昨天打完程式碼後，出現下面的Bug：

Assets/LineRendererSetting.cs(5,22): error CS1514: { expected
Assets/LineRendererSetting.cs(5,22): error CS1513: } expected
Assets/LineRendererSetting.cs(5,22): error CS1022: Type or namespace definition, or end-of-file expected
Assets/LineRendererSetting.cs(5,23): error CS0116: A namespace cannot directly contain members such as fields or methods
Assets/LineRendererSetting.cs(5,32): error CS1022: Type or namespace definition, or end-of-file expected
Assets/LineRendererSetting.cs(5,33): error CS0116: A namespace cannot directly contain members such as fields or methods
Assets/LineRendererSetting.cs(5,50): error CS1022: Type or namespace definition, or end-of-file expected
Assets/LineRendererSetting.cs(5,52): error CS0116: A namespace cannot directly contain members such as fields or methods
Assets/LineRendererSetting.cs(6,1): error CS1022: Type or namespace definition, or end-of-file expected
Assets/LineRendererSetting.cs(32,1): error CS1022: Type or namespace definition, or end-of-file expected

沒get到是什麼意思，找了好久，才發現說原來是因為Unity創建c# script時，會直接把class名稱跟檔案名同名，但我一開始建立時有寫錯檔案名，後來才改檔名的，但是class的名稱還是保持舊的名字，所以就發生以上錯誤。

public class 與C# script檔名相同 : MonoBehaviour

更新：
好像跟class名無關，不過我找到另外的錯誤了，應該是要像這樣宣告：

//LineRendererSettings.cs
public class NewBehaviourScript : MonoBehaviour
{
    ...
    
    
    public LayerMask layerMask;

    public void AlignLineRenderer(LineRenderer rend)
    {
        ...
    }

}

我一開始宣告成這樣：

//LineRendererSettings.cs
public class NewBehaviourScript : MonoBehaviour
{
    ...
    
    
    

}

public LayerMask layerMask;

public void AlignLineRenderer(LineRenderer rend)
{
    ...
}

更新心得：

笑死，我昨天打這篇一直打瞌睡，一行字就花了我15分鐘，不知道在寫什麼。

參考：
https://learn.unity.com/tutorial/creating-a-vr-menu-2019-2#6036dc27edbc2a50f848a701