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如何让数字看起来像电影《黑客帝国》中的数字一样，带有一定的缩进，最好是绿色。所以我做了一个循环，说我想重复这个动作几百次，但i我只输出一部分数字，而不是指定的变量数。

import javax.swing.*;
import java.awt.*;
import java.util.Random;

public class BigProject extends JFrame {
    public static void main(String[] args) throws Exception {

        int R = 0;
        int G = 255;
        int B = 0;
        int repeat = 250;

        JFrame j = new JFrame();
        Robot robot = new Robot();
        Random random = new Random();

        j.getContentPane().setBackground(Color.BLACK);
        j.setExtendedState(Frame.MAXIMIZED_BOTH);
        j.setDefaultCloseOperation(EXIT_ON_CLOSE);
        j.setTitle("Matrix");
        j.setLayout(new FlowLayout());
        j.setVisible(true);

        FlowLayout setting = new FlowLayout(0, 0, 0);
        j.getContentPane().setLayout(setting);

        for (int Repeat = 0;Repeat != repeat; Repeat++) {
            int i = random.nextInt(10);
            JLabel label = new JLabel(String.valueOf(i), JLabel.CENTER);
            label.setPreferredSize(new Dimension(100, 60));
            label.setFont(label.getFont().deriveFont(45.0F));
            label.setVisible(true);
            j.add(label);
        }
    }
}

结果如下：

大家好，我正在做一个需要计算时间的游戏，有一个脚本可以旋转太阳，同时找到时间。

using UnityEngine;

public class Sun_Settings : MonoBehaviour
{
    public Gradient DirectinalGradient;
    public Gradient AmbientLight;
    public float SecondsPerDayv = 60f;
    public float TimeProgress = 0f;
    public Light DirectionalLight;
    public float ThisHour;
    Vector3 DefaultAngles;
    void Start()
    {
        DefaultAngles = DirectionalLight.transform.localRotation.eulerAngles;
    }

    void Update()
    {
        TimeProgress += Time.deltaTime / SecondsPerDayv;
        if(TimeProgress >= 1f)
        {
            TimeProgress = 0f;
        }
        DirectionalLight.color = DirectinalGradient.Evaluate(TimeProgress);
        RenderSettings.ambientLight = AmbientLight.Evaluate(TimeProgress);
        DirectionalLight.transform.localEulerAngles = new Vector3(x: 360 * TimeProgress - 90f, y: DefaultAngles.x, z: DefaultAngles.z);
        ThisHour = TimeProgress * 24f;
    }
}

该脚本使用余数来查找小时数，即，它得到的不是中午 12 点，而是12.715373。是否可以只提取浮点 变量的整数部分而不进行四舍五入？

我根据 Listview 类进行分页。当我点击任何按钮 - “下一页”，“1 2 3”时，我会被重定向到主页“主页”。也许有人可以解释为什么会发生这种情况？我不是要求你为我编写代码，只是解释一下这里发生了什么。

视图.py

class AllPost(DataMixin, ListView):
template_name = 'main_package/all_post.html'
context_object_name = 'all_post'
title_page = 'ПЛАТФОРМА44.РУ - Все статьи'
paginate_by = 9

def get_queryset(self):
    return Post.published.all().select_related('cat')

那也不起作用。

class AllPost(DataMixin, ListView):
template_name = 'main_package/all_post.html'
context_object_name = 'all_post'
title_page = 'ПЛАТФОРМА44.РУ - Все статьи'
contact_list = Post.published.all()
paginator = Paginator(contact_list, 4)
paginate_by = 9

def get_queryset(self):
    return Post.published.all()

def get_context_data(self, **kwargs):
    context = super().get_context_data(**kwargs)
    context['page_obj'] = self.paginator.page(self.request.GET.get('page', 1))
    return context

它也无法通过该函数起作用。

contact_list = Post.published.all()
paginator = Paginator(contact_list, 3)
page_number = request.GET.get('page')
page_obj = paginator.get_page(page_number)
return render(request, 'main_package/all_post.html',
              {'title': 'Все статьи', 'page_obj': page_obj})

全部帖子.html

    <a href="?page={{ page_obj.next_page_number }}" class="button" title="Следующая страница"
       {% if not page_obj.has_next %} style="display:none;" {% endif %}>Следующая страница <i
            class="fa fa-angle-double-right"></i></a>
    <div class="pagination">
        {% if page_obj.has_previous %}
        <a href="?page={{ page_obj.previous_page_number }}" class="pagination-left" title="Предыдущая страница">&laquo;</a>
        {% endif %}
        {% for p in page_obj.paginator.page_range %}
        {% if page_obj.number == p %}
        <span class="active">{{ p }}</span>
        {% else %}
        <a href="?page={{ p }}" title="Перейти на страницу {{ p }}">{{ p }}</a>
        {% endif %}
        {% endfor %}
        {% if page_obj.has_next %}
        <a href="?page={{ page_obj.next_page_number }}" class="pagination-right"
           title="Следующая страница">&raquo;</a>
        {% endif %}
    </div>
</section>

而且它也不起作用。

{% if page_obj.has_other_pages %}
<nav class="list-pages">
<ul>
    {% if page_obj.has_previous %}
    <li class="page-num">
        <a href="?page={{ page_obj.previous_page_number }}">&lt;</a>
    </li>
    {% endif %}
    {% for p in paginator.page_range %}
    {% if page_obj.number == p %}
    <li class="page-num page-num-selected">{{ p }}</li>
    {% elif p >= page_obj.number|add:-2 and p <= page_obj.number|add:2 %}
    <li class="page-num">
        <a href="?page={{ p }}">{{ p }}</a>
    </li>
    {% endif %}
    {% endfor %}
    {% if page_obj.has_next %}
    <li class="page-num">
        <a href="?page={{ page_obj.next_page_number }}">&gt;</a>
    </li>
    {% endif %}
 </ul>
 </nav>
{% endif %}

urls.py

urlpatterns = [
path('', views.PlatformaHome.as_view(), name='home'),
path('category/<slug:cat_slug>/', views.PlatformaCategory.as_view(), name='category'),
path('post/<slug:post_slug>/', views.ShowPost.as_view(), name='post'),
path('addpage/', views.AddPage.as_view(), name='addpage'),
path('edit/<slug:slug>/', views.UpdatePage.as_view(), name='edit_page'),

path('all_post/', views.AllPost.as_view(), name='all_post'),

我正在尝试通过 Arduino ADI 运行代码。似乎我已经正确设置了所有内容，但出现了此错误。我尝试切换到早期版本，但似乎没有任何反应。我在 Windows 10 上运行它。

#define LED 2
    
void setup() {
      // put your setup code here, to run once:
      pinMode(LED, OUTPUT);
    
}
    
void loop() {
      // put your main code here, to run repeatedly:
      digitalWrite(LED, HIGH);
      delay(1000);
      digitalWrite(LED, LOW);
      delay(1000);
}

不仅此代码而且其他代码也会出现错误。

错误：

thread 'main' panicked at 'assertion failed: `(left != right)`
  left: `0`,
 right: `0`: Failed to get path name. Error code: 3', main.rs:65:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
exit status 101
    
Compilation error: exit status 101

如何解决这个问题？您是如何安装 docker 的？通过安装程序 (dmg) 还是通过 homebrew cask。通过 dmg 安装