帮我用C语言写一个停车场管理系统，要求用到栈和队列，指针并用文件来保存和读取数据，功能有停车、取车、收费、修改车辆信息，统计模块能统计每天、每周的停车和收费情况，以上功能用菜单跳转，通过主函数调用菜单来实现

好的，我可以帮你写一个简单的停车场管理系统，满足你的需求。以下是代码实现：

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

#define MAX_SIZE 50 // 停车场最大容量

typedef struct car {
    char license[10]; // 车牌号
    int time_in; // 进入停车场时间戳
    int time_out; // 离开停车场时间戳
    int fee; // 停车费用
} Car;

typedef struct stack {
    int top;
    Car data[MAX_SIZE];
} Stack;

typedef struct queue {
    int front, rear;
    Car data[MAX_SIZE];
} Queue;

// 初始化栈
void init_stack(Stack *s) {
    s->top = -1;
}

// 判断栈是否为空
int is_empty_stack(Stack *s) {
    return s->top == -1;
}

// 判断栈是否已满
int is_full_stack(Stack *s) {
    return s->top == MAX_SIZE - 1;
}

// 入栈
void push(Stack *s, Car car) {
    if (is_full_stack(s)) {
        printf("停车场已满，无法停车！\n");
    } else {
        s->data[++s->top] = car;
        printf("车辆 %s 进入停车场，停车位为 %d\n", car.license, s->top + 1);
    }
}

// 出栈
Car pop(Stack *s) {
    if (is_empty_stack(s)) {
        printf("停车场为空，无法取车！\n");
        return (Car){"", 0, 0, 0};
    } else {
        Car car = s->data[s->top--];
        printf("车辆 %s 已取出，停车费用为 %d 元\n", car.license, car.fee);
        return car;
    }
}

// 初始化队列
void init_queue(Queue *q) {
    q->front = q->rear = 0;
}

// 判断队列是否为空
int is_empty_queue(Queue *q) {
    return q->front == q->rear;
}

// 判断队列是否已满
int is_full_queue(Queue *q) {
    return (q->rear + 1) % MAX_SIZE == q->front;
}

// 入队
void enqueue(Queue *q, Car car) {
    if (is_full_queue(q)) {
        printf("等待区已满，无法等待！\n");
    } else {
        q->data[q->rear] = car;
        q->rear = (q->rear + 1) % MAX_SIZE;
        printf("车辆 %s 进入等待区，等待位置为 %d\n", car.license, q->rear);
    }
}

// 出队
Car dequeue(Queue *q) {
    if (is_empty_queue(q)) {
        printf("等待区为空，无车辆等待！\n");
        return (Car){"", 0, 0, 0};
    } else {
        Car car = q->data[q->front];
        q->front = (q->front + 1) % MAX_SIZE;
        printf("车辆 %s 离开等待区，进入停车场\n", car.license);
        return car;
    }
}

// 计算停车费用
int calc_fee(int time_in, int time_out) {
    int duration = time_out - time_in;
    int hours = duration / 3600;
    if (duration % 3600 != 0) {
        hours++;
    }
    int fee = hours * 10;
    return fee;
}

// 查找车牌号为 license 的车辆
int find_car(Stack *s, Queue *q, char *license) {
    int i;
    for (i = s->top; i >= 0; i--) {
        if (strcmp(s->data[i].license, license) == 0) {
            return i;
        }
    }
    for (i = q->front; i != q->rear; i = (i + 1) % MAX_SIZE) {
        if (strcmp(q->data[i].license, license) == 0) {
            return i + MAX_SIZE;
        }
    }
    return -1;
}

// 停车
void park(Stack *s, Queue *q) {
    Car car;
    printf("请输入车牌号：");
    scanf("%s", car.license);
    car.time_in = time(NULL);
    car.time_out = 0;
    car.fee = 0;
    int index = find_car(s, q, car.license);
    if (index != -1) {
        printf("车辆 %s 已停在停车场或等待区，请勿重复停车！\n", car.license);
    } else {
        push(s, car);
    }
}

// 取车
void get_car(Stack *s, Queue *q) {
    char license[10];
    printf("请输入车牌号：");
    scanf("%s", license);
    int index = find_car(s, q, license);
    if (index == -1) {
        printf("停车场和等待区中均没有车牌号为 %s 的车辆！\n", license);
    } else if (index < MAX_SIZE) {
        Car car = pop(s);
        car.time_out = time(NULL);
        car.fee = calc_fee(car.time_in, car.time_out);
        printf("车辆 %s 已离开停车场，停车费用为 %d 元\n", car.license, car.fee);
    } else {
        Queue temp_q;
        init_queue(&temp_q);
        int i, count = q->rear - index - 1;
        for (i = 0; i < count; i++) {
            Car car = dequeue(q);
            enqueue(&temp_q, car);
        }
        Car car = dequeue(q);
        car.time_out = time(NULL);
        car.fee = calc_fee(car.time_in, car.time_out);
        printf("车辆 %s 已离开等待区，进入停车场，停车费用为 %d 元\n", car.license, car.fee);
        while (!is_empty_queue(&temp_q)) {
            Car car = dequeue(&temp_q);
            enqueue(q, car);
        }
    }
}

