unity场景名对象在Inspector面板以下拉列表形式显示，避免输入错误。

首先创建一个类用来获取BuildSetting中场景列表中的所有场景名字

public class MSceneName : PropertyAttribute {
    /// <summary>
    /// 场景名列表
    /// </summary>
    public string[] NameList {
        get {
            return GetAllSceneNames();
        }
    }
    /// <summary>
    /// 获取BuildSetting中场景列表，并返回场景名列表
    /// </summary>
    /// <returns></returns>
    public string[] GetAllSceneNames() {
        List<string> lst = new List<string>();
        foreach (EditorBuildSettingsScene scene in EditorBuildSettings.scenes) {
            if (scene.enabled) {
                string str = scene.path.Substring(scene.path.LastIndexOf('/') + 1);
                str = str.Substring(0, str.Length - 6);
                lst.Add(str);
            }
        }
        return lst.ToArray();
    }
}

编写Inspector面板显示的扩展方法

[CustomPropertyDrawer(typeof(MSceneName))]
public class MSceneNameInspector : PropertyDrawer {
    public MSceneNameInspector() {

    }
    public override void OnGUI(Rect position, SerializedProperty property, GUIContent label) {
        string[] nameList = (attribute as MSceneName).NameList;
        if(property.propertyType == SerializedPropertyType.String) {
            int index = Mathf.Max(0, Array.IndexOf<string>(nameList, property.stringValue));
            index = EditorGUI.Popup(position, property.displayName, index, nameList);
            property.stringValue = nameList[index];
        } else {
            base.OnGUI(position, property, label);
        }
    }
}

 使用方法，在声明变量前添加特性即可。

[MSceneName] public string sceneForm;