如何在C中使用链接实现在队列中插入和显示元素

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

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

void initQueue(Queue* queue) {
    queue->front = NULL;
    queue->rear = NULL;
}

void enqueue(Queue* queue, int data) {
    Node* newNode = (Node*)malloc(sizeof(Node));
    newNode->data = data;
    newNode->next = NULL;

    if (queue->rear == NULL) {
        queue->front = newNode;
        queue->rear = newNode;
    } else {
        queue->rear->next = newNode;
        queue->rear = newNode;
    }
}

void displayQueue(Queue* queue) {
    if (queue->front == NULL) {
        printf("Queue is empty.\n");
        return;
    }

    Node* current = queue->front;
    while (current != NULL) {
        printf("%d ", current->data);
        current = current->next;
    }
    printf("\n");
}

#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* queue) {
    queue->front = NULL;
    queue->rear = NULL;
}

void enqueue(Queue* queue, int data) {
    Node* newNode = (Node*)malloc(sizeof(Node));
    newNode->data = data;
    newNode->next = NULL;

    if (queue->rear == NULL) {
        queue->front = newNode;
        queue->rear = newNode;
    } else {
        queue->rear->next = newNode;
        queue->rear = newNode;
    }
}

void displayQueue(Queue* queue) {
    if (queue->front == NULL) {
        printf("Queue is empty.\n");
        return;
    }

    Node* current = queue->front;
    while (current != NULL) {
        printf("%d ", current->data);
        current = current->next;
    }
    printf("\n");
}

int main() {
    Queue queue;
    initQueue(&queue);

    enqueue(&queue, 1);
    enqueue(&queue, 2);
    enqueue(&queue, 3);

    displayQueue(&queue);

    return 0;
}