Unity3D研究院编辑器之不实例化Prefab获取删除更新组件（十五）

	[MenuItem("Assets/Delete")]
	static void delete () 
	{
		GameObject prefab = AssetDatabase.LoadAssetAtPath<GameObject>("Assets/GameObject.prefab");

		//删除MeshCollider
		MeshCollider [] meshColliders = prefab.GetComponentsInChildren<MeshCollider>(true);
		foreach(MeshCollider meshCollider in meshColliders){

			GameObject.DestroyImmediate(meshCollider,true);
		}

		//删除空的Animation组件
		Animation [] animations = prefab.GetComponentsInChildren<Animation>(true);
		foreach(Animation animation in animations){
			if(	animation.clip == null){
				GameObject.DestroyImmediate(animation,true);
			}

		}

		//删除missing的脚本组件
		MonoBehaviour [] monoBehaviours = prefab.GetComponentsInChildren<MonoBehaviour>(true);
		foreach(MonoBehaviour monoBehaviour in monoBehaviours){


			if(monoBehaviour == null){
				Debug.Log("有个missing的脚本");
				//GameObject.DestroyImmediate(monoBehaviour,true);

			}
		}

		//遍历Transform的名子， 并且给某个游戏对象添加一个脚本
		Transform [] transforms = prefab.GetComponentsInChildren<Transform>(true);
		foreach(Transform transfomr in transforms){
			if(transfomr.name == "GameObject (1)"){
				Debug.Log(transfomr.parent.name);
				transfomr.gameObject.AddComponent<BoxCollider>();
				return;
			}

		}
		//遍历Transform的名子， 删除某个GameObject节点
		foreach(Transform transfomr in transforms){
			if(transfomr.name == "GameObject (2)"){
				GameObject.DestroyImmediate(transfomr.gameObject,true);
				return;
			}

		}
                EditorUtility.SetDirty(prefab);
	}

 [MenuItem("Edit/Cleanup Missing Scripts")]
 static void CleanupMissingScripts ()
 {
     for(int i = 0; i < Selection.gameObjects.Length; i++)
     {
         var gameObject = Selection.gameObjects[i];
         
         // We must use the GetComponents array to actually detect missing components
         var components = gameObject.GetComponents<Component>();
         
         // Create a serialized object so that we can edit the component list
         var serializedObject = new SerializedObject(gameObject);
         // Find the component list property
         var prop = serializedObject.FindProperty("m_Component");
         
         // Track how many components we've removed
         int r = 0;
         
         // Iterate over all components
         for(int j = 0; j < components.Length; j++)
         {
             // Check if the ref is null
             if(components[j] == null)
             {
                 // If so, remove from the serialized component array
                 prop.DeleteArrayElementAtIndex(j-r);
                 // Increment removed count
                 r++;
             }
         }
         
         // Apply our changes to the game object
         serializedObject.ApplyModifiedProperties();
         //这一行一定要加！！！
         EditorUtility.SetDirty(gameObject);
     }
 }

File.ReadAllText("xxx/xxx.prefab")