C# Getcomponet.var返回null，但public var不为null

我有一个问题，我有一个游戏对象列表被传递到一个函数中。我在列表中的第i个位置获取游戏对象，并获取放置在游戏对象上的脚本的公共变量。var应该返回一个gameobject，但返回null。这就是我的代码的工作原理

脚本级别机制使用脚本节点机制创建游戏对象网格

levelMechanics调用脚本roomSpawner，它告诉每个节点在那里运行nodeMechanics代码，该代码获取节点周围的节点并将它们存储在公共变量中

这两个步骤都非常有效，我可以单击每个节点，在层次结构中，附加到每个节点的nodeMechanics脚本将告诉我当前节点的上、下、左、右节点。问题是，如果我尝试访问节点周围的节点，我会得到null。我试过的东西

通过levelMechanics而不是levelMechanics将列表放入roomSpawner，在roomSpawner中获取列表

传入列表并复制它，然后访问复制的列表

列表[i].getcomponet（nodemechanics）.nodeDown和列表[i].gameobject.getcomponet（nodemechanics）.nodeDown

获取节点的节点机制，存储它，然后尝试获取存储的节点机制的数据，而不是直接获取数据

我只是迷路了，因为层次结构说这些变量不是空的，但当我试图在代码中访问它们时，它们是空的。下面的代码是我尝试访问VAR的代码

  public GameObject test;
  public nodeMechanics temp;

public void IntializeNodes(List<GameObject> nodes)
    {
        for (int i = 0; i < nodes.Count; i++)
        {
            nodes[i].gameObject.GetComponent<nodeMechanics>().test = true;
//im not sure why i am able to write but not read

        }

    }
    public void SpawnObjects(List<GameObject> nodes)
    {
        //this function is being called in level mechanics and the list is being passed in
        print("nodes created");
        for (int i = 0; i < nodes.Count; i++)
        {
            noders.Add(nodes[i]);//the current method is copy over the list and try to access the copy but that doesnt work. i tried not copying
            test = noders[i].gameObject;//ive tried not splint this up and jumping straight into nodes[i]..GetComponent<nodeMechanics>().nodeDown;
            temp = test.GetComponent<nodeMechanics>();
            print(temp.nodeDown);//no matter what i do this always returns null. but in the hierarchy it is not

为澄清以下代码工作不正常

 for (int i = 0; i < nodes.Count; i++)
        {
            noders.Add(nodes[i]);//the current method is copy over the list and try to access the copy but that doesnt work. i tried not copying
            test = noders[i].gameObject;//ive tried not splint this up and jumping straight into nodes[i]..GetComponent<nodeMechanics>().nodeDown;
            temp = test.GetComponent<nodeMechanics>();
            print(temp.nodeDown);

for（int i=0；i

---

temp.nodeDown应该返回正确的节点，但返回null，在层次结构中，它显示正确的对象，而不是null已解决，因为我在初始化节点之后调用了产卵室，我想unity会在彼此的顶部运行它们

，这对我来说是大量的文本和代码，没有更明确的指导来阅读哪行code有问题。当然，我为Ya编辑了如果您使用

var bob

而不是

temp

（然后在下一行使用

bob.nodeDown

），会发生什么情况？这样行吗？仍然返回null刚刚添加的函数GameObject getDown（）{return nodeDown；}到节点机制并调用它，我试图打印出nodeDown，但仍然得到null

public class nodeMechanics : MonoBehaviour
{
    public GameObject nodeUp, nodeDown, nodeLeft, nodeRight, forced;
    public bool test = false;
    void FixedUpdate()
    {
        if (test)
        {
            FindAround();
        }
        if(forced != null)
        {
            Instantiate(forced, this.transform.position, forced.transform.rotation);
        }
    }

    public void FindAround()
    {
        int mask = LayerMask.GetMask("Node");
        RaycastHit up, down, left, right;
        if (Physics.Raycast(this.transform.position, Vector3.forward, out up, 1, mask))
        {
            nodeUp = up.collider.transform.gameObject;
        }
        if (Physics.Raycast(this.transform.position, Vector3.back, out down, 1, mask))
        {
            nodeDown = down.collider.transform.gameObject;
        }
        if (Physics.Raycast(this.transform.position, Vector3.left, out left, 1, mask))
        {
            nodeLeft = left.collider.transform.gameObject;
        }
        if (Physics.Raycast(this.transform.position, Vector3.right, out right, 1, mask))
        {
            nodeRight = right.collider.transform.gameObject;
        }
    }
}

 for (int i = 0; i < nodes.Count; i++)
        {
            noders.Add(nodes[i]);//the current method is copy over the list and try to access the copy but that doesnt work. i tried not copying
            test = noders[i].gameObject;//ive tried not splint this up and jumping straight into nodes[i]..GetComponent<nodeMechanics>().nodeDown;
            temp = test.GetComponent<nodeMechanics>();
            print(temp.nodeDown);