveorder();                saveroom();            }            switch (m) {            case 1: { chooseroomtype(); break; }            case 2: {changecolor1(); break; }            case 3:changeKEY(); break;            case 4: { {system("cls");                printf("选择查询类别：\n");                printf("1.查询房间信息\n");                printf("2.查询订单信息\n");                printf("输入选项：");                gets(t);                while ((strcmp(t, "1") != 0) && (strcmp(t, "2") != 0)) {                    printf("\n请按要求输入\n");                    gets(t);                    fflush(stdin);                }                if ((strcmp(t, "1") == 0))search2();//查询房间                if ((strcmp(t, "2") == 0))search3();//查询订单                }; break; }            case 5: {changeorder(); break; }            case 6: {deleteorder(); break; }            case 7: {statistics(); break; }            case 8: {backups(); break; }            case 9: {exit(0); break; }                         }        }     }}Room* readroom()//从文件里面读出来room放到链表里面{    FILE* fp = NULL;    char ch;    Room* rhead;    rhead = (Room*)malloc(sizeof(Room));    if (rhead != NULL)    {        rhead->rnext = NULL;    }    Room* p = rhead;    Room* q = rhead;    if ((fp = fopen("room.txt", "r+")) == NULL)    {        printf("can't open the file\n");        system("pause");        return NULL;    }    while (!feof(fp))    {        p = (Room*)malloc(sizeof(Room));        fgets(p->roomnumber, 20, fp);//读进来的还有换行符        //printf("%s\n",p->roomnumber);        fgets(p->type, 20, fp);//读进来的还有换行符        //printf("%s\n",p->type);        fscanf(fp, "%d", &(p->flag));        //printf("%d\n",p->flag);        ch = fgetc(fp);        ch = fgetc(fp);        q->rnext = p;        q = p;    }    q->rnext = NULL;    fclose(fp);    return rhead;//返回指针的头}void saveroom() {    FILE* fp = NULL;    Room* p = rhead->rnext;    if ((fp = fopen("room.txt", "w")) == NULL)    {        printf("can't open the room file\n");        system("pause");    }     while (p != NULL) {        fputs(p->roomnumber, fp);        fputs(p->type, fp);        fprintf(fp, "%d", p->flag);        fputc('\n', fp);        if (p->rnext != NULL)fputc('\n', fp);        p = p->rnext;    }    fclose(fp);}void emptyroom(char roomnumber_[10])//清空一个房间{    Room* p = rhead->rnext;    while (p != NULL) {        if (strcmp(roomnumber_, p->roomnumber) == 0) {            p->flag = 0;            break;        }        p = p->rnext;     }}int judgeid(char t[]){    int flag = 0;    int i = 0;    for (i = 0; i < 18; i++) {        if (i <= 16)            if (t[i] < '9' && t[i]>'0')flag = 0;            else flag = 1;        if (i == 17)            if (t[i] == 'X' || (t[i] < '9' && t[i]>'0'))                flag = 0;            else flag = 1;    }    return flag;//身份证号码符合规则的话返回0，else返回1.}int judgephone(char t[]) {    int flag = 0;    int i = 0;    for (i = 0; i < 11; i++) {         if (t[i] <= '9' && t[i] >= '0')flag = 0;        else flag = 1;    }    return flag;//电话号符合规则的话返回0，else返回1.}Order* exploitorderhead() {    ohead = (Order*)malloc(sizeof(Order));    if (ohead != NULL)    {        ohead->onext = NULL;        return ohead;    }    else        printf("开辟订单头失败\n");}void chooseroomtype() {    char c[20];    char choice[10];    while (1) {        system("cls");        printf("房间类型:\n");        printf("1.single\n");        printf("2.double\n");        printf("3.triple\n");        printf("4.four\n");        printf("5.返回上一层\n");        printf("请输入你的选择:");        fflush(stdin);        rewind(stdin);        gets(c);        while ((strcmp(c, "1") != 0) && (strcmp(c, "2") != 0) && (strcmp(c, "3") != 0) && (strcmp(c, "4") != 0) && (strcmp(c, "5") != 0)) {            printf("选择有误，请重新输入:");            gets(c);        }        {            if (strcmp(c, "1") == 0) {                strcpy(choice, "single\n");                openroom(choice);            }            if (strcmp(c, "2") == 0) {                strcpy(choice, "double\n");                openroom(choice);            }            if (strcmp(c, "3") == 0) {                strcpy(choice, "triple\n");                openroom(choice);            }            if (strcmp(c, "4") == 0) {                strcpy(choice, "four\n");                openroom(choice);            }            if (strcmp(c, "5") == 0) {                break;                system("pause");            }        }    } }void inquirevacant(char c[]){    int flag1 = 0, flag2 = 0, flag3 = 0, flag4 = 0;    Room* p = rhead;    while (p != NULL) {        if (p->flag == 0) {            if (strcmp(p->type, "single\n") == 0)                flag1++;            if (strcmp(p->type, "double\n") == 0)                flag2++;            if (strcmp(p->type, "triple\n") == 0)                flag3++;            if (strcmp(p->type, "four\n") == 0)                flag4++;        }        p = p->rnext;     }    if (strcmp(c, "single\n") == 0)    {        if (flag1 >= 1) {            printf("房间类型选择成功\n");            openroom(c);        }        else        {            printf("抱歉，该类房间没有空房，请重新选择");            system("pause");            system("cls");            chooseroomtype();         }    }    if (strcmp(c, "double\n") == 0)    {        if (flag2 >= 1) {            printf("房间类型选择成功\n");            openroom(c);        }        else        {            printf("抱歉，该类房间没有空房，请重新选择");            system("pause");            system("cls");            chooseroomtype();        }    }    if (strcmp(c, "triple\n") == 0)    {        if (flag3 >= 1) {            printf("房间类型选择成功\n");            openroom(c);        }        else        {            printf("抱歉，该类房间没有空房，请重新选择");            system("pause");            system("cls");            chooseroomtype();        }    }    if (strcmp(c, "four\n") == 0)    {        if (flag4 >= 1) {            printf("房间类型选择成功\n");            openroom(c);        }        else        {            printf("抱歉，该类房间没有空房，请重新选择");            system("pause");            system("cls");            chooseroomtype();        }    }}void openroom(char t[]) {    Room* p = rhead;    Order* op = ohead;    while (op->onext != NULL) {        op = op->onext;    }//找到指针末尾。    Order* oop = (Order*)malloc(sizeof(Order));    op->onext = oop;    oop->onext = NULL;    char id[40];    char phonenumber_[20];    while (p != NULL) {        if (p->flag == 0 && strcmp(p->type, t) == 0) {            p->flag = 1;            oop->room_ = p;            printf("请输入房主姓名：");            fflush(stdin);            rewind(stdin);            scanf("%s", p->u.name);            checkchar1(p->u.name);//加上\n方便以后判断            printf("请输入18位的身份证号码：");            fflush(stdin);            rewind(stdin);            scanf("%s", id);            while (strlen(id) != 18 || judgeid(id) != 0) {//判断身份证号是否符合规则。                printf("身份证号码格式有误，请重新输入:");                fflush(stdin);                rewind(stdin);                scanf("%s", id);            }            checkchar1(id);//加上\n方便以后判断            strcpy(p->u.idcard, id);            printf("请输入11位电话号：");            fflush(stdin);            rewind(stdin);            scanf("%s", phonenumber_);            while (strlen(phonenumber_) != 11 || judgephone(phonenumber_) != 0)            {//判断电话号号是否符合规则。                printf("电话号不符合要求，请重新输入:");                fflush(stdin);                rewind(stdin);                scanf("%s", phonenumber_);            }            checkchar1(phonenumber_);//加上\n方便以后判断            strcpy(p->u.phonenumber, phonenumber_);            printf("请输入入住时间：年月日时(24时）中间请用/隔开：");            fflush(stdin);            rewind(stdin);            while ((scanf("%d/%d/%d/%d", &oop->year[0], &oop->mon[0], &oop->day[0], &oop->hour[0])) != 4 || Check_date1(oop->year, oop->mon, oop->day, oop->hour) != 0) {//判断日期是否大于当前日期                printf("日期输入有误，");                printf("请重新输入入住时间：年月日时(24时）中间请用/隔开：");                fflush(stdin);                rewind(stdin);            }            printf("请输入离开时间：年月日时(24时）中间请用/隔开：");            fflush(stdin);            rewind(stdin);            while ((scanf("%d/%d/%d/%d", &oop->year[1], &oop->mon[1], &oop->day[1], &oop->hour[1])) != 4 || Check_date2(oop->year, oop->mon, oop->day, oop->hour) != 0) {//判断离开日期是否入住当前日期                printf("日期输入有误，");                printf("请重新输入离开时间：年月日时(24时）中间请用/隔开：");            }            printf("您的房间号码：%s", p->roomnumber);            printf("创建订单成功\n");            fflush(stdin);            rewind(stdin);            break;        }        p = p->rnext;    }    system("pause");}void showroomtype() {    system("cls");    printf("房间类型:\n");    printf("1.single\n");    printf("2.double\n");    printf("3.triple\n");    printf("4.four\n");}void saveorder() {    FILE* fp = NULL;    if ((fp = fopen("order.txt", "w")) == NULL)    {        printf("can't built the order file\n");        system("pause");    }    Order* p = ohead->onext;    while (p != NULL) {        fputs(p->room_->roomnumber, fp);//连换行符一起保存        fputs(p->room_->type, fp);//连换行符一起保存        fputs(p->room_->u.name, fp);//连换行符一起保存        fputs(p->room_->u.idcard, fp);//连换行符一起保存        fputs(p->room_->u.phonenumber, fp);//连换行符一起保存        fprintf(fp, "%d", p->year[0]);        fputc('/', fp);        fprintf(fp, "%d", p->mon[0]);        fputc('/', fp);        fprintf(fp, "%d", p->day[0]);        fputc('/', fp);        fprintf(fp, "%d", p->hour[0]);        fputc('\n', fp);        fprintf(fp, "%d", p->year[1]);        fputc('/', fp);        fprintf(fp, "%d", p->mon[1]);        fputc('/', fp);        fprintf(fp, "%d", p->day[1]);        fputc('/', fp);        fprintf(fp, "%d", p->hour[1]);        fputc('\n', fp);        if (p->onext != NULL)fputc('\n', fp);        p = p->onext;    }    fclose(fp); }Order* readorder() {    FILE* fp = NULL;    char ch;    Order* ohead = exploitorderhead();    Order* p = ohead;    Order* q = ohead;    Room* u;    if ((fp = fopen("order.txt", "r+")) == NULL)    {        printf("can't open the file\n");        system("pause");        return NULL;    }    ch = fgetc(fp);    if (!feof(fp)) {        rewind(fp);        while (!feof(fp))        {            p = (Order*)malloc(sizeof(Order));            u = (Room*)malloc(sizeof(Room));            p->room_ = u;            fgets(p->room_->roomnumber, 40, fp);//读进来的还有换行符            fgets(p->room_->type, 10, fp);//读进来的还有换行符            fgets(p->room_->u.name, 40, fp);//读进来的还有换行符            fgets(p->room_->u.idcard, 20, fp);//读进来的还有换行符            fgets(p->room_->u.phonenumber, 20, fp);//读进来的还有换行符            fscanf(fp, "%d/%d/%d/%d", &p->year[0], &p->mon[0], &p->day[0], &p->hour[0]);            