升级到webpack4

src/CameraControls.ts

@@ -4,14 +4,6 @@ import { KeyBoard, MouseKey } from './KeyEnum';
 import { Vector3 } from 'three';
 import { Viewer } from './Viewer';
 
-//控制类型
-enum CameraControlsEnabled
-{
-    Rotate = 1,
-    Zoom = 2,
-    Pan = 4,
-}
-
 //相机控制状态
 export enum CameraControlState
 {