c语言课程设计自行车存放管理系统代码

以下是一个简单的自行车存放管理系统的代码示例，包括用户登录、车辆入库、车辆出库、查询、统计、排序、报表输出等功能。请注意，这只是一个简单的示例，您可以根据实际需求进行修改和完善。

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>

#define MAX_SIZE 100 // 最大存储的车辆数
#define FILE_NAME "data.txt" // 存储车辆信息的文件名

// 定义车辆信息结构体
typedef struct {
    char plate[10]; // 车牌号
    char model[20]; // 车型
    char color[10]; // 颜色
    char time[20]; // 入库时间
} BikeInfo;

// 全局变量
BikeInfo bikes[MAX_SIZE]; // 存储车辆信息的数组
int bikeCount = 0; // 当前存储的车辆数

// 函数声明
void initBikes(); // 初始化车辆信息
void saveBikes(); // 保存车辆信息到文件中
void loadBikes(); // 从文件中读取车辆信息
void login(); // 用户登录
void addBike(); // 录入车辆信息
void deleteBike(); // 删除车辆信息
void queryBike(); // 查询车辆信息
void statBike(); // 统计车辆信息
void sortBike(); // 排序车辆信息
void printBikes(); // 打印车辆信息
void printMenu(); // 打印菜单

int main() {
    initBikes(); // 初始化车辆信息
    loadBikes(); // 从文件中读取车辆信息

    login(); // 用户登录

    return 0;
}

// 初始化车辆信息
void initBikes() {
    int i;
    for (i = 0; i < MAX_SIZE; i++) {
        strcpy(bikes[i].plate, "");
        strcpy(bikes[i].model, "");
        strcpy(bikes[i].color, "");
        strcpy(bikes[i].time, "");
    }
}

// 保存车辆信息到文件中
void saveBikes() {
    FILE *fp = fopen(FILE_NAME, "w");
    if (fp == NULL) {
        printf("无法打开文件 %s\n", FILE_NAME);
        return;
    }

    int i;
    for (i = 0; i < bikeCount; i++) {
        fprintf(fp, "%s %s %s %s\n", bikes[i].plate, bikes[i].model, bikes[i].color, bikes[i].time);
    }

    fclose(fp);
}

// 从文件中读取车辆信息
void loadBikes() {
    FILE *fp = fopen(FILE_NAME, "r");
    if (fp == NULL) {
        printf("无法打开文件 %s\n", FILE_NAME);
        return;
    }

    while (fscanf(fp, "%s %s %s %s", bikes[bikeCount].plate, bikes[bikeCount].model, bikes[bikeCount].color, bikes[bikeCount].time) != EOF) {
        bikeCount++;
    }

    fclose(fp);
}

// 用户登录
void login() {
    char username[20];
    char password[20];

    printf("请输入用户名：");
    scanf("%s", username);
    printf("请输入密码：");
    scanf("%s", password);

    if (strcmp(username, "admin") == 0 && strcmp(password, "123456") == 0) {
        printMenu();
    } else {
        printf("用户名或密码错误！\n");
    }
}

// 录入车辆信息
void addBike() {
    if (bikeCount >= MAX_SIZE) {
        printf("车辆信息已满，无法继续录入！\n");
        return;
    }

    BikeInfo bike;

    printf("请输入车牌号：");
    scanf("%s", bike.plate);

    int i;
    for (i = 0; i < bikeCount; i++) {
        if (strcmp(bikes[i].plate, bike.plate) == 0) {
            printf("该车牌号已存在，请重新输入！\n");
            return;
        }
    }

    printf("请输入车型：");
    scanf("%s", bike.model);
    printf("请输入颜色：");
    scanf("%s", bike.color);

    time_t now;
    time(&now);
    strftime(bike.time, sizeof(bike.time), "%Y-%m-%d %H:%M:%S", localtime(&now));

    bikes[bikeCount] = bike;
    bikeCount++;

    saveBikes();

    printf("车辆信息录入成功！\n");
}

// 删除车辆信息
void deleteBike() {
    char plate[10];

    printf("请输入要删除的车牌号：");
    scanf("%s", plate);

    int i;
    for (i = 0; i < bikeCount; i++) {
        if (strcmp(bikes[i].plate, plate) == 0) {
            int j;
            for (j = i; j < bikeCount - 1; j++) {
                bikes[j] = bikes[j + 1];
            }
            bikeCount--;

            saveBikes();

            printf("车辆信息删除成功！\n");
            return;
        }
    }

    printf("未找到该车牌号对应的车辆信息！\n");
}

// 查询车辆信息
void queryBike() {
    char keyword[20];

    printf("请输入要查询的关键字：");
    scanf("%s", keyword);

    int i, j;
    for (i = 0; i < bikeCount; i++) {
        if (strstr(bikes[i].plate, keyword) != NULL || strstr(bikes[i].model, keyword) != NULL || strstr(bikes[i].color, keyword) != NULL) {
            printf("车牌号：%s\t车型：%s\t颜色：%s\t入库时间：%s\n", bikes[i].plate, bikes[i].model, bikes[i].color, bikes[i].time);
        }
    }
}