ch = fgetc(fp);            fscanf(fp, "%d/%d/%d/%d", &p->year[1], &p->mon[1], &p->day[1], &p->hour[1]);            ch = fgetc(fp);            ch = fgetc(fp);            q->onext = p;            q = p;        }    }    q->onext = NULL;    fclose(fp);    return ohead;}int Check_date1(int year_[2], int month_[2], int date_[2], int hour_[2]) {    int flag = 0;    time_t timep;    struct tm* p;    time(&timep);    p = gmtime(&timep);        unsigned char Month_buf[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 };    if (month_[0] == 2)        (((year_[0] % 4 == 0) && (year_[0] % 100 != 0)) || (year_[0] % 400 == 0)) ? Month_buf[1] += 1 : Month_buf[1];     if (month_[0] > 12 || month_[0]<1 || date_[0]>Month_buf[month_[0] - 1] || date_[0] < 1 || hour_[0] < 0 || hour_[0]>23)    {        flag = 1;        return flag;    }    if (year_[0] < p->tm_year + 1900)flag = 1;    else if (year_[0] == p->tm_year + 1900) {        if (month_[0] < p->tm_mon + 1)flag = 1;        else if (month_[0] == p->tm_mon + 1) {            if (date_[0] < p->tm_mday)flag = 1;            else if (date_[0] == p->tm_mday) {                if (hour_[0] < 8 + p->tm_hour)flag = 1;                else if (hour_[0] == 8 + p->tm_hour)flag = 0;                else if (hour_[0] > 8 + p->tm_hour)flag = 0;            }            else if (date_[0] > p->tm_mday)flag = 0;        }        else if (month_[0] > p->tm_mon + 1)flag = 0;    }    else if (year_[0] > p->tm_year + 1900)flag = 0;     return flag;//返回0是输入日期大于当前日期，1是输入日期小于当前日期}int Check_date2(int year_[2], int month_[2], int date_[2], int hour_[2]){         unsigned char Month_buf[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 };    if (month_[1] == 2)        (((year_[1] % 4 == 0) && (year_[1] % 100 != 0)) || (year_[1] % 400 == 0)) ? Month_buf[1] += 1 : Month_buf[1];     if (month_[1] > 12 || month_[1]<1 || date_[1]>Month_buf[month_[1] - 1] || date_[1] < 1 || hour_[1] < 0 || hour_[1]>23)return 1;         if (year_[0] < year_[1])return 0;    else if (year_[0] == year_[1]) {        if (month_[0] < month_[1])return 0;        else if (month_[0] == month_[1]) {            if (date_[0] < date_[1])return  0;            else if (date_[0] == date_[1]) {                if (hour_[0] < hour_[1])return  0;                else if (hour_[0] == hour_[1]) return 1;                else if (hour_[0] > hour_[1])return 1;            }            else if (date_[0] > date_[1])return 1;        }        else if (month_[0] > month_[1])return 1;    }    else if (year_[0] > year_[1])return 1;      //返回0是离开日期大于入住日期，1是离开日期小于入住日期}int Check_date3(int year, int month, int date, int hour){    int flag = 0;    time_t timep;    struct tm* p;    time(&timep);    p = gmtime(&timep);    if (year < p->tm_year + 1900)flag = 0;    else if (year == p->tm_year + 1900) {        if (month < p->tm_mon + 1)flag = 0;        else if (month == p->tm_mon + 1) {            if (date < p->tm_mday)flag = 0;            else if (date == p->tm_mday) {                if (hour < 8 + p->tm_hour)flag = 0;                else if (hour == 8 + p->tm_hour)flag = 0;                else if (hour > 8 + p->tm_hour)flag++;            }            else if (date > p->tm_mday)flag++;        }        else if (month > p->tm_mon + 1)flag++;    }    else if (year > p->tm_year + 1900)flag++;     return flag;//返回1是离开日期大于现在日期，0是离开日期小于现在日期}int Check_date4(int year_, int month_, int date_, int hour_) {    int flag = 0;    time_t timep;    struct tm* p;    time(&timep);    p = gmtime(&timep);     unsigned char Month_buf[12] = { 31,28,31,30,31,30,31,31,30,31,30,31 };    if (month_ == 2)        (((year_ % 4 == 0) && (year_ % 100 != 0)) || (year_ % 400 == 0)) ? Month_buf[1] += 1 : Month_buf[1];     if (month_ > 12 || month_<1 || date_>Month_buf[month_ - 1] || date_ < 1 || hour_ < 0 || hour_>23)    {        flag++;        return flag;    }    if (year_ < p->tm_year + 1900)flag++;    else if (year_ == p->tm_year + 1900) {        if (month_ < p->tm_mon + 1)flag++;        else if (month_ == p->tm_mon + 1) {            if (date_ < p->tm_mday)flag++;            else if (date_ == p->tm_mday) {                if (hour_ < 8 + p->tm_hour)flag++;                else if (hour_ == 8 + p->tm_hour)flag = 0;                else if (hour_ > 8 + p->tm_hour)flag = 0;            }            else if (date_ > p->tm_mday)flag = 0;        }        else if (month_ > p->tm_mon + 1)flag = 0;    }    else if (year_ > p->tm_year + 1900)flag = 0;    return flag;//返回0是输入日期大于当前日期，1是输入日期小于当前日期}void deletedisabledorder() {    Order* p;    Order* q;    p = ohead;    int m = 0;    q = p->onext;    while (q != NULL) {        if (Check_date3(q->year[1], q->mon[1], q->day[1], q->hour[1]) != 1)//判断订单是否失效        {            emptyroom(q->room_->roomnumber);//把房间状态清除            p->onext = q->onext;            free(q);            q = p->onext;            m++;        }        else {            p = p->onext;            q = q->onext;        }    }    if (m != 0)printf("失效订单已删除\n");    else        printf("当前无失效订单\n");}void checkchar(char t[]) {    int i;    for (i = 0;; i++) {        if (t[i] == '\n') {            t[i] = '\0';            break;        }    } }void checkchar1(char t[]) {    int i;    for (i = 0;; i++) {        if (t[i] == '\0') {            t[i] = '\n';            