Unity编辑器扩展

using UnityEditor;
      EditorGUILayout.BeginHorizontal();
        EditorGUILayout.Popup(0, new string[] { "A", "B" });
        if (GUILayout.Button("读取列表")) {
        }
        EditorGUILayout.EndHorizontal();

//为变量增加面板TIP
[Tooltip("高度")]
public int SS = 1;

//打包U3D资源,自己用还会出错?!
    [MenuItem("Assets/BB")]
 public static void BS()
    {
        string Dir = "AssentBundles";
        if(!Directory.Exists(Dir))
        {
            Directory.CreateDirectory(Dir);
        }
        BuildPipeline.BuildAssetBundles(Dir, BuildAssetBundleOptions.None, BuildTarget.StandaloneWindows64);
    }