字段初始化程序无法引用非静态字段方法或属性'Component.GetComponent< Rigidbody>()' [英] a field initializer cannot reference the nonstatic field method or property 'Component.GetComponent<Rigidbody>()'

问题描述

我不知道发生了什么，我正在尝试遵循Unity 4编写的教程，但发生了很多变化.据我所知，现在我被困住了.

I have no idea what is going on, I am trying to follow a tutorial that was written in Unity 4 and a lot has changed. This is as far as I have gotten and now I am stuck.

public class PlayerMovement : MonoBehaviour
{
    public float moveSpeed;

    public static Rigidbody rb = GetComponent<Rigidbody>();
    private Vector3 input;

    // Use this for initialization
    void Start()
    {

    }

    // Update is called once per frame
    void Update()
    {
        input = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
        GetComponent<Rigidbody>().AddForce(input);
    }
}

推荐答案

您不能在函数外部使用Unity的GetComponent函数.把它放在一个函数中就可以了.在这种情况下，最好将其放在Start()或Awake()函数中.

You can't use Unity's GetComponent function outside a function. Put it in a function and you should be fine. In this is case, it is appropriate to put it in a Start() or Awake() function.

public class PlayerMovement : MonoBehaviour
{
    public float moveSpeed;

    public static Rigidbody rb;
    private Vector3 input;

    // Use this for initialization
    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    // Update is called once per frame
    void Update()
    {
        input = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
        GetComponent<Rigidbody>().AddForce(input);
    }
}

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