C# XNA NullReferenceException我认为LoadContent赢了'；跑不动

我正在创建一个xna游戏，它编译得很好，但是当它到达spriteBatch.Begin（）时会抛出一个nullreferenceexception；在我的spritemanager类中（这是一个可绘制的游戏组件）。我认为loadContent没有运行，没有初始化spritebatch，但我不确定如何让它运行

SpriteManager加载内容代码：

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

        player = new Player(Game.Content.Load<Texture2D>("Images/asteroids_player"),
                            new Vector2(Game.Window.ClientBounds.X / 2, Game.Window.ClientBounds.Y / 2),
                            Vector2.Zero,
                            0f,
                            new Point( 27, 40 ),
                            new Point( 1, 1 ),
                            new Point( 1, 2 ));

        asteroidList = new List<Asteroid>();

        base.LoadContent();
    }

游戏1代码：

public class Game1 : Microsoft.Xna.Framework.Game
{
    GraphicsDeviceManager graphics;
    SpriteBatch spriteBatch;
    SpriteManager spriteManager;

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

    protected override void Initialize()
    {
        // TODO: Add your initialization logic here

        base.Initialize();
    }

    protected override void LoadContent()
    {
        // Create a new SpriteBatch, which can be used to draw textures.
        spriteBatch = new SpriteBatch(GraphicsDevice);

        // Creates and loads a SpriteManager to update/draw sprite objects
        spriteManager = new SpriteManager(this);
        Components.Add(spriteManager);

        base.LoadContent();
    }

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

    protected override void Update(GameTime gameTime)
    {
        // Allows the game to exit
        if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
            this.Exit();

        // TODO: Add your update logic here

        base.Update(gameTime);
    }

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

        // TODO: Add your drawing code here

        base.Draw(gameTime);
    }

---

在调用

base.Initialize（）

之前，在

Initialize（）方法中添加SpriteManager组件。Initialize（）

您可以发布

类播放器（Texture2d Texture2d…）

？几乎所有

NullReferenceException

的情况都是相同的。请参阅“”以获取一些提示。如果您认为LoadContent无法运行，您应该尝试自己调试。在那里放一个断点，看看它是否没有运行。谢谢你，我在loadContent方法中意外地使用了断点，这是一个愚蠢的错误，但我可能要花几个小时才能找到。

public class Game1 : Microsoft.Xna.Framework.Game
{
    GraphicsDeviceManager graphics;
    SpriteBatch spriteBatch;
    SpriteManager spriteManager;

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

    protected override void Initialize()
    {
        // TODO: Add your initialization logic here

        base.Initialize();
    }

    protected override void LoadContent()
    {
        // Create a new SpriteBatch, which can be used to draw textures.
        spriteBatch = new SpriteBatch(GraphicsDevice);

        // Creates and loads a SpriteManager to update/draw sprite objects
        spriteManager = new SpriteManager(this);
        Components.Add(spriteManager);

        base.LoadContent();
    }

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

    protected override void Update(GameTime gameTime)
    {
        // Allows the game to exit
        if (GamePad.GetState(PlayerIndex.One).Buttons.Back == ButtonState.Pressed)
            this.Exit();

        // TODO: Add your update logic here

        base.Update(gameTime);
    }

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

        // TODO: Add your drawing code here

        base.Draw(gameTime);
    }