C# 如何使用foreach销毁arraylist

我的问题是代码

foreach（LightWall中的var-walls）

。我尝试只使用另一面墙，但出现了此错误：

墙与子块中的声明冲突

。摆脱它的唯一方法是制作另一个类似的。

如果您试图使用错误的参数进行破坏，请使用

wall

而不是

LightWall

GameObject Lightwall;   // It's here we store the name tag 
GameObject LightWalls;  //the name of the tag
Object[] LightWall; 

public GameObject wallPrefab;
Collider2D wall;  // this is the wall which is surrounding the player
Collider2D walls; //had to make a new because of this error `wall' conflicts with a declaration in a child block

Vector2 lastWallEnd;

void OnTriggerEnter2D(Collider2D co)
{
    if (co != wall && co.tag != "Power Up")
    {
        healthP1--;

        if (healthP1 == 1)
        {
            transform.position = Vector3.zero;

            var Lightwall = GameObject.FindWithTag("LightWalls");
            foreach (var walls in LightWall) //NullReferenceException: Object reference not set to an instance of an object this is the error that i'm getting: Playermovmnet.OnTriggerEnter2D(UnityEngine.Collider2D co)
            {
                Destroy(Lightwall);
            }

        }

---

如果您试图使用错误的参数进行销毁，请使用

wall

而不是

LightWall

GameObject Lightwall;   // It's here we store the name tag 
GameObject LightWalls;  //the name of the tag
Object[] LightWall; 

public GameObject wallPrefab;
Collider2D wall;  // this is the wall which is surrounding the player
Collider2D walls; //had to make a new because of this error `wall' conflicts with a declaration in a child block

Vector2 lastWallEnd;

void OnTriggerEnter2D(Collider2D co)
{
    if (co != wall && co.tag != "Power Up")
    {
        healthP1--;

        if (healthP1 == 1)
        {
            transform.position = Vector3.zero;

            var Lightwall = GameObject.FindWithTag("LightWalls");
            foreach (var walls in LightWall) //NullReferenceException: Object reference not set to an instance of an object this is the error that i'm getting: Playermovmnet.OnTriggerEnter2D(UnityEngine.Collider2D co)
            {
                Destroy(Lightwall);
            }

        }

---

更改<代码>销毁（光墙）至<代码>销毁（墙壁）就像上面提到的Valentin一样是正确的方法，但是正如您在代码注释中所说的那样-NullReferenceException-那么问题在于您的前一行返回了一个空引用“var Lightwall=GameObject.FindWithTag（“LightWalls”）；“Change

Destroy（Lightwall”）至<代码>销毁（墙壁）就像上面提到的Valentin一样是正确的方法，但是正如您在代码注释中所说的那样-NullReferenceException-那么问题是在您的前一行中返回了一个空引用“var Lightwall=GameObject.FindWithTag（“LightWalls”）；”问题是
var Lightwall=GameObject.FindWithTag（“LightWalls”）光墙是一个游戏对象。所以我应该去掉var Lightwall=GameObject.FindWithTag（“光墙”）；如果你摆脱了它，你将如何得到一个要销毁的墙列表？代码正在工作，但当我的玩家重置到原始位置时，墙不会被销毁。这可能意味着在重置玩家位置之前，应该在不同的事件触发器上运行此代码。
var Lightwall=GameObject.FindWithTag(“Lightwall”）；
Lightwall是一个游戏对象。所以我应该去掉var Lightwall=GameObject.FindWithTag（“LightWalls”）；如果你清除了它，你将如何获得要销毁的墙列表？代码正在工作，但当我的玩家重置到原始位置时，墙不会被销毁。这可能意味着在重置玩家位置之前，此代码应该在不同的事件触发器上运行