UGUI制作滚动列表，添加删除元素，元素可以动态更改大小。

public class OrderListUI : MonoBehaviour { [SerializeField] private Transform recipeParent; [SerializeField] private RecipeUI recipeUITemplate; private void Start() { recipeUITemplate.gameObject.SetActive(false); OrderManager.Instance.OnRecipeSqawned += OrderManager_OnRecipeSpawned; OrderManager.Instance.OnRecipeSuccessed += OrderManager_OnRecipeSuccessed; } private void OrderManager_OnRecipeSpawned(object sender, System.EventArgs e) { UpdateUI(); } private void OrderManager_OnRecipeSuccessed(object sender, System.EventArgs e) { UpdateUI(); } private void UpdateUI() { foreach (Transform child in recipeParent) { if (child != recipeUITemplate.transform) { Destroy(child.gameObject); } } List<RecipeSO> recipeSOList = OrderManager.Instance.GetOrderList(); foreach (RecipeSO recipeSO in recipeSOList) { RecipeUI recipeUI = GameObject.Instantiate(recipeUITemplate); recipeUI.transform.SetParent(recipeParent); recipeUI.gameObject.SetActive(true); recipeUI.UpdateUI(recipeSO); } } 说明这段代码实现的功能