public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
        {
            DefultGameObjectAttribute att = (DefultGameObjectAttribute)attribute;

            if (property.propertyType == SerializedPropertyType.ObjectReference)
            {
                EditorGUI.PropertyField(position, property, new GUIContent(att.title));

                if (property.objectReferenceValue == null && property.serializedObject.targetObject is MonoBehaviour)
                {
                    property.objectReferenceValue = (property.serializedObject.targetObject as MonoBehaviour).gameObject;
                }
            }
        }
        public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
        {
            DefultGameObjectAttribute att = (DefultGameObjectAttribute)attribute;

            return(EditorGUIUtility.singleLineHeight);
        }