t[i + 1] = '\0';//添加换行符            break;        }    }}void changeorder()//修改订单{    system("cls");    char phonenumber_[20];    char id[40];    Order* p;    char num[20];    int m = 0, m1 = 0;    if (ohead->onext == NULL)    {        printf("订单为空修改失败\n");        system("pause");    }    else    {        p = ohead->onext;        char nam[20];        printf("输入修改订单的客户的姓名：");        fflush(stdin);        rewind(stdin);        gets(nam);        checkchar1(nam);        while (strcmp(p->room_->u.name, nam) != 0 && p->onext != NULL)            p = p->onext;        if (strcmp(p->room_->u.name, nam) == 0)        {            m++;            if (Check_date1(p->year, p->mon, p->day, p->hour) != 0) {                printf("已到入住日期无法修改");                system("pause");            }            else while (1)            {                system("cls");                printf("1.修改姓名\n");                printf("2.修改电话\n");                printf("3.修改身份证号\n");                printf("4.修改入住时期\n");                printf("5.修改离开时期\n");                printf("6.退出修改\n");                printf("输入要修改的选项:\n");                fflush(stdin);                rewind(stdin);                gets(num);                while ((strcmp(num, "1") != 0) && (strcmp(num, "2") != 0) && (strcmp(num, "3") != 0) && (strcmp(num, "4") != 0) && (strcmp(num, "5") != 0) && (strcmp(num, "6") != 0)) {                    printf("选择有误，请重新输入:");                    fflush(stdin);                    rewind(stdin);                    gets(num);                }                if (strcmp(num, "1") == 0)                {                    printf("输入新的姓名：");                    checkchar(p->room_->u.name);                    gets(nam);                    while (strcmp(p->room_->u.name, nam) == 0) {                        printf("姓名未更改，请重新输入:");                        scanf("%s", nam);                    }                    checkchar1(nam);//加上换行符才能比较                    strcpy(p->room_->u.name, nam);                    printf("修改成功\n");                }                if (strcmp(num, "2") == 0)                {                    printf("输入新的电话：");                    checkchar(p->room_->u.phonenumber);                    scanf("%s", phonenumber_);                    while (strlen(phonenumber_) != 11 || judgephone(phonenumber_) != 0 || strcmp(p->room_->u.phonenumber, phonenumber_) == 0) {                        printf("电话号不符合要求，请重新输入:");                        scanf("%s", phonenumber_);                    }                    checkchar1(phonenumber_);//加上换行符才能比较                    strcpy(p->room_->u.phonenumber, phonenumber_);                    printf("修改成功\n");                }                if (strcmp(num, "3") == 0)                {                    printf("输入新的身份证号：");                    checkchar(p->room_->u.idcard);                    fflush(stdin);                    rewind(stdin);                    scanf("%s", id);                    while (strlen(id) != 18 || judgeid(id) != 0 || strcmp(p->room_->u.idcard, id) == 0) {                        printf("身份证号码格式有误，请重新输入:");                        fflush(stdin);                        rewind(stdin);                        scanf("%s", id);                    }                    checkchar1(id);//加上换行符才能比较                    strcpy(p->room_->u.idcard, id);                    printf("修改成功\n");                }                if (strcmp(num, "4") == 0)                {                    if (Check_date1(p->year, p->mon, p->day, p->hour) == 0) {                        printf("请输入入住时间：年月日时(24时）中间请用/隔开：");                        fflush(stdin);                        rewind(stdin);                        while ((scanf("%d/%d/%d/%d", &p->year[0], &p->mon[0], &p->day[0], &p->hour[0]) != 4) || Check_date1(p->year, p->mon, p->day, p->hour) != 0 || Check_date2(p->year, p->mon, p->day, p->hour) != 0) {                            if (Check_date2(p->year, p->mon, p->day, p->hour) != 0) {                                printf("请修改离开时间：年月日时(24时）中间请用/隔开：");                                fflush(stdin);                                rewind(stdin);                                while ((scanf("%d/%d/%d/%d", &p->year[1], &p->mon[1], &p->day[1], &p->hour[1]) != 4) || Check_date2(p->year, p->mon, p->day, p->hour) != 0) {                                    printf("日期输入有误，");                                    printf("请重新输入离开时间：年月日时(24时）中间请用/隔开：");                                    fflush(stdin);                                    rewind(stdin);                                }break;                            }                            else {                                printf("日期输入有误\n");                                printf("请重新输入入住时间：年月日时(24时）中间请用/隔开：");                                                        fflush(stdin);                            rewind(stdin);}                        }                         printf("修改成功\n");                    }                }                if (strcmp(num, "5") == 0) {                    printf("请输入离开时间：年月日时(24时）中间请用/隔开：");                    fflush(stdin);                    rewind(stdin);                    while ((scanf("%d/%d/%d/%d", &p->year[1], &p->mon[1], &p->day[1], &p->hour[1]) != 4) || Check_date2(p->year, p->mon, p->day, p->hour) != 