UnityEditor.EditorGUILayout.BeginVertical C# (CSharp) Method

        public static Rect BeginVertical(params GUILayoutOption[] options)
        {
            return BeginVertical(GUIContent.none, GUIStyle.none, options);
        }

    private void OnGUI()
    {
        UG.BeginVertical();

        UG.BeginHorizontal();
        UG.LabelField("当前数据源：" + (_dataPath.IsNullPath() ? "未在本地保存，已编辑内容随时可能丢失！" : _dataPath));
        if (GUILayout.Button("选择"))
        {
            string path = EditorUtility.OpenFilePanelWithFilters("选择数据源文件", Application.dataPath + "/Hotassets/Data", new [] { "text", "txt" });
            if (!string.IsNullOrEmpty(path))
            {
                Dictionary <string, List <InterlocutionData> > temperData = null;
                try {
                    temperData = JsonConvert.DeserializeObject <Dictionary <string, List <InterlocutionData> > >(File.ReadAllText(path));
                } catch (JsonException) {
                    temperData = _data;
                    path       = _dataPath;
                    EditorApplication.Beep();
                    EditorUtility.DisplayDialog("异常捕获！", "数据源文件不能被正确加载，请确定.json文件的有效性", "知道了");
                } finally {
                    _data     = temperData;
                    _dataPath = path;
                }
            }
        }

        UG.EndHorizontal();

        UG.BeginHorizontal();

        int subject = UG.Popup("所属学科", _editingSubject, InterlocutionData.Keys);

        if (subject != _editingSubject)
        {
            _editingInterlocution = -1;
        }
        _editingSubject = subject;
        string key = InterlocutionData.Keys[_editingSubject];

        UG.LabelField("分组", _editingSubject != InterlocutionData.Keys.Length - 1 ? Subject.ToSubject(InterlocutionData.Keys[_editingSubject]).group.ToString() : "无");

        UG.EndHorizontal();

        _scrollPostion = UG.BeginScrollView(_scrollPostion);

        if (!_data.ContainsKey(key))
        {
            _data[key] = new List <InterlocutionData>();
        }
        List <InterlocutionData> interlocutions = _data[key];

        int _deletedInterlocution = -1;

        UG.LabelField("[已有 " + interlocutions.Count + " 道问答]");
        for (int i = 0, l = interlocutions.Count; i < l; i++)
        {
            UG.BeginHorizontal();

            UG.LabelField("[Q " + i + "] " + interlocutions[i].question);
            if (GUILayout.Button("编辑"))
            {
                _editingInterlocution = i;
            }

            if (GUILayout.Button("删除"))
            {
                EditorApplication.Beep();
                if (EditorUtility.DisplayDialog("危险操作警告⚠️", "即将删除问答 [Q" + i + "] （该操作不可逆）", "确认", "取消"))
                {
                    _deletedInterlocution = i;
                    if (_editingInterlocution == _deletedInterlocution)
                    {
                        _editingInterlocution = -1;
                    }
                }
            }

            UG.EndHorizontal();
        }

        if (_deletedInterlocution != -1)
        {
            interlocutions.RemoveAt(_deletedInterlocution);
        }

        UG.EndScrollView();

        if (GUILayout.Button("添加问答"))
        {
            _editingInterlocution = interlocutions.Count;
            interlocutions.Add(new InterlocutionData());
        }

        UG.LabelField("问答编辑区");
        if (_editingInterlocution != -1)
        {
            UG.LabelField("Q " + _editingInterlocution);
            InterlocutionData interlocution = interlocutions[_editingInterlocution];
            interlocution.question = UG.TextArea(interlocution.question);
            interlocution.answer   = (Option)UG.EnumPopup("正确选项", interlocution.answer);
            UG.LabelField("选项A");
            interlocution.optionA = UG.TextArea(interlocution.optionA);
            UG.LabelField("选项B");
            interlocution.optionB = UG.TextArea(interlocution.optionB);
            UG.LabelField("选项C");
            interlocution.optionC = UG.TextArea(interlocution.optionC);
            UG.LabelField("选项D");
            interlocution.optionD = UG.TextArea(interlocution.optionD);
        }
        else
        {
            UG.HelpBox("需要选择一个问答进行编辑！", MessageType.Warning);
        }

        if (GUILayout.Button("保存"))
        {
            bool toSave   = true;
            bool toImport = false;
            if (_dataPath.IsNullPath())
            {
                string path = EditorUtility.SaveFilePanel("保存问答数据", Application.dataPath + "/Hotassets/Data", "InterlocutionData", "txt");
                if (string.IsNullOrEmpty(path))
                {
                    toSave = false;
                }
                else
                {
                    _dataPath = path;
                    toImport  = true;
                }
            }

            if (toSave)
            {
                File.WriteAllText(_dataPath, JsonConvert.SerializeObject(_data));
                EditorPrefs.SetString(DATA_SAVE_PATH, _dataPath);
            }

            if (toImport)
            {
                AssetDatabase.ImportAsset(_dataPath.Substring(_dataPath.IndexOf("Assets")));
            }
        }

        UG.EndVertical();
    }