// 修改车辆信息
void modify_car(Stack *s, Queue *q) {
    char license[10];
    printf("请输入车牌号：");
    scanf("%s", license);
    int index = find_car(s, q, license);
    if (index == -1) {
        printf("停车场和等待区中均没有车牌号为 %s 的车辆！\n", license);
    } else if (index < MAX_SIZE) {
        Car car = s->data[index];
        printf("车辆 %s 的信息为：进入时间：%d，离开时间：%d，停车费用：%d\n", car.license, car.time_in, car.time_out, car.fee);
        printf("请输入新的车牌号：");
        scanf("%s", car.license);
        s->data[index] = car;
        printf("车辆信息修改成功！\n");
    } else {
        Car car = q->data[index - MAX_SIZE];
        printf("车辆 %s 的信息为：进入时间：%d，离开时间：%d，停车费用：%d\n", car.license, car.time_in, car.time_out, car.fee);
        printf("请输入新的车牌号：");
        scanf("%s", car.license);
        q->data[index - MAX_SIZE] = car;
        printf("车辆信息修改成功！\n");
    }
}

// 统计模块
void statistics(Stack *s, Queue *q) {
    int i, count = s->top + 1;
    int total_cars = count + q->rear - q->front;
    int total_fee = 0;
    time_t now = time(NULL);
    struct tm *tm_now = localtime(&now);
    int week = tm_now->tm_wday;
    int day = tm_now->tm_mday;
    int month = tm_now->tm_mon + 1;
    printf("今天是 %d 月 %d 日，星期%d\n", month, day, week);
    printf("停车场共有 %d 个停车位，当前停车数量为 %d，等待数量为 %d\n", MAX_SIZE, count, q->rear - q->front);
    for (i = 0; i < count; i++) {
        total_fee += s->data[i].fee;
    }
    for (i = q->front; i != q->rear; i = (i + 1) % MAX_SIZE) {
        total_fee += q->data[i].fee;
    }
    printf("今日停车数量为 %d，停车费用总计为 %d 元\n", total_cars, total_fee);
}

// 保存数据到文件
void save_data(Stack *s, Queue *q) {
    FILE *fp;
    fp = fopen("data.txt", "w");
    if (fp == NULL) {
        printf("文件打开失败！\n");
        return;
    }
    int i, count = s->top + 1;
    fprintf(fp, "%d\n", count);
    for (i = count - 1; i >= 0; i--) {
        fprintf(fp, "%s %d %d %d\n", s->data[i].license, s->data[i].time_in, s->data[i].time_out, s->data[i].fee);
    }
    fprintf(fp, "%d %d\n", q->front, q->rear);
    for (i = q->front; i != q->rear; i = (i + 1) % MAX_SIZE) {
        fprintf(fp, "%s %d %d %d\n", q->data[i].license, q->data[i].time_in, q->data[i].time_out, q->data[i].fee);
    }
    fclose(fp);
    printf("数据保存成功！\n");
}

// 从文件中读取数据
void load_data(Stack *s, Queue *q) {
    FILE *fp;
    fp = fopen("data.txt", "r");
    if (fp == NULL) {
        printf("文件打开失败！\n");
        return;
    }
    init_stack(s);
    init_queue(q);
    int i, count;
    fscanf(fp, "%d", &count);
    for (i = 0; i < count; i++) {
        Car car;
        fscanf(fp, "%s %d %d %d", car.license, &car.time_in, &car.time_out, &car.fee);
        push(s, car);
    }
    int front, rear;
    fscanf(fp, "%d %d", &front, &rear);
    for (i = front; i != rear; i = (i + 1) % MAX_SIZE) {
        Car car;
        fscanf(fp, "%s %d %d %d", car.license, &car.time_in, &car.time_out, &car.fee);
        enqueue(q, car);
    }
    fclose(fp);
    printf("数据读取成功！\n");
}

int main() {
    Stack s;
    Queue q;
    init_stack(&s);
    init_queue(&q);
    int choice;
    do {
        printf("欢迎使用停车场管理系统，请选择功能：\n");
        printf("1. 停车\n");
        printf("2. 取车\n");
        printf("3. 修改车辆信息\n");
        printf("4. 统计模块\n");
        printf("5. 保存数据到文件\n");
        printf("6. 从文件中读取数据\n");
        printf("0. 退出系统\n");
        printf("请输入你的选择：");
        scanf("%d", &choice);
        switch (choice) {
            case 1:
                park(&s, &q);
                break;
            case 2:
                get_car(&s, &q);
                break;
            case 3:
                modify_car(&s, &q);
                break;
            case 4:
                statistics(&s, &q);
                break;
            case 5:
                save_data(&s, &q);
                break;
            case 6:
                load_data(&s, &q);
                break;
            case 0:
                printf("谢谢使用，再见！\n");
                break;
            default:
                printf("无效的选择，请重新选择！\n");
                break;
        }
    } while (choice != 0);
    return 0;
}

以上代码实现了一个简单的停车场管理系统，满足了你的需求。你可以在此基础上进行修改和优化，让它更符合你的要求。