0) {                        printf("日期输入有误，");                        printf("请重新输入离开时间：年月日时(24时）中间请用/隔开：");                        fflush(stdin);                        rewind(stdin);                    }                    printf("修改成功\n");                }                if (strcmp(num, "6") == 0)break;                system("pause");            }         }        if (m == 0)printf("该客人不在订单中\n");        printf("\n");        system("pause");    }}void deleteorder() {    char nam[20];    system("cls");    if (ohead->onext == NULL)    {        printf("没有可删除的订单\n");        system("pause");    }    else {        printf("请输入你要删除的订单的姓名：");        fflush(stdin);        rewind(stdin);        gets(nam);        checkchar1(nam);//加上换行符才能比较        Order* p;        Order* q;        p = ohead;        q = p->onext;        while (q != NULL) {            if (strcmp(q->room_->u.name, nam) == 0)            {                emptyroom(q->room_->roomnumber);                p->onext = q->onext;                free(q);                q = p->onext;                printf("已删除该订单\n");                system("pause");            }            else {                p = p->onext;                q = q->onext;            }         }    } }void changeKEY() {    char s[15], c[15], n[15];    int i, a = 0, b = 0, e = 0;    system("cls");     FILE* fp = fopen("password.txt", "r+");    if (fp == NULL) {        printf("Failed to open file");     }    fgets(s, 14, fp);//取出密码    rewind(fp);//指针回到文件开头    fclose(fp);    fp = fopen("password.txt", "w");    printf("请输入原密码:\n");    fflush(stdin);    rewind(stdin);    gets(c);    while (strcmp(c, s) != 0) {        printf("原密码输入错误\n请重新输入");        fflush(stdin);        rewind(stdin);        gets(c);    }    if (strcmp(c, s) == 0) {        printf("请输入新密码（6~14位）:\n");        fflush(stdin);        rewind(stdin);        gets(n);    }        i = strlen(n);     for (int f = 0; f < i; f++)    {        if (('a' <= n[f] && n[f] <= 'z') || ('A' <= n[f] && n[f] <= 'Z'))            a++;        else if ('0' <= n[f] && n[f] <= '9')            b++;         else            e++;    }//判断字母数字和其他字符的个数     while (i < 6 || i >= 15 || a == 0 || b == 0 || e == 0|| strcmp(n, s) == 0) {         if (strcmp(n, s) == 0)printf("\n与原密码相同\n请重新输入：");        else printf("\n安全性不高或位数不符合要求\n请重新输入：\n");        fflush(stdin);        rewind(stdin);        gets(n);        i = strlen(n);        a = 0; b = 0; e = 0;        for (int f = 0; f < i; f++)        {            if (('a' <= n[f] && n[f] <= 'z') || ('A' <= n[f] && n[f] <= 'Z'))                a++;            else if ('0' <= n[f] && n[f] <= '9')                b++;             else                e++;        }    }//判断字母数字和其他字符的个数}         fputs(n, fp);    fclose(fp);    printf("\n密码修改成功\n");    system("pause");}void color1() {    char e[15];    FILE* fp = fopen("color.txt", "r");    if (fp == NULL) {        printf("Failed to open file");     }    e[0] = fgetc(fp);    fclose(fp);    switch (*e) {     case'1':system("color 10"); break;    case'2':system("color 20"); break;    case'3':system("color 30"); break;    case'4':system("color 40"); break;    case'5':system("color 50"); break;    case'6':system("color 60"); break;    case'7':system("color 70"); break;    case'8':system("color 80"); break;    case'9':system("color 90"); break;    case'A':system("color A0"); break;    case'B':system("color B0"); break;    case'C':system("color C0"); break;    case'D':system("color D0"); break;    case'E':system("color E0"); break;    case'F':system("color F0"); break;     }}void changecolor1() {    int a;    system("cls");    FILE* p = fopen("color.txt", "w");    if (p == NULL) {        printf("Failed to open file");     }     printf("颜色列表：1=蓝色 2=绿色 3=湖蓝色 4=红色\n5=紫色 6=黄色 7=白色 8=灰色\n9=淡蓝色 10=淡绿色 11=淡浅绿色 12=淡红色\n13=淡紫色 14=淡黄色 15=亮白色\n");    printf("请选择相应数字改变系统颜色");     scanf("%d", &a);    while (a < 1 || a>15) { printf("您的输入有误，请重新输入\n");  scanf("%d", &a); }    switch (a) {     case 1:system("color 10"); fputs("1", p); break;    case 2:system("color 20"); fputs("2", p); break;    case 3:system("color 30"); fputs("3", p); break;    case 4:system("color 40"); fputs("4", p); break;    case 5:system("color 50"); fputs("5", p); break;    case 6:system("color 60"); fputs("6", p); break;    case 7:system("color 70"); fputs("7", p); break;    case 8:system("color 80"); fputs("8", p); break;    case 9:system("color 90"); fputs("9", p); break;    case 10:system("color A0"); fputs("A", p); break;    case 11:system("color B0"); fputs("B", p); break;    case 12:system("color C0"); fputs("C", p); break;    case 13:system("color D0"); fputs("D", p); break;    case 14:system("color E0"); fputs("E", p); break;    case 15:system("color F0"); fputs("F", p); break;     }fclose(p); printf("\n颜色修改成功\n");    system("pause"); }void search3(){    system("cls");    Order* p;    int m;    if (ohead->onext == NULL)    {        printf("无订单，查找失败\n");        system("pause");    }    else    {        while (1) {            system("cls");            printf("选择查找方式：(1~4)\n");            printf("1.按姓名查找\n");            printf("2.按电话查找\n");            printf("3.按身份证号查找\n");            printf("4.按房间号查找\n");            printf("5.