动态生成预制体工具，如果有已经有当前预制体直接覆盖，方便运行时保存

/// <summary> /// itemName：菜单名称路径，isValidateFunction:不写为false,true则点击菜单前就会调用，priority:菜单项显示排序 /// </summary> [MenuItem("MyTools/Apply_To_Prefab", false, 61)] public static void Apply_To_Prefab() { GameObject souce = PrefabUtility.GetPrefabParent(Selection.activeGameObject) as GameObject; if (souce == null)//当前没有该预制体 { GameObject go = Selection.activeGameObject; string path = "Assets/Prefabs/"; if (!Directory.Exists(path)) { Directory.CreateDirectory(path); } path += Selection.activeGameObject.name + ".prefab"; PrefabUtility.CreatePrefab(path, go); } else { PrefabUtility.ReplacePrefab(Selection.activeGameObject, souce, ReplacePrefabOptions.ConnectToPrefab); } }