// 统计车辆信息
void statBike() {
    int choice;

    printf("请选择统计方式：\n");
    printf("1、车型\n");
    printf("2、颜色\n");
    printf("3、入库时间\n");
    printf("请选择：");
    scanf("%d", &choice);

    if (choice == 1) {
        int count[10] = {0}; // 每种车型的数量
        int i, j;
        for (i = 0; i < bikeCount; i++) {
            for (j = 0; j < 10; j++) {
                if (strcmp(bikes[i].model, "model1") == 0) {
                    count[0]++;
                } else if (strcmp(bikes[i].model, "model2") == 0) {
                    count[1]++;
                } else if (strcmp(bikes[i].model, "model3") == 0) {
                    count[2]++;
                } else if (strcmp(bikes[i].model, "model4") == 0) {
                    count[3]++;
                } else if (strcmp(bikes[i].model, "model5") == 0) {
                    count[4]++;
                } else if (strcmp(bikes[i].model, "model6") == 0) {
                    count[5]++;
                } else if (strcmp(bikes[i].model, "model7") == 0) {
                    count[6]++;
                } else if (strcmp(bikes[i].model, "model8") == 0) {
                    count[7]++;
                } else if (strcmp(bikes[i].model, "model9") == 0) {
                    count[8]++;
                } else if (strcmp(bikes[i].model, "model10") == 0) {
                    count[9]++;
                }
            }
        }

        printf("车型\t数量\n");
        printf("model1\t%d\n", count[0]);
        printf("model2\t%d\n", count[1]);
        printf("model3\t%d\n", count[2]);
        printf("model4\t%d\n", count[3]);
        printf("model5\t%d\n", count[4]);
        printf("model6\t%d\n", count[5]);
        printf("model7\t%d\n", count[6]);
        printf("model8\t%d\n", count[7]);
        printf("model9\t%d\n", count[8]);
        printf("model10\t%d\n", count[9]);
    } else if (choice == 2) {
        int count[5] = {0}; // 每种颜色的数量
        int i, j;
        for (i = 0; i < bikeCount; i++) {
            for (j = 0; j < 5; j++) {
                if (strcmp(bikes[i].color, "red") == 0) {
                    count[0]++;
                } else if (strcmp(bikes[i].color, "blue") == 0) {
                    count[1]++;
                } else if (strcmp(bikes[i].color, "green") == 0) {
                    count[2]++;
                } else if (strcmp(bikes[i].color, "yellow") == 0) {
                    count[3]++;
                } else if (strcmp(bikes[i].color, "black") == 0) {
                    count[4]++;
                }
            }
        }

        printf("颜色\t数量\n");
        printf("red\t%d\n", count[0]);
        printf("blue\t%d\n", count[1]);
        printf("green\t%d\n", count[2]);
        printf("yellow\t%d\n", count[3]);
        printf("black\t%d\n", count[4]);
    } else if (choice == 3) {
        char start[20];
        char end[20];

        printf("请输入起始时间（格式：YYYY-MM-DD hh:mm:ss）：");
        scanf("%s", start);
        printf("请输入结束时间（格式：YYYY-MM-DD hh:mm:ss）：");
        scanf("%s", end);

        int count = 0;
        int i;
        for (i = 0; i < bikeCount; i++) {
            if (strcmp(bikes[i].time, start) >= 0 && strcmp(bikes[i].time, end) <= 0) {
                count++;
            }
        }

        printf("在 %s 到 %s 之间入库的车辆数量为：%d\n", start, end, count);
    } else {
        printf("无效的选择！\n");
    }
}

// 排序车辆信息
void sortBike() {
    int choice;

    printf("请选择排序方式：\n");
    printf("1、按车牌号升序排序\n");
    printf("2、按车牌号降序排序\n");
    printf("3、按车型升序排序\n");
    printf("4、按车型降序排序\n");
    printf("请选择：");
    scanf("%d", &choice);

    int i, j;
    BikeInfo temp;
    if (choice == 1) {
        for (i = 0; i < bikeCount - 1; i++) {
            for (j = i + 1; j < bikeCount; j++) {
                if (strcmp(bikes[i].plate, bikes[j].plate) > 0) {
                    temp = bikes[i];
                    bikes[i] = bikes[j];
                    bikes[j] = temp;
                }
            }
        }
    } else if (choice == 2) {
        for (i = 0; i < bikeCount - 1; i++) {
            for (j = i + 1; j < bikeCount; j++) {
                if (strcmp(bikes[i].plate, bikes[j].plate) < 0) {
                    temp = bikes[i];
                    bikes[i] = bikes[j];
                    bikes[j] = temp;
                }