返回上一层\n");            char t[20];            fflush(stdin);            rewind(stdin);            gets(t);            while ((strcmp(t, "1") != 0) && (strcmp(t, "2") != 0) && (strcmp(t, "3") != 0) && (strcmp(t, "4") != 0) && (strcmp(t, "5") != 0)) {                printf("选择有误，请重新输入:");                fflush(stdin);                rewind(stdin);                gets(t);            }            if (strcmp(t, "1") == 0)            {                m = 0;                p = ohead->onext;                printf("输入查找的姓名：");                char nam[40];                fflush(stdin);                rewind(stdin);                gets(nam);                while (p != NULL)                {                    checkchar(p->room_->u.name);                    if (FindSubstring(p->room_->u.name, nam) == 0)                    {                        m++;                        checkchar1(p->room_->u.name);                        printf("\n姓名：%s\n", p->room_->u.name);                        printf("\n电话：%s\n", p->room_->u.phonenumber);                        printf("身份证号：%s\n", p->room_->u.idcard);                        printf("房间号: %s\n", p->room_->roomnumber);                        printf("入住日期：%d/%d/%d/%d\n", p->year[0], p->mon[0], p->day[0], p->hour[0]);                        printf("离开日期：%d/%d/%d/%d\n", p->year[1], p->mon[1], p->day[1], p->hour[1]);                     }                    p = p->onext;                }                 if (m == 0)                    printf("查找用户不存在\n");                system("pause");             }            if (strcmp(t, "2") == 0)            {                m = 0;                p = ohead->onext;                char ph[20];                printf("输入查找的电话：");                fflush(stdin);                rewind(stdin);                gets(ph);                while (strlen(ph) != 11 || judgephone(ph) != 0)                {//判断电话号号是否符合规则。                    printf("电话号不符合要求，请重新输入:");                    fflush(stdin);                    rewind(stdin);                    scanf("%s", ph);                }                checkchar1(ph);                while (p != NULL && strcmp(ph, p->room_->u.phonenumber) == 0) {                    //找到电话一致的客人                    if (strcmp(ph, p->room_->u.phonenumber) == 0)                    {                        m++;                        printf("\n姓名：%s\n", p->room_->u.name);                        printf("\n电话：%s\n", p->room_->u.phonenumber);                        printf("身份证号：%s\n", p->room_->u.idcard);                        printf("房间号: %s\n", p->room_->roomnumber);                        printf("入住日期：%d/%d/%d/%d\n", p->year[0], p->mon[0], p->day[0], p->hour[0]);                        printf("离开日期：%d/%d/%d/%d\n", p->year[1], p->mon[1], p->day[1], p->hour[1]);                     }                    p = p->onext;                }                if (m == 0)                    printf("查找号码不存在\n");                system("pause");             }            if (strcmp(t, "3") == 0)            {                char id[18];                printf("输入要查找的身份证号：");                fflush(stdin);                rewind(stdin);                gets(id);                while (strlen(id) != 18 || judgeid(id) != 0) {//判断身份证号是否符合规则。                    printf("身份证号码格式有误，请重新输入:");                    fflush(stdin);                    rewind(stdin);                    scanf("%s", id);                }                checkchar1(id);                m = 0;                p = ohead->onext;                while (p != NULL && strcmp(p->room_->u.idcard, id) == 0) {                    if (strcmp(p->room_->u.idcard, id) == 0)                    {                        m++;                        printf("\n姓名：%s\n", p->room_->u.name);                        printf("\n电话：%s\n", p->room_->u.phonenumber);                        printf("身份证号：%s\n", p->room_->u.idcard);                        printf("房间号: %s\n", p->room_->roomnumber);                        printf("入住日期：%d/%d/%d/%d\n", p->year[0], p->mon[0], p->day[0], p->hour[0]);                        printf("离开日期：%d/%d/%d/%d\n", p->year[1], p->mon[1], p->day[1], p->hour[1]);                    }                    p = p->onext;                }                if (m == 0)                    printf("查找号码不存在\n");                system("pause");            }            if (strcmp(t, "4") == 0)            {                char roomnum[20];                printf("输入要查找的房间号（本酒店房间号101~112；201~208；301~304；401~403）：");                fflush(stdin);                rewind(stdin);                gets(roomnum);                checkchar1(roomnum);                m = 0;                p = ohead->onext;                while (p != NULL) {                     if (strcmp(p->room_->roomnumber, roomnum) == 0)                    {                        m++;                        printf("\n姓名：%s\n", p->room_->u.name);                        printf("\n电话：%s\n", p->room_->u.phonenumber);                        printf("身份证号：%s\n", p->room_->u.idcard);                        printf("房间号: %s\n", p->room_->roomnumber);                        printf("入住日期：%d/%d/%d/%d\n", p->year[0], p->mon[0], p->day[0], p->hour[0]);                        printf("离开日期：%d/%d/%d/%d\n", p->year[1], p->mon[1], p->day[1], p->hour[1]);                     }                    p = p->onext;                 }                if (m == 0)                    printf("房间未被使用或未输入正确房间号\n");                system("pause");            }            if (strcmp(t, "5") == 0)break;            printf("\n");        }    }}void search2(){    int flag1 = 0, flag2 = 0;    system("cls");    int count1 = 0, count2 = 0, count3 = 0, count4 = 0, m;    char c[10];    Room* p;    if (rhead->rnext == NULL)    {        printf("无房间，查找失败\n");        system("pause");    }    else    {        while (1) {            system("cls");            printf("请输入查询方式:\n");            printf("1.