c语言怎么实现类

<code class="c"><a style="color:#f60; text-decoration:underline;" href="https://www.php.cn/zt/58423.html" target="_blank">typedef</a> struct {
    int data;
    void (*print)(struct Node*);
} Node;

void print_node(struct Node* node) {
    printf("%d\\n", node-&gt;data);
}

Node* create_node(int data) {
    Node* node = malloc(sizeof(Node));
    node-&gt;data = data;
    node-&gt;print = print_node;
    return node;
}