完成程序后列表似乎仍然存在

Question

我在 Visual Studio 2017 使用 MonoGame 编写小行星驱逐舰小游戏时发现了一件很奇怪的事情。在 LoadContent() 方法中，我将我的宇宙飞船的纹理加载到 Sprites 列表中，它是现场创作。然后将此列表输入 Spaceship 构造函数，以便宇宙飞船获得其纹理。代码如下：

protected override void LoadContent()
        {
            spriteBatch = new SpriteBatch(GraphicsDevice);

            List<Sprite> spaceship1Sprites = new List<Sprite>
            {
                new Sprite(Content, "Spaceship1On"),
                new Sprite(Content, "Spaceship1Off"),
                new Sprite(Content, "Bullet1")
            };

            spaceship1 = new Spaceship(spaceship1Sprites, new Vector2(graphics.GraphicsDevice.DisplayMode.Width / 2, graphics.GraphicsDevice.DisplayMode.Height / 2))
            {
                Controls = new Input(Keys.W, Keys.D, Keys.A, Keys.Space)
            };
        }

奇怪的是，如果在运行一次程序后，我删除了定义 Sprite 列表的行，

            //List<Sprite> spaceship1Sprites = new List<Sprite>
            //{
            //    new Sprite(Content, "Spaceship1On"),
            //    new Sprite(Content, "Spaceship1Off"),
            //    new Sprite(Content, "Bullet1")
            //};

程序仍将运行，即使该列表未在程序的其他任何地方定义，并且 Spaceship 构造函数应该获取一个不存在的列表作为其第一个参数。这怎么还能用？

这不是阻止我的程序运行的原因，但我仍然想知道是什么原因，以便我对 C# 的工作原理有更多了解。

编辑：在 Game1 class 中添加其余代码。 Spaceshipclass不包含列表spaceship1Sprites，它有三个精灵的三个字段，在构造函数中加载。

using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
using Microsoft.Xna.Framework.Input;
using System;
using System.Collections.Generic;
using System.IO;

namespace Asteroid_Destroyer
{
    public class Game1 : Game
    {
        public static GraphicsDeviceManager graphics;
        SpriteBatch spriteBatch;

        KeyboardState currentKeyboardState, previousKeyboardState;
        bool paused = false;

        Spaceship spaceship1;

        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            Content.RootDirectory = "Content";
        }

        protected override void Initialize()
        {
            //Change screen resolution
            graphics.PreferredBackBufferWidth = graphics.GraphicsDevice.DisplayMode.Width;
            graphics.PreferredBackBufferHeight = graphics.GraphicsDevice.DisplayMode.Height;
            graphics.IsFullScreen = true;
            graphics.HardwareModeSwitch = false; //fullscreen borderless
            graphics.ApplyChanges();

            base.Initialize();
        }

        protected override void LoadContent()
        {
            spriteBatch = new SpriteBatch(GraphicsDevice);

            List<Sprite> spaceship1Sprites = new List<Sprite>
            {
                new Sprite(Content, "Spaceship1On"),
                new Sprite(Content, "Spaceship1Off"),
                new Sprite(Content, "Bullet1")
            };

            spaceship1 = new Spaceship(spaceship1Sprites, new Vector2(graphics.GraphicsDevice.DisplayMode.Width / 2, graphics.GraphicsDevice.DisplayMode.Height / 2))
            {
                Controls = new Input(Keys.W, Keys.D, Keys.A, Keys.Space)
            };
        }

        protected override void UnloadContent()
        {
            // TODO: Unload any non ContentManager content here
        }

        protected override void Update(GameTime gameTime)
        {
            currentKeyboardState = Keyboard.GetState();

            if (currentKeyboardState.IsKeyDown(Keys.Escape))
                Exit();

            if(currentKeyboardState.IsKeyDown(Keys.P) && previousKeyboardState.IsKeyUp(Keys.P))
                paused = paused ? false : true;

            if (!paused)
                spaceship1.Update();

            base.Update(gameTime);
            previousKeyboardState = currentKeyboardState;
        }

        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.Black);

            spriteBatch.Begin();
            spaceship1.Draw(spriteBatch);
            spriteBatch.End();

            base.Draw(gameTime);
        }
    }
}

编辑 2：已解决！正如预期的那样，这与代码无关，而是与 Visual Studio 的内容有关运行ning。如果当前构建中有错误，我的 Visual Studio 配置让以前的工作版本运行不知何故......但我已经找到了改变这个的设置，所以谜团解决了！

Answer 1

显然，设置中有一个选项可以在出现错误时启用 Visual Studio 到运行项目的先前工作构建，这在我的安装中默认启用（除非我无意中错误地启用了该选项）。

我在尝试调查问题时在另一个问题中找到了解决方案，感谢 this answer：

Try changing this value:

Tools

Options

Projects and Solutions

Build and Run

On Run, when build or deployment errors occur: Do not Launch

完成程序后列表似乎仍然存在

List seems to still exist after finishing program

c#

xna

visual-studio

monogame