房间状态查询\n");                     printf("2.房间状态和房间类型组合查询\n");            printf("3.返回上一层\n");            char t[20];            fflush(stdin);            rewind(stdin);            gets(t);            while ((strcmp(t, "1") != 0) && (strcmp(t, "2") != 0) && (strcmp(t, "3") != 0)) {                printf("选择有误，请重新输入:");                fflush(stdin);                rewind(stdin);                gets(t);            }            if (strcmp(t, "1") == 0) {                system("cls");                printf("闲置房:");                printf("\n");                for (p = rhead->rnext; p->rnext != NULL; p = p->rnext)if (p->flag == 0) {                    printf("%s", p->roomnumber); flag1++;                }                printf("\n");                if (flag1 == 0)printf("无");                printf("被占用房");                printf("\n");                for (p = rhead->rnext; p->rnext != NULL; p = p->rnext)if (p->flag != 0) {                    printf("%s", p->roomnumber); flag2++;                }                if (flag2 == 0)printf("无");                printf("\n");            }                                     if (strcmp(t, "2") == 0) {                while (1) {                    system("cls");                    char n[20];                    printf("请选择查询类型：\n1.单人间\n2.双人间\n3.三人间\n4.四人间\n5.返回上一层\n");                    fflush(stdin);                    rewind(stdin);                    gets(n);                     while (strcmp(n, "1") != 0 && strcmp(n, "2") != 0 && strcmp(n, "3") != 0 && strcmp(n, "4") != 0 && strcmp(n, "5") != 0) {                        printf("选择有误，请重新选择：");                        fflush(stdin);                        rewind(stdin);                        gets(n);                    }                    if (strcmp(n, "1") == 0) {                        printf("空房有：\n");                        for (p = rhead->rnext; p != NULL; p = p->rnext)                            if (p->flag == 0 && strcmp(p->type, "single\n") == 0)                            {                                count1++; printf("%s", p->roomnumber);                            }                        printf("\n");                        printf("单人间还剩%d间", count1);                    }                    if (strcmp(n, "2") == 0) {                        printf("空房有：\n");                        for (p = rhead->rnext; p != NULL; p = p->rnext)if (p->flag == 0 && strcmp(p->type, "double\n") == 0)                        {                            count2++; printf("%s", p->roomnumber);                        }                        printf("\n");                        printf("双人间还剩%d间", count2);                    }                    if (strcmp(n, "3") == 0) {                        printf("空房有：\n");                        for (p = rhead->rnext; p != NULL; p = p->rnext)if (p->flag == 0 && strcmp(p->type, "triple\n") == 0)                        {                            count3++; printf("%s", p->roomnumber);                        }                        printf("三人间还剩%d间", count3);                    }                    if (strcmp(n, "4") == 0) {                        printf("空房有：\n");                        for (p = rhead->rnext; p != NULL; p = p->rnext)if (p->flag == 0 && strcmp(p->type, "four\n") == 0)                        {                            count4++; printf("%s", p->roomnumber);                        }                        printf("\n");                        printf("四人间还剩%d间", count4);                    }                    if (strcmp(n, "5") == 0)break;                    printf("\n");                    system("pause");                }            }            if (strcmp(t, "3") == 0)break;            printf("\n");            system("pause");        }     }}void statistics() {    system("cls");     Order* e; int m, year, mon, day, hour;    if (ohead->onext == NULL)    {        printf("无订单\n");        system("pause");    }    else {        printf("请输入截止日期 年月日时(24时）中间请用/隔开：\n");        fflush(stdin);        rewind(stdin);         while ((scanf("%d/%d/%d/%d", &year, &mon, &day, &hour)) != 4 || Check_date4(year, mon, day, hour) == 1)        {            printf("请输入有效时间");            fflush(stdin);            rewind(stdin);        }        printf("在该日期前生效的订单有\n");        for (e = ohead->onext; e != NULL; e = e->onext)if (time_1(year, mon, day, hour, e) == -1 || time_1(year, mon, day, hour, e) == 0) {            printf("\n姓名：%s", e->room_->u.name);            printf("电话：%s", e->room_->u.phonenumber);            printf("身份证号：%s", e->room_->u.idcard);            printf("房间号: %s", e->room_->roomnumber);            printf("入住日期：%d/%d/%d/%d\n", e->year[0], e->mon[0], e->day[0], e->hour[0]);            printf("离开日期：%d/%d/%d/%d\n", e->year[1],e->mon[1], e->day[1], e->hour[1]);            