C ++ / CX CreateTask传递值

Question

我将值传递给CreateTask中的类的属性，使用AsyncTask类之外的属性值，属性值不会更改，但属性值会在按钮单击事件中更改。

AsyncTask类中的CreateTask，AsyncTask类具有N属性

#include <stdio.h>
#include <unistd.h>
#include <string.h>
#define SIZE 4096

typedef struct  s_stack
{
    int         capacity;
    int         count;
    int         top;
    char        *list[SIZE];
}               t_stack;

char    *up(t_stack *stack)
{
    if (stack->count == 0)
        return (stack->list[0]);
    return (stack->list[stack->count--]);
}

char    *down(t_stack *stack)
{
    if (stack->count > stack->top)
    {
        stack->count = stack->top;
        return ("");
    }
    if (stack->count < stack->top)
        return (stack->list[stack->count++]);
    return ("");
}

void        create_stack(t_stack *stack)
{
    memset(stack->list, 0, SIZE);
    stack->count = -1;
    stack->top = -1;
    stack->capacity = SIZE;
}

void        push(t_stack *stack, char *value)
{
    if (stack->top == stack->capacity - 1)
        return ;
    stack->list[++stack->top] = value;
}

int main()
{
    t_stack         stack;
    create_stack(&stack);
    push(&stack, "1");  
    push(&stack, "2");  
    push(&stack, "3");  
    push(&stack, "4");  
    push(&stack, "5");  
    push(&stack, "6");  
    push(&stack, "7");  
    push(&stack, "8");  
    push(&stack, "9");  
    push(&stack, "10");
    stack.count = stack.top;
    while (1)
    {
        int ret;
        char buf[4];
        ret = read(0, buf, 4);
        if (buf[0] == 'u')
            printf("%s\n", up(&stack));
        else if (buf[0] == 'd')
            printf("%s\n", down(&stack));
        else
            break ;
    }
    return 0;
}