用C语言写一个链队列实现的银行取钱模拟

好的，我可以回答这个问题。以下是用C语言写一个链队列实现的银行取钱模拟的代码：

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

typedef struct node {
    int data;
    struct node *next;
} Node;

typedef struct queue {
    Node *front;
    Node *rear;
} Queue;

void initQueue(Queue *q) {
    q->front = q->rear = (Node *)malloc(sizeof(Node));
    q->front->next = NULL;
}

int isEmpty(Queue *q) {
    return q->front == q->rear;
}

void enQueue(Queue *q, int data) {
    Node *newNode = (Node *)malloc(sizeof(Node));
    newNode->data = data;
    newNode->next = NULL;
    q->rear->next = newNode;
    q->rear = newNode;
}

int deQueue(Queue *q) {
    if (isEmpty(q)) {
        printf("Queue is empty.\n");
        return -1;
    }
    Node *p = q->front->next;
    int data = p->data;
    q->front->next = p->next;
    if (q->rear == p) {
        q->rear = q->front;
    }
    free(p);
    return data;
}

int main() {
    Queue q;
    initQueue(&q);
    int choice, amount;
    do {
        printf("1. Deposit\n");
        printf("2. Withdraw\n");
        printf("3. Exit\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);
        switch (choice) {
            case 1:
                printf("Enter amount to deposit: ");
                scanf("%d", &amount);
                enQueue(&q, amount);
                printf("Deposit successful.\n");
                break;
            case 2:
                printf("Enter amount to withdraw: ");
                scanf("%d", &amount);
                if (amount > deQueue(&q)) {
                    printf("Withdrawal failed. Insufficient balance.\n");
                } else {
                    printf("Withdrawal successful.\n");
                }
                break;
            case 3:
                printf("Exiting...\n");
                break;
            default:
                printf("Invalid choice.\n");
        }
    } while (choice != 3);
    return 0;
}

这个程序实现了一个银行取钱模拟，使用了链队列来存储用户的存款和取款请求。用户可以选择存款、取款或退出程序。如果用户选择存款，程序会要求输入存款金额，并将其加入队列中；如果用户选择取款，程序会要求输入取款金额，并从队列中取出相应的金额进行比较，如果余额不足则取款失败，否则取款成功。如果用户选择退出程序，程序会结束运行。