printf("\n");        }    }    system("pause");}int time_1(int year, int mon, int day, int hour, Order* p){     if ((p->year[0]) > year)return 1;    if ((p->year[0]) < year)return -1;    if ((p->year[0]) == year) {        if ((p->mon[0]) > mon)return 1;        if ((p->mon[0]) < mon)return -1;        if ((p->mon[0]) == mon) {            if ((p->day[0]) < day)return -1;            if ((p->day[0]) > day)return  1;            if ((p->day[0]) == day) {                if ((p->hour[0]) < hour)return -1;                if ((p->hour[0]) > hour)return 1;                if ((p->hour[0]) == hour)return 0;            }        }    }}void read_() {         extern Room* rhead;    extern Order* ohead;    FILE* fp = NULL;    FILE* fp1 = NULL;    char ch;    rhead = (Room*)malloc(sizeof(Room));    if (rhead != NULL)    {        rhead->rnext = NULL;    }    ohead = exploitorderhead();    Room* p = rhead;    Room* q = rhead;    Order* p1 = ohead;    Order* q1 = ohead;    Room* u;    if ((fp = fopen("room.txt", "r+")) == NULL || (fp1 = fopen("order.txt", "r+")) == NULL)    {                 fp = fopen("room1.txt", "r+");        fp1 = fopen("order1.txt", "r+");    }    else {        fp = fopen("room.txt", "r+");        fp1 = fopen("order.txt", "r+");             }    while (!feof(fp))    {        p = (Room*)malloc(sizeof(Room));        fgets(p->roomnumber, 20, fp);//读进来的还有换行符        //printf("%s\n",p->roomnumber);        fgets(p->type, 20, fp);//读进来的还有换行符        //printf("%s\n",p->type);        fscanf(fp, "%d", &(p->flag));        //printf("%d\n",p->flag);        ch = fgetc(fp);        ch = fgetc(fp);        q->rnext = p;        q = p;    }    q->rnext = NULL;    fclose(fp);    ch = fgetc(fp1);    if (!feof(fp1)) {        rewind(fp1);        while (!feof(fp1))        {            p1 = (Order*)malloc(sizeof(Order));            u = (Room*)malloc(sizeof(Room));            p1->room_ = u;            fgets(p1->room_->roomnumber, 40, fp1);//读进来的还有换行符            fgets(p1->room_->type, 10, fp1);//读进来的还有换行符            fgets(p1->room_->u.name, 40, fp1);//读进来的还有换行符            fgets(p1->room_->u.idcard, 20, fp1);//读进来的还有换行符            fgets(p1->room_->u.phonenumber, 20, fp1);//读进来的还有换行符            fscanf(fp1, "%d/%d/%d/%d", &p1->year[0], &p1->mon[0], &p1->day[0], &p1->hour[0]);            ch = fgetc(fp1);            fscanf(fp1, "%d/%d/%d/%d", &p1->year[1], &p1->mon[1], &p1->day[1], &p1->hour[1]);            ch = fgetc(fp1);            ch = fgetc(fp1);            q1->onext = p1;            q1 = p1;        }    }    q1->onext = NULL;    fclose(fp1);    deletedisabledorder();     }void backups() {    system("cls");    FILE* fp = NULL;    FILE* fp1 = NULL;    if ((fp = fopen("order1.txt", "w")) == NULL)    {        printf("can't built the order1 file\n");        system("pause");    }    if ((fp1 = fopen("room1.txt", "w")) == NULL)    {        printf("can't open the room1 file\n");        system("pause");    }    Room* p1 = rhead->rnext;    Order* p = ohead->onext;    while (p != NULL) {        fputs(p->room_->roomnumber, fp);//连换行符一起保存        fputs(p->room_->type, fp);//连换行符一起保存        fputs(p->room_->u.name, fp);//连换行符一起保存        fputs(p->room_->u.idcard, fp);//连换行符一起保存        fputs(p->room_->u.phonenumber, fp);//连换行符一起保存        fprintf(fp, "%d", p->year[0]);        fputc('/', fp);        fprintf(fp, "%d", p->mon[0]);        fputc('/', fp);        fprintf(fp, "%d", p->day[0]);        fputc('/', fp);        fprintf(fp, "%d", p->hour[0]);        fputc('\n', fp);        fprintf(fp, "%d", p->year[1]);        fputc('/', fp);        fprintf(fp, "%d", p->mon[1]);        fputc('/', fp);        fprintf(fp, "%d", p->day[1]);        fputc('/', fp);        fprintf(fp, "%d", p->hour[1]);        fputc('\n', fp);        if (p->onext != NULL)fputc('\n', fp);        p = p->onext;    }    while (p1 != NULL) {        fputs(p1->roomnumber, fp1);        fputs(p1->type, fp1);        fprintf(fp1, "%d", p1->flag);        fputc('\n', fp1);        if (p1->rnext != NULL)fputc('\n', fp1);        p1 = p1->rnext;    }    if (fclose(fp1) == 0 && fclose(fp) == 0)printf("备份成功\n");    else        printf("备份失败\n");    system("pause");}int FindSubstring(const char* strSource, const char* strSub){    unsigned int uLen = strlen(strSource);    if (uLen == 0)    {        return -1;    }    char* str1 = (char*)malloc(uLen + 1);    memset(str1, '\0', uLen + 1);    strcpy(str1, strSource);    uLen = strlen(strSub);    if (uLen == 0)    {        free(str1);        return -1;    }    char* str2 = (char*)malloc(uLen + 1);    memset(str2, '\0', uLen + 1);    strcpy(str2, strSub);    unsigned int i = 0, j = 0;    for (i = 0; i < strlen(strSource); i = i + 2)    {        if (str1[i] == str2[j] && str1[i + 1] == str2[j + 1])        {            j++;            j++;        }        else        {            if (j == uLen)            {                break;            }            else            {                j = 0;            }        }    }    free(str1);    free(str2);    if (j == uLen)    {        return 0;    }    else    {        return -1;    }}

main.c

#include <stdio.h>#include "function.h"#include "struct.h"Room* rhead;Order* ohead;int main(){    registers();}

此外，程序的正确运行还需项目文件夹下包括下图所示